ZSPM1506ZA1W0 [IDT]

True-Digital PWM Controller;
ZSPM1506ZA1W0
型号: ZSPM1506ZA1W0
厂家: INTEGRATED DEVICE TECHNOLOGY    INTEGRATED DEVICE TECHNOLOGY
描述:

True-Digital PWM Controller

文件: 总101页 (文件大小:8749K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
ZSPM15xx  
True-Digital PWM Controller  
(Single-Phase, Single-Rail)  
Datasheet  
Brief Description  
Benefits  
ZSPM15xx family ICs are controllers designed for  
high-current, non-isolated DC/DC step-down point of  
load (POL) converters. The ZSPM15xx has a digital  
control loop that is optimized for maximum stability  
as well as load step and steady-state performance.  
Factory pre-configured for industry standard  
output voltages and currents enabling fast  
time-to-market  
Simplified design and integration  
FPGA designer-friendly solution  
ZSPM15xx family ICs have a rich set of integrated  
fault protection features including over-voltage/  
under-voltage, output over-current, and over-temper-  
ature protections. To facilitate ease of use, the  
ZSPM15xx is pre-programmed and available for  
common output voltages. To provide flexibility for the  
end-customer, the over-current protection threshold  
and the control loop compensation are selectable by  
the end-customer to match a number of selected  
power stages.  
Highest power density with smallest footprint  
Higher energy efficiency across all output loading  
conditions  
Operation from a single 5V supply  
Available Support  
Reference designs  
Evaluation kits  
ZSPM15xx family ICs have been optimized for max-  
imum efficiency when used with IDT’s DrMOS  
devices. Reference designs and application instruc-  
tions enable a high performance turnkey solution  
without extensive engineering development.  
Physical Characteristics  
Operation temperature: -40°C to +125°C  
VIN for POL application:10.8V to 13.2V  
VDD50 voltage supply: 4.75 to 5.25V  
Available Output Voltages: 0.85V, 1.0V, 1.2V,  
1.5V, 1.8V, 2.0V, 2.5V, 3.3V, and 5.0V  
Features  
Advanced digital control techniques  
Lead free (RoHS compliant) 24-pin QFN package  
(4mm x 4mm)  
Tru-sample Technology™  
State-Law Control™ (SLC)  
Preconfigured compensation for selected  
inductance values.  
ZSPM15xx Typical Application Diagram  
Improved transient response and noise immunity  
Protection features  
ZSPM15xx  
ZSPM90xx  
Configuration for over-current protection  
Over-voltage protection (VIN, VOUT)  
Under-voltage protection (VIN, VOUT)  
Over-temperature protection  
Overloaded startup  
QFN 4x4 mm  
PQFN 6x6 mm  
Current Sensing  
Digital Control Loop  
Restart and delay  
Power Management  
Driver  
r  
(Sequencing, Protection,…)  
Housekeeping  
and  
Communication  
© 2016 Integrated Device Technology, Inc.  
1
January 27, 2016  
ZSPM15xx  
True-Digital PWM Controller  
(Single-Phase, Single-Rail)  
Datasheet  
Current Sensing  
ISNSP  
ISNSN  
Current  
Limiting  
Average Current  
Sensing  
ZSPM15xx Block Diagram  
Digital Control Loop  
VFBP  
VFBN  
VFB  
PWM  
PWM  
FLASH  
ADC  
Adaptive Digital  
Controller  
DRVEN  
DAC  
OC Detection  
OV Detection  
OT Detection  
Sequencer  
Typical Applications  
DAC  
Configurable  
Error Handler  
Telecom Switches  
Servers and Storage  
Base Stations  
Vin OV/UV  
Detection  
Bias  
Current  
Source  
Int. Temp  
Sense  
VREFP  
VREF  
Vout UV Detection  
1.8V Reg  
Analog  
Network Routers  
Industrial Applications  
AVDD18  
TEMP  
CONFIG0  
CONFIG1  
VIN  
NVM  
HKADC  
CPU Core  
(OTP)  
1.8V Reg  
Digital  
VDD18  
VDD33  
Single-Rail/Single-Phase  
Supplies for Processors,  
ASICs, FPGAs, DSPs  
GPIO  
Clock  
Generation  
3.3V  
Reg  
Ordering Information  
Product Code  
Description  
Package  
ZSPM1501ZA1W0  
ZSPM1502ZA1W0  
ZSPM1503ZA1W0  
ZSPM1504ZA1W0  
ZSPM1505ZA1W0  
ZSPM1506ZA1W0  
ZSPM1507ZA1W0  
ZSPM1508ZA1W0  
ZSPM1509ZA1W0  
ZSPM1511ZA1W0  
ZSPM1512ZA1W0  
ZSPM1513ZA1W0  
ZSPM1501 lead-free QFN24; output voltage: 0.85V; inductance: 330nH; temperature: -40°C to +125°C  
ZSPM1502 lead-free QFN24; output voltage: 1.00V; inductance: 330nH; temperature: -40°C to +125°C  
ZSPM1503 lead-free QFN24; output voltage: 1.20V; inductance: 330nH; temperature: -40°C to +125°C  
ZSPM1504 lead-free QFN24; output voltage: 1.50V; inductance: 470nH; temperature: -40°C to +125°C  
ZSPM1505 lead-free QFN24; output voltage: 1.80V; inductance: 470nH; temperature: -40°C to +125°C  
ZSPM1506 lead-free QFN24; output voltage: 2.00V; inductance: 470nH; temperature: -40°C to +125°C  
Reel  
Reel  
Reel  
Reel  
Reel  
Reel  
Reel  
Reel  
Reel  
Reel  
Reel  
Reel  
ZSPM1507 lead-free QFN24; output voltage: 2.50V; inductance: 1000nH; temperature: -40°C to +125°C  
ZSPM1508 lead-free QFN24; output voltage: 3.30V; inductance: 2200nH; temperature: -40°C to +125°C  
ZSPM1509 lead-free QFN24; output voltage: 5.00V; inductance: 2200nH; temperature: -40°C to +125°C  
ZSPM1511 lead-free QFN24; output voltage: 0.85V; inductance: 680nH; temperature: -40°C to +125°C  
ZSPM1512 lead-free QFN24; output voltage: 1.00V; inductance: 680nH; temperature: -40°C to +125°C  
ZSPM1513 lead-free QFN24; output voltage: 1.20V; inductance: 680nH; temperature: -40°C to +125°C  
Corporate Headquarters  
6024 Silver Creek Valley Road  
San Jose, CA 95138  
Sales  
Tech Support  
www.IDT.com/go/support  
1-800-345-7015 or 408-284-8200  
Fax: 408-284-2775  
www.IDT.com/go/sales  
www.IDT.com  
DISCLAIMER Integrated Device Technology, Inc. (IDT) reserves the right to modify the products and/or specifications described herein at any time, without notice, at IDT's sole discretion. Performance  
specifications and operating parameters of the described products are determined in an independent state and are not guaranteed to perform the same way when installed in customer products. The  
information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the suitability of IDT's products for any particular purpose, an  
implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any license under intellectual property  
rights of IDT or any third parties.  
IDT's products are not intended for use in applications involving extreme environmental conditions or in life support systems or similar devices where the failure or malfunction of an IDT product can be  
reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT.  
Integrated Device Technology, IDT and the IDT logo are trademarks or registered trademarks of IDT and its subsidiaries in the United States and other countries. Other trademarks used herein are the  
property of IDT or their respective third party owners. For datasheet type definitions and a glossary of common terms, visit www.idt.com/go/glossary. All contents of this document are copyright of Integrated  
Device Technology, Inc. All rights reserved.  
© 2016 Integrated Device Technology, Inc.  
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ZSPM15xx Datasheet  
Contents  
1
IC Characteristics ........................................................................................................................................... 14  
1.1. Absolute Maximum Ratings..................................................................................................................... 14  
1.2. Recommended Operating Conditions ..................................................................................................... 15  
1.3. Electrical Parameters .............................................................................................................................. 15  
1.4. Device-Specific System Parameters....................................................................................................... 18  
1.4.1. ZSPM1501 ........................................................................................................................................ 18  
1.4.2. ZSPM1502 ........................................................................................................................................ 18  
1.4.3. ZSPM1503 ........................................................................................................................................ 19  
1.4.4. ZSPM1504 ........................................................................................................................................ 20  
1.4.5. ZSPM1505 ........................................................................................................................................ 20  
1.4.6. ZSPM1506 ........................................................................................................................................ 21  
1.4.7. ZSPM1507 ........................................................................................................................................ 22  
1.4.8. ZSPM1508 ........................................................................................................................................ 22  
1.4.9. ZSPM1509 ........................................................................................................................................ 23  
1.4.10. ZSPM1511 ........................................................................................................................................ 23  
1.4.11. ZSPM1512 ........................................................................................................................................ 24  
1.4.12. ZSPM1513 ........................................................................................................................................ 24  
Product Summary........................................................................................................................................... 25  
2.1. Overview.................................................................................................................................................. 25  
2.2. Pin Description......................................................................................................................................... 27  
2.3. Available Packages ................................................................................................................................. 28  
Functional Description.................................................................................................................................... 29  
3.1. Power Supply Circuitry, Reference Decoupling, and Grounding ............................................................29  
3.2. Reset/Start-up Behavior .......................................................................................................................... 29  
3.3. Digital Power Control............................................................................................................................... 29  
3.3.1. Overview ........................................................................................................................................... 29  
3.3.2. Output Voltage Feedback ................................................................................................................. 29  
3.3.3. Digital Compensator ......................................................................................................................... 30  
3.3.4. Power Sequencing and the CONTROL Pin...................................................................................... 31  
3.4. Fault Monitoring and Response Generation............................................................................................ 32  
3.4.1. Output Over/Under-Voltage .............................................................................................................. 32  
3.4.2. Output Current Protection................................................................................................................. 32  
3.4.3. Input Voltage Protection.................................................................................................................... 33  
3.4.4. Over-Temperature Protection ........................................................................................................... 33  
Application Information................................................................................................................................... 34  
4.1. Application Schematic ............................................................................................................................. 34  
4.2. Device-Specific Passive Components..................................................................................................... 36  
4.3. Output Voltage Feedback Components .................................................................................................. 38  
2
3
4
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ZSPM15xx Datasheet  
4.4. DCR Current Sensing Components ........................................................................................................ 38  
4.5. Input Voltage Sensing ............................................................................................................................. 39  
4.6. External Temperature Sensing................................................................................................................ 39  
4.7. CONFIG0 – Over-Current Protection Threshold ..................................................................................... 40  
4.8. CONFIG1 – Compensation Loop and Output Voltage Slew Rate...........................................................41  
Typical Performance Data.............................................................................................................................. 46  
5.1. ZSPM1501 – Typical Load Transient Response – Capacitor Range #1 – Comp0.................................47  
5.2. ZSPM1501 – Typical Load Transient Response – Capacitor Range #2 – Comp1.................................48  
5.3. ZSPM1501 – Typical Load Transient Response – Capacitor Range #3 – Comp2.................................49  
5.4. ZSPM1501 – Typical Load Transient Response – Capacitor Range #4 – Comp3.................................50  
5.5. ZSPM1502 – Typical Load Transient Response – Capacitor Range #1 – Comp0.................................51  
5.6. ZSPM1502 – Typical Load Transient Response – Capacitor Range #2 – Comp1.................................52  
5.7. ZSPM1502 – Typical Load Transient Response – Capacitor Range #3 – Comp2.................................53  
5.8. ZSPM1502 – Typical Load Transient Response – Capacitor Range #4 – Comp3.................................54  
5.9. ZSPM1503 – Typical Load Transient Response – Capacitor Range #1 – Comp0.................................55  
5.10. ZSPM1503 – Typical Load Transient Response – Capacitor Range #2 – Comp1.................................56  
5.11. ZSPM1503 – Typical Load Transient Response – Capacitor Range #3 – Comp2.................................57  
5.12. ZSPM1503 – Typical Load Transient Response – Capacitor Range #4 – Comp3.................................58  
5.13. ZSPM1504 – Typical Load Transient Response – Capacitor Range #1 – Comp0.................................59  
5.14. ZSPM1504 – Typical Load Transient Response – Capacitor Range #2 – Comp1.................................60  
5.15. ZSPM1504 – Typical Load Transient Response – Capacitor Range #3 – Comp2.................................61  
5.16. ZSPM1504 – Typical Load Transient Response – Capacitor Range #4 – Comp3.................................62  
5.17. ZSPM1505 – Typical Load Transient Response – Capacitor Range #1 – Comp0.................................63  
5.18. ZSPM1505 – Typical Load Transient Response – Capacitor Range #2 – Comp1.................................64  
5.19. ZSPM1505 – Typical Load Transient Response – Capacitor Range #3 – Comp2.................................65  
5.20. ZSPM1505 – Typical Load Transient Response – Capacitor Range #4 – Comp3.................................66  
5.21. ZSPM1506 – Typical Load Transient Response – Capacitor Range #1 – Comp0.................................67  
5.22. ZSPM1506 – Typical Load Transient Response – Capacitor Range #2 – Comp1.................................68  
5.23. ZSPM1506 – Typical Load Transient Response – Capacitor Range #3 – Comp2.................................69  
5.24. ZSPM1506 – Typical Load Transient Response – Capacitor Range #4 – Comp3.................................70  
5.25. ZSPM1507 – Typical Load Transient Response –Capacitor Range 1 – Comp0....................................71  
5.26. ZSPM1507 – Typical Load Transient Response –Capacitor Range 2 – Comp1....................................72  
5.27. ZSPM1507 – Typical Load Transient Response –Capacitor Range 3 – Comp2....................................73  
5.28. ZSPM1507 – Typical Load Transient Response –Capacitor Range 4 – Comp3....................................74  
5.29. ZSPM1508 – Typical Load Transient Response –Capacitor Range 1 – Comp0....................................75  
5.30. ZSPM1508 – Typical Load Transient Response –Capacitor Range 2 – Comp1....................................76  
5.31. ZSPM1508 – Typical Load Transient Response –Capacitor Range 3 – Comp2....................................77  
5.32. ZSPM1508 – Typical Load Transient Response –Capacitor Range 4 – Comp3....................................78  
5.33. ZSPM1509 – Typical Load Transient Response –Capacitor Range 1 – Comp0....................................79  
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ZSPM15xx Datasheet  
5.34. ZSPM1509 – Typical Load Transient Response –Capacitor Range 2 – Comp1....................................80  
5.35. ZSPM1509 – Typical Load Transient Response –Capacitor Range 3 – Comp2....................................81  
5.36. ZSPM1509 – Typical Load Transient Response –Capacitor Range 4 – Comp3....................................82  
5.37. ZSPM1511 – Typical Load Transient Response – Capacitor Range #1 – Comp0.................................83  
5.38. ZSPM1511 – Typical Load Transient Response – Capacitor Range #2 – Comp1.................................84  
5.39. ZSPM1511 – Typical Load Transient Response – Capacitor Range #3 – Comp2.................................85  
5.40. ZSPM1511 – Typical Load Transient Response – Capacitor Range #4 – Comp3.................................86  
5.41. ZSPM1512 – Typical Load Transient Response – Capacitor Range #1 – Comp0.................................87  
5.42. ZSPM1512 – Typical Load Transient Response – Capacitor Range #2 – Comp1.................................88  
5.43. ZSPM1512 – Typical Load Transient Response – Capacitor Range #3 – Comp2.................................89  
5.44. ZSPM1512 – Typical Load Transient Response – Capacitor Range #4 – Comp3.................................90  
5.45. ZSPM1513 – Typical Load Transient Response – Capacitor Range #1 – Comp0.................................91  
5.46. ZSPM1513 – Typical Load Transient Response – Capacitor Range #2 – Comp1.................................92  
5.47. ZSPM1513 – Typical Load Transient Response – Capacitor Range #3 – Comp2.................................93  
5.48. ZSPM1513 – Typical Load Transient Response – Capacitor Range #4 – Comp3.................................94  
5.49. Typical Efficiency Curves – ZSPM1502 with ZSPM9000, ZSPM9015, and ZSPM9060 DrMOS ...........95  
5.50. Typical Efficiency Curves – ZSPM9000 DrMOS with ZSPM1504, ZSPM1505, and ZSPM1506 ...........96  
5.51. Typical Efficiency Curves – ZSPM9000 and ZSPM9060 DrMOS with ZSPM1508 and ZSPM1509 ......97  
5.52. Typical Efficiency Curves – ZSPM9000 and ZSPM9060 DrMOS with ZSPM1511, ZSPM1512,  
and ZSPM1513........................................................................................................................................ 98  
6
7
8
9
Mechanical Specifications.............................................................................................................................. 99  
Ordering Information .................................................................................................................................... 100  
Related Documents...................................................................................................................................... 100  
Glossary ....................................................................................................................................................... 101  
10 Document Revision History.......................................................................................................................... 101  
List of Figures  
Figure 2.1  
Figure 2.2  
Figure 2.3  
Figure 3.1  
Figure 3.2  
Figure 4.1  
Figure 4.2  
Figure 4.3  
Figure 4.4  
Figure 4.5  
Figure 5.1  
Typical Application Circuit with a 5V Supply Voltage.....................................................................25  
Block Diagram................................................................................................................................ 26  
Pin-out QFN24 Package ................................................................................................................ 28  
Simplified Block Diagram of the Digital Compensation..................................................................30  
Power Sequencing......................................................................................................................... 31  
ZSPM15xx – Application Circuit with a 5V Supply Voltage ...........................................................34  
Output Voltage Sense Circuitry...................................................................................................... 38  
Inductor Current Sensing Using the DCR Method.........................................................................38  
Input Voltage Sense Circuitry......................................................................................................... 39  
External Temperature Sense Circuitry........................................................................................... 39  
ZSPM1501 with Comp0; 5A to 15A Load Step; and Min. Capacitance.........................................47  
© 2016 Integrated Device Technology, Inc.  
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January 27, 2016  
ZSPM15xx Datasheet  
Figure 5.2  
Figure 5.3  
Figure 5.4  
Figure 5.5  
Figure 5.6  
Figure 5.7  
Figure 5.8  
Figure 5.9  
ZSPM1501 with Comp0; 15A to 5A Load Step; and Min. Capacitance.........................................47  
ZSPM1501 with Comp0; 5A to 15A Load Step; and Max. Capacitance........................................47  
ZSPM1501 with Comp0; 15A to 5A Load Step; and Max. Capacitance........................................47  
Open Loop Bode Plots for ZSPM1501 with Comp0....................................................................... 47  
ZSPM1501 with Comp1; 5A to 15A Load Step; and Min. Capacitance.........................................48  
ZSPM1501 with Comp1; 15A to 5A Load Step; and Min. Capacitance.........................................48  
ZSPM1501 with Comp1; 5A to 15A Load Step; and Max. Capacitance........................................48  
ZSPM1501 with Comp1; 15A to 5A Load Step; and Max. Capacitance........................................48  
Figure 5.10 Open Loop Bode Plots for ZSPM1501 with Comp1....................................................................... 48  
Figure 5.11 ZSPM1501 with Comp2; 5A to 15A Load Step; and Min. Capacitance.........................................49  
Figure 5.12 ZSPM1501 with Comp2; 15A to 5A Load Step; and Min. Capacitance.........................................49  
Figure 5.13 ZSPM1501 with Comp2; 5A to 15A Load Step; and Max. Capacitance........................................49  
Figure 5.14 ZSPM1501 with Comp2; 15A to 5A Load Step; and Max. Capacitance........................................49  
Figure 5.15 Open Loop Bode Plots for ZSPM1501 with Comp2....................................................................... 49  
Figure 5.16 ZSPM1501 with Comp3; 5A to 15A Load Step; and Min. Capacitance.........................................50  
Figure 5.17 ZSPM1501 with Comp3; 15A to 5A Load Step; and Min. Capacitance.........................................50  
Figure 5.18 ZSPM1501 with Comp3; 5A to 15A Load Step; and Max. Capacitance........................................50  
Figure 5.19 ZSPM1501 with Comp3; 15A to 5A Load Step; and Max. Capacitance........................................50  
Figure 5.20 Open Loop Bode Plots for ZSPM1501 with Comp3....................................................................... 50  
Figure 5.21 ZSPM1502 with Comp0; 5A to 15A Load Step; and Min. Capacitance.........................................51  
Figure 5.22 ZSPM1502 with Comp0; 15A to 5A Load Step; and Min. Capacitance.........................................51  
Figure 5.23 ZSPM1502 with Comp0; 5A to 15A Load Step; and Max. Capacitance........................................51  
Figure 5.24 ZSPM1502 with Comp0; 15A to 5A Load Step; and Max. Capacitance........................................51  
Figure 5.25 Open Loop Bode Plots for ZSPM1502 with Comp0....................................................................... 51  
Figure 5.26 ZSPM1502 with Comp1; 5A to 15A Load Step; and Min. Capacitance.........................................52  
Figure 5.27 ZSPM1502 with Comp1; 15A to 5A Load Step; and Min. Capacitance.........................................52  
Figure 5.28 ZSPM1502 with Comp1; 5A to 15A Load Step; and Max. Capacitance........................................52  
Figure 5.29 ZSPM1502 with Comp1; 15A to 5A Load Step; and Max. Capacitance........................................52  
Figure 5.30 Open Loop Bode Plots for ZSPM1502 with Comp1....................................................................... 52  
Figure 5.31 ZSPM1502 with Comp2; 5A to 15A Load Step; and Min. Capacitance.........................................53  
Figure 5.32 ZSPM1502 with Comp2; 15A to 5A Load Step; and Min. Capacitance.........................................53  
Figure 5.33 ZSPM1502 with Comp2; 5A to 15A Load Step; and Max. Capacitance........................................53  
Figure 5.34 ZSPM1502 with Comp2; 15A to 5A Load Step; and Max. Capacitance........................................53  
Figure 5.35 Open Loop Bode Plots for ZSPM1502 with Comp2....................................................................... 53  
Figure 5.36 ZSPM1502 with Comp3; 5A to 15A Load Step; and Min. Capacitance.........................................54  
Figure 5.37 ZSPM1502 with Comp3; 15A to 5A Load Step; and Min. Capacitance.........................................54  
Figure 5.38 ZSPM1502 with Comp3; 5A to 15A Load Step; and Max. Capacitance........................................54  
Figure 5.39 ZSPM1502 with Comp3; 15A to 5A Load Step; and Max. Capacitance........................................54  
Figure 5.40 Open Loop Bode Plots for ZSPM1502 with Comp3....................................................................... 54  
© 2016 Integrated Device Technology, Inc.  
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ZSPM15xx Datasheet  
Figure 5.41 ZSPM1503 with Comp0; 5A to 15A Load Step; and Min. Capacitance.........................................55  
Figure 5.42 ZSPM1503 with Comp0; 15A to 5A Load Step; and Min. Capacitance.........................................55  
Figure 5.43 ZSPM1503 with Comp0; 5A to 15A Load Step; and Max. Capacitance........................................55  
Figure 5.44 ZSPM1503 with Comp0; 15A to 5A Load Step; and Max. Capacitance........................................55  
Figure 5.45 Open Loop Bode Plots for ZSPM1503 with Comp0....................................................................... 55  
Figure 5.46 ZSPM1503 with Comp1; 5A to 15A Load Step; and Min. Capacitance.........................................56  
Figure 5.47 ZSPM1503 with Comp1; 15A to 5A Load Step; and Min. Capacitance.........................................56  
Figure 5.48 ZSPM1503 with Comp1; 5 to 15A Load Step; and Max. Capacitance ..........................................56  
Figure 5.49 ZSPM1503 with Comp1; 15 to 5A Load Step; and Max. Capacitance ..........................................56  
Figure 5.50 Open Loop Bode Plots for ZSPM1503 with Comp1....................................................................... 56  
Figure 5.51 ZSPM1503 with Comp2; 5A to 15A Load Step; and Min. Capacitance.........................................57  
Figure 5.52 ZSPM1503 with Comp2; 15A to 5A Load Step; and Min. Capacitance.........................................57  
Figure 5.53 ZSPM1503 with Comp2; 5A to 15A Load Step; and Max. Capacitance........................................57  
Figure 5.54 ZSPM1503 with Comp2; 15A to 5A Load Step; and Max. Capacitance........................................57  
Figure 5.55 Open Loop Bode Plots for ZSPM1503 with Comp2....................................................................... 57  
Figure 5.56 ZSPM1503 with Comp3; 5A to 15A Load Step; and Min. Capacitance.........................................58  
Figure 5.57 ZSPM1503 with Comp3; 15A to 5A Load Step; and Min. Capacitance.........................................58  
Figure 5.58 ZSPM1503 with Comp3; 5A to 15A Load Step; and Max. Capacitance........................................58  
Figure 5.59 ZSPM1503 with Comp3; 15A to 5A Load Step; and Max. Capacitance........................................58  
Figure 5.60 Open Loop Bode Plots for ZSPM1503 with Comp3....................................................................... 58  
Figure 5.61 ZSPM1504 with Comp0; 5A to 15A Load Step; and Min. Capacitance.........................................59  
Figure 5.62 ZSPM1504 with Comp0; 15A to 5A Load Step; and Min. Capacitance.........................................59  
Figure 5.63 ZSPM1504 with Comp0; 5A to 15A Load Step; and Max. Capacitance........................................59  
Figure 5.64 ZSPM1504 with Comp0; 15A to 5A Load Step; and Max. Capacitance........................................59  
Figure 5.65 Open Loop Bode Plots for ZSPM1504 with Comp0....................................................................... 59  
Figure 5.66 ZSPM1504 with Comp1; 5A to 15A Load Step; and Min. Capacitance.........................................60  
Figure 5.67 ZSPM1504 with Comp1; 15A to 5A Load Step; and Min. Capacitance.........................................60  
Figure 5.68 ZSPM1504 with Comp1; 5A to 15A Load Step; and Max. Capacitance........................................60  
Figure 5.69 ZSPM1504 with Comp1; 15A to 5A Load Step; and Max. Capacitance........................................60  
Figure 5.70 Open Loop Bode Plots for ZSPM1504 with Comp1....................................................................... 60  
Figure 5.71 ZSPM1504 with Comp2; 5A to 15A Load Step; and Min. Capacitance.........................................61  
Figure 5.72 ZSPM1504 with Comp2; 15A to 5A Load Step; and Min. Capacitance.........................................61  
Figure 5.73 ZSPM1504 with Comp2; 5A to 15A Load Step; and Max. Capacitance........................................61  
Figure 5.74 ZSPM1504 with Comp2; 15A to 5A Load Step; and Max. Capacitance........................................61  
Figure 5.75 Open Loop Bode Plots for ZSPM1504 with Comp2....................................................................... 61  
Figure 5.76 ZSPM1504 with Comp3; 5A to 15A Load Step; and Min. Capacitance.........................................62  
Figure 5.77 ZSPM1504 with Comp3; 15A to 5A Load Step; and Min. Capacitance.........................................62  
Figure 5.78 ZSPM1504 with Comp3; 5A to 15A Load Step; and Max. Capacitance........................................62  
Figure 5.79 ZSPM1504 with Comp3; 15A to 5A Load Step; and Max. Capacitance........................................62  
© 2016 Integrated Device Technology, Inc.  
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ZSPM15xx Datasheet  
Figure 5.80 Open Loop Bode Plots for ZSPM1504 with Comp3....................................................................... 62  
Figure 5.81 ZSPM1505 with Comp0; 5A to 15A Load Step; and Min. Capacitance.........................................63  
Figure 5.82 ZSPM1505 with Comp0; 15A to 5A Load Step; and Min. Capacitance.........................................63  
Figure 5.83 ZSPM1505 with Comp0; 5A to 15A Load Step; and Max. Capacitance........................................63  
Figure 5.84 ZSPM1505 with Comp0; 15A to 5A Load Step; and Max. Capacitance........................................63  
Figure 5.85 Open Loop Bode Plots for ZSPM1505 with Comp0....................................................................... 63  
Figure 5.86 ZSPM1505 with Comp1; 5A to 15A Load Step; and Min. Capacitance.........................................64  
Figure 5.87 ZSPM1505 with Comp1; 15A to 5A Load Step; and Min. Capacitance.........................................64  
Figure 5.88 ZSPM1505 with Comp1; 5A to 15A Load Step; and Max. Capacitance........................................64  
Figure 5.89 ZSPM1505 with Comp1; 15A to 5A Load Step; and Max. Capacitance........................................64  
Figure 5.90 Open Loop Bode Plots for ZSPM1505 with Comp1....................................................................... 64  
Figure 5.91 ZSPM1505 with Comp2; 5A to 15A Load Step; and Min. Capacitance.........................................65  
Figure 5.92 ZSPM1505 with Comp2; 15A to 5A Load Step; and Min. Capacitance.........................................65  
Figure 5.93 ZSPM1505 with Comp2; 5A to 15A Load Step; and Max. Capacitance........................................65  
Figure 5.94 ZSPM1505 with Comp2; 15A to 5A Load Step; and Max. Capacitance........................................65  
Figure 5.95 Open Loop Bode Plots for ZSPM1505 with Comp2....................................................................... 65  
Figure 5.96 ZSPM1505 with Comp3; 5A to 15A Load Step; and Min. Capacitance.........................................66  
Figure 5.97 ZSPM1505 with Comp3; 15A to 5A Load Step; and Min. Capacitance.........................................66  
Figure 5.98 ZSPM1505 with Comp3; 5A to 15A Load Step; and Max. Capacitance........................................66  
Figure 5.99 ZSPM1505 with Comp3; 15A to 5A Load Step; and Max. Capacitance........................................66  
Figure 5.100 Open Loop Bode Plots for ZSPM1505 with Comp3....................................................................... 66  
Figure 5.101 ZSPM1506 with Comp0; 5A to 15A Load Step; and Min. Capacitance.........................................67  
Figure 5.102 ZSPM1506 with Comp0; 15A to 5A Load Step; and Min. Capacitance.........................................67  
Figure 5.103 ZSPM1506 with Comp0; 5A to 15A Load Step; and Max. Capacitance........................................67  
Figure 5.104 ZSPM1506 with Comp0; 15A to 5A Load Step; and Max. Capacitance........................................67  
Figure 5.105 Open Loop Bode Plots for ZSPM1506 with Comp0....................................................................... 67  
Figure 5.106 ZSPM1506 with Comp1; 5A to 15A Load Step; and Min. Capacitance.........................................68  
Figure 5.107 ZSPM1506 with Comp1; 15A to 5A Load Step; and Min. Capacitance.........................................68  
Figure 5.108 ZSPM1506 with Comp1; 5A to 15A Load Step; and Max. Capacitance........................................68  
Figure 5.109 ZSPM1506 with Comp1; 15A to 5A Load Step; and Max. Capacitance........................................68  
Figure 5.110 Open Loop Bode Plots for ZSPM1506 with Comp1....................................................................... 68  
Figure 5.111 ZSPM1506 with Comp2; 5A to 15A Load Step; and Min. Capacitance.........................................69  
Figure 5.112 ZSPM1506 with Comp2; 15A to 5A Load Step; and Min. Capacitance.........................................69  
Figure 5.113 ZSPM1506 with Comp2; 5A to 15A Load Step; and Max. Capacitance........................................69  
Figure 5.114 ZSPM1506 with Comp2; 15A to 5A Load Step; and Max. Capacitance........................................69  
Figure 5.115 Open Loop Bode Plots for ZSPM1506 with Comp2....................................................................... 69  
Figure 5.116 ZSPM1506 with Comp3; 5A to 15A Load Step; and Min. Capacitance.........................................70  
Figure 5.117 ZSPM1506 with Comp3; 15A to 5A Load Step; and Min. Capacitance.........................................70  
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ZSPM15xx Datasheet  
Figure 5.118 ZSPM1506 with Comp3; 5A to 15A Load Step; and Max. Capacitance........................................70  
Figure 5.119 ZSPM1506 with Comp3; 15A to 5A Load Step; and Max. Capacitance........................................70  
Figure 5.120 Open Loop Bode Plots for ZSPM1506 with Comp3....................................................................... 70  
Figure 5.121 ZSPM1507 with Comp0; 5 to 15A Load Step; and Min. Capacitance ...........................................71  
Figure 5.122 ZSPM1507 with Comp0; 15 to 5A Load Step; and Min. Capacitance ...........................................71  
Figure 5.123 ZSPM1507 with Comp0; 5 to 15A Load Step; and Max. Capacitance ..........................................71  
Figure 5.124 ZSPM1507 with Comp0; 15 to 5A Load Step; and Max. Capacitance ..........................................71  
Figure 5.125 Open Loop Bode Plots for ZSPM1507 with Comp0....................................................................... 71  
Figure 5.126 ZSPM1507 with Comp1; 5 to 15A Load Step; and Min. Capacitance ...........................................72  
Figure 5.127 ZSPM1507 with Comp1; 15 to 5A Load Step; and Min. Capacitance ...........................................72  
Figure 5.128 ZSPM1507 with Comp1; 5 to 15A Load Step; and Max. Capacitance ..........................................72  
Figure 5.129 ZSPM1507 with Comp1; 15 to 5A Load Step; and Max. Capacitance ..........................................72  
Figure 5.130 Open Loop Bode Plots for ZSPM1507 with Comp1....................................................................... 72  
Figure 5.131 ZSPM1507 with Comp2; 5 to 15A Load Step; and Min. Capacitance ...........................................73  
Figure 5.132 ZSPM1507 with Comp2; 15 to 5A Load Step; and Min. Capacitance ...........................................73  
Figure 5.133 ZSPM1507 with Comp2; 5 to 15A Load Step; and Max. Capacitance ..........................................73  
Figure 5.134 ZSPM1507 with Comp2; 15 to 5A Load Step; and Max. Capacitance ..........................................73  
Figure 5.135 Open Loop Bode Plots for ZSPM1507 with Comp2....................................................................... 73  
Figure 5.136 ZSPM1507 with Comp3; 5 to 15A Load Step; and Min. Capacitance ...........................................74  
Figure 5.137 ZSPM1507 with Comp3; 15 to 5A Load Step; and Min. Capacitance ...........................................74  
Figure 5.138 ZSPM1507 with Comp3; 5 to 15A Load Step; and Max. Capacitance ..........................................74  
Figure 5.139 ZSPM1507 with Comp3; 15 to 5A Load Step; and Max. Capacitance ..........................................74  
Figure 5.140 Open Loop Bode Plots for ZSPM1507 with Comp3....................................................................... 74  
Figure 5.141 ZSPM1508 with Comp0; 5A to 10A Load Step; and Min. Capacitance.........................................75  
Figure 5.142 ZSPM1508 with Comp0; 10A to 5A Load Step; and Min. Capacitance.........................................75  
Figure 5.143 ZSPM1508 with Comp0; 5A to 10A Load Step; and Max. Capacitance........................................75  
Figure 5.144 ZSPM1508 with Comp0; 10A to 5A Load Step; and Max. Capacitance........................................75  
Figure 5.145 Open Loop Bode Plots for ZSPM1508 with Comp0....................................................................... 75  
Figure 5.146 ZSPM1508 with Comp1; 5A to 10A Load Step; and Min. Capacitance.........................................76  
Figure 5.147 ZSPM1508 with Comp1; 10A to 5A Load Step; and Min. Capacitance.........................................76  
Figure 5.148 ZSPM1508 with Comp1; 5A to 10A Load Step; and Max. Capacitance........................................76  
Figure 5.149 ZSPM1508 with Comp1; 10A to 5A Load Step; and Max. Capacitance........................................76  
Figure 5.150 Open Loop Bode Plots for ZSPM1508 with Comp1....................................................................... 76  
Figure 5.151 ZSPM1508 with Comp2; 5A to 10A Load Step; and Min. Capacitance.........................................77  
Figure 5.152 ZSPM1508 with Comp2; 10A to 5A Load Step; and Min. Capacitance.........................................77  
Figure 5.153 ZSPM1508 with Comp2; 5A to 10A Load Step; and Max. Capacitance........................................77  
Figure 5.154 ZSPM1508 with Comp2; 10A to 5A Load Step; and Max. Capacitance........................................77  
Figure 5.155 Open Loop Bode Plots for ZSPM1508 with Comp2....................................................................... 77  
Figure 5.156 ZSPM1508 with Comp3; 5A to 10A Load Step; and Min. Capacitance.........................................78  
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ZSPM15xx Datasheet  
Figure 5.157 ZSPM1508 with Comp3; 10A to 5A Load Step; and Min. Capacitance.........................................78  
Figure 5.158 ZSPM1508 with Comp3; 5A to 10A Load Step; and Max. Capacitance........................................78  
Figure 5.159 ZSPM1508 with Comp3; 10A to 5A Load Step; and Max. Capacitance........................................78  
Figure 5.160 Open Loop Bode Plots for ZSPM1508 with Comp3....................................................................... 78  
Figure 5.161 ZSPM1509 with Comp0; 3A to 8A Load Step; and Min. Capacitance...........................................79  
Figure 5.162 ZSPM1509 with Comp0; 8A to 3A Load Step; and Min. Capacitance...........................................79  
Figure 5.163 ZSPM1509 with Comp0; 3A to 8A Load Step; and Max. Capacitance..........................................79  
Figure 5.164 ZSPM1509 with Comp0; 8A to 3A Load Step; and Max. Capacitance..........................................79  
Figure 5.165 Open Loop Bode Plots for ZSPM1509 with Comp0....................................................................... 79  
Figure 5.166 ZSPM1509 with Comp1; 3A to 8A Load Step; and Min. Capacitance...........................................80  
Figure 5.167 ZSPM1509 with Comp1; 8A to 3A Load Step; and Min. Capacitance...........................................80  
Figure 5.168 ZSPM1509 with Comp1; 3A to 8A Load Step; and Max. Capacitance..........................................80  
Figure 5.169 ZSPM1509 with Comp1; 8A to 3A Load Step; and Max. Capacitance..........................................80  
Figure 5.170 Open Loop Bode Plots for ZSPM1509 with Comp1....................................................................... 80  
Figure 5.171 ZSPM1509 with Comp2; 3A to 8A Load Step; and Min. Capacitance...........................................81  
Figure 5.172 ZSPM1509 with Comp2; 8A to 3A Load Step; and Min. Capacitance...........................................81  
Figure 5.173 ZSPM1509 with Comp2; 3A to 8A Load Step; and Max. Capacitance..........................................81  
Figure 5.174 ZSPM1509 with Comp2; 8A to 3A Load Step; and Max. Capacitance..........................................81  
Figure 5.175 Open Loop Bode Plots for ZSPM1509 with Comp2....................................................................... 81  
Figure 5.176 ZSPM1509 with Comp3; 3A to 8A Load Step; and Min. Capacitance...........................................82  
Figure 5.177 ZSPM1509 with Comp3; 8A to 3A Load Step; and Min. Capacitance...........................................82  
Figure 5.178 ZSPM1509 with Comp3; 3A to 8A Load Step; and Max. Capacitance..........................................82  
Figure 5.179 ZSPM1509 with Comp3; 8A to 3A Load Step; and Max. Capacitance..........................................82  
Figure 5.180 Open Loop Bode Plots for ZSPM1509 with Comp3....................................................................... 82  
Figure 5.181 ZSPM1511 with Comp0; 5A to 15A Load Step; and Min. Capacitance.........................................83  
Figure 5.182 ZSPM1511 with Comp0; 15A to 5A Load Step; and Min. Capacitance.........................................83  
Figure 5.183 ZSPM1511 with Comp0; 5A to 15A Load Step; and Max. Capacitance........................................83  
Figure 5.184 ZSPM1511 with Comp0; 15A to 5A Load Step; and Max. Capacitance........................................83  
Figure 5.185 Open Loop Bode Plots for ZSPM1511 with Comp0....................................................................... 83  
Figure 5.186 ZSPM1511 with Comp1; 5A to 15A Load Step; and Min. Capacitance.........................................84  
Figure 5.187 ZSPM1511 with Comp1; 15A to 5A Load Step; and Min. Capacitance.........................................84  
Figure 5.188 ZSPM1511 with Comp1; 5A to 15A Load Step; and Max. Capacitance........................................84  
Figure 5.189 ZSPM1511 with Comp1; 15A to 5A Load Step; and Max. Capacitance........................................84  
Figure 5.190 Open Loop Bode Plots for ZSPM1511 with Comp1....................................................................... 84  
Figure 5.191 ZSPM1511 with Comp2; 5A to 15A Load Step; and Min. Capacitance.........................................85  
Figure 5.192 ZSPM1511 with Comp2; 15A to 5A Load Step; and Min. Capacitance.........................................85  
Figure 5.193 ZSPM1511 with Comp2; 5A to 15A Load Step; and Max. Capacitance........................................85  
Figure 5.194 ZSPM1511 with Comp2; 15A to 5A Load Step; and Max. Capacitance........................................85  
Figure 5.195 Open Loop Bode Plots for ZSPM1511 with Comp2....................................................................... 85  
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January 27, 2016  
ZSPM15xx Datasheet  
Figure 5.196 ZSPM1511 with Comp3; 5A to 15A Load Step; and Min. Capacitance.........................................86  
Figure 5.197 ZSPM1511 with Comp3; 15A to 5A Load Step; and Min. Capacitance.........................................86  
Figure 5.198 ZSPM1511 with Comp3; 5A to 15A Load Step; and Max. Capacitance........................................86  
Figure 5.199 ZSPM1511 with Comp3; 15A to 5A Load Step; and Max. Capacitance........................................86  
Figure 5.200 Open Loop Bode Plots for ZSPM1511 with Comp3....................................................................... 86  
Figure 5.201 ZSPM1512 with Comp0; 5A to 15A Load Step; and Min. Capacitance.........................................87  
Figure 5.202 ZSPM1512 with Comp0; 15A to 5A Load Step; and Min. Capacitance.........................................87  
Figure 5.203 ZSPM1512 with Comp0; 5A to 15A Load Step; and Max. Capacitance........................................87  
Figure 5.204 ZSPM1512 with Comp0; 15A to 5A Load Step; and Max. Capacitance........................................87  
Figure 5.205 Open Loop Bode Plots for ZSPM1512 with Comp0....................................................................... 87  
Figure 5.206 ZSPM1512 with Comp1; 5A to 15A Load Step; and Min. Capacitance.........................................88  
Figure 5.207 ZSPM1512 with Comp1; 15A to 5A Load Step; and Min. Capacitance.........................................88  
Figure 5.208 ZSPM1512 with Comp1; 5A to 15A Load Step; and Max. Capacitance........................................88  
Figure 5.209 ZSPM1512 with Comp1; 15A to 5A Load Step; and Max. Capacitance........................................88  
Figure 5.210 Open Loop Bode Plots for ZSPM1512 with Comp1....................................................................... 88  
Figure 5.211 ZSPM1512 with Comp2; 5A to 15A Load Step; and Min. Capacitance.........................................89  
Figure 5.212 ZSPM1512 with Comp2; 15A to 5A Load Step; and Min. Capacitance.........................................89  
Figure 5.213 ZSPM1512 with Comp2; 5A to 15A Load Step; and Max. Capacitance........................................89  
Figure 5.214 ZSPM1512 with Comp2; 15A to 5A Load Step; and Max. Capacitance........................................89  
Figure 5.215 Open Loop Bode Plots for ZSPM1512 with Comp2....................................................................... 89  
Figure 5.216 ZSPM1512 with Comp3; 5A to 15A Load Step; and Min. Capacitance.........................................90  
Figure 5.217 ZSPM1512 with Comp3; 15A to 5A Load Step; and Min. Capacitance.........................................90  
Figure 5.218 ZSPM1512 with Comp3; 5A to 15A Load Step; and Max. Capacitance........................................90  
Figure 5.219 ZSPM1512 with Comp3; 15A to 5A Load Step; and Max. Capacitance........................................90  
Figure 5.220 Open Loop Bode Plots for ZSPM1512 with Comp3....................................................................... 90  
Figure 5.221 ZSPM1513 with Comp0; 5A to 15A Load Step; and Min. Capacitance.........................................91  
Figure 5.222 ZSPM1513 with Comp0; 15A to 5A Load Step; and Min. Capacitance.........................................91  
Figure 5.223 ZSPM1513 with Comp0; 5A to 15A Load Step; and Max. Capacitance........................................91  
Figure 5.224 ZSPM1513 with Comp0; 15A to 5A Load Step; and Max. Capacitance........................................91  
Figure 5.225 Open Loop Bode Plots for ZSPM1513 with Comp0....................................................................... 91  
Figure 5.226 ZSPM1513 with Comp1; 5A to 15A Load Step; and Min. Capacitance.........................................92  
Figure 5.227 ZSPM1513 with Comp1; 15A to 5A Load Step; and Min. Capacitance.........................................92  
Figure 5.228 ZSPM1513 with Comp1; 5 to 15A Load Step; and Max. Capacitance ..........................................92  
Figure 5.229 ZSPM1513 with Comp1; 15 to 5A Load Step; and Max. Capacitance ..........................................92  
Figure 5.230 Open Loop Bode Plots for ZSPM1513 with Comp1....................................................................... 92  
Figure 5.231 ZSPM1513 with Comp2; 5A to 15A Load Step; and Min. Capacitance.........................................93  
Figure 5.232 ZSPM1513 with Comp2; 15A to 5A Load Step; and Min. Capacitance.........................................93  
Figure 5.233 ZSPM1513 with Comp2; 5A to 15A Load Step; and Max. Capacitance........................................93  
Figure 5.234 ZSPM1513 with Comp2; 15A to 5A Load Step; and Max. Capacitance........................................93  
Figure 5.235 Open Loop Bode Plots for ZSPM1513 with Comp2....................................................................... 93  
Figure 5.236 ZSPM1513 with Comp3; 5A to 15A Load Step; and Min. Capacitance.........................................94  
Figure 5.237 ZSPM1513 with Comp3; 15A to 5A Load Step; and Min. Capacitance.........................................94  
© 2016 Integrated Device Technology, Inc.  
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ZSPM15xx Datasheet  
Figure 5.238 ZSPM1513 with Comp3; 5A to 15A Load Step; and Max. Capacitance........................................94  
Figure 5.239 ZSPM1513 with Comp3; 15A to 5A Load Step; and Max. Capacitance........................................94  
Figure 5.240 Open Loop Bode Plots for ZSPM1513 with Comp3....................................................................... 94  
Figure 5.241 Typical Efficiency Curves: ZSPM1502 with ZSPM9000, ZSPM9015, and ZSPM9060 DrMOS  
(VIN= 12V; Vout = 1.0V).................................................................................................................. 95  
Figure 5.242 Typical Efficiency Curves: ZSPM9000 DrMOS with ZSPM1504, ZSPM1505, and ZSPM1506  
(VIN = 12V)...................................................................................................................................... 96  
Figure 5.243 Typical Efficiency Curves: ZSPM9000 and ZSPM9060 DrMOS with ZSPM1508 and ZSPM150997  
Figure 5.244 Typical Efficiency Curves: ZSPM9000 and ZSPM9060 DrMOS with ZSPM1511, ZSPM1512,  
and ZSPM1513 .............................................................................................................................. 98  
Figure 6.1  
24-Pin QFN Package Drawing....................................................................................................... 99  
© 2016 Integrated Device Technology, Inc.  
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ZSPM15xx Datasheet  
List of Tables  
Table 2.1  
Table 3.1  
Table 4.1  
Table 4.2  
Table 4.3  
Table 4.4  
Table 4.5  
Table 4.6  
Table 4.7  
Table 4.8  
Table 4.9  
ZSPM15xx Pin Descriptions........................................................................................................... 27  
Fault Configuration Overview......................................................................................................... 32  
Passive Component Values for the Application Circuits................................................................35  
Passive Components for the ZSPM1501, ZSPM1502, and ZSPM1503 .......................................36  
Passive Components for the ZSPM1504, ZSPM1505, and ZSPM1506 .......................................36  
Passive Components for the ZSPM1507....................................................................................... 37  
Passive Components for the ZSPM1508 and ZSPM1509.............................................................37  
Passive Components for the ZSPM1511, ZSPM1512, and ZSPM1513 .......................................37  
ZSPM15xx – OCP Pin Strap Resistor Selection............................................................................ 40  
Recommended Output Capacitor Ranges..................................................................................... 41  
Compensator and VOUT Slew Rate Pin Strap Resistor Selection for the ZSPM1501 to  
ZSPM1506 and the ZSPM1511 to ZSPM1513.............................................................................. 42  
Table 4.10  
Table 4.11  
Table 4.12  
Compensator and VOUT Slew Rate Pin Strap Resistor Selection for the ZSPM1507..................43  
Compensator and VOUT Slew Rate Pin Strap Resistor Selection for the ZSPM1508..................44  
Compensator and VOUT Slew Rate Pin Strap Resistor Selection for the ZSPM1509..................45  
© 2016 Integrated Device Technology, Inc.  
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ZSPM15xx Datasheet  
1
IC Characteristics  
Note: The absolute maximum ratings are stress ratings only. The ZSPM15xx might not function or be operable  
above the recommended operating conditions. Stresses exceeding the absolute maximum ratings might also  
damage the device. In addition, extended exposure to stresses above the recommended operating conditions  
might affect device reliability. IDT does not recommend designing to the “Absolute Maximum Ratings.”  
1.1. Absolute Maximum Ratings  
PARAMETER  
Supply voltages  
PINS  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
5V supply voltage  
Maximum slew rate  
3.3V supply voltage  
1.8V supply voltage  
VDD50  
dV/dt < 0.15V/µs  
-0.3  
5.5  
V
V/µs  
V
0.15  
3.6  
VDD33  
-0.3  
-0.3  
VDD18  
2.0  
V
AVDD18  
Digital pins  
Digital I/O pins  
THSHDN  
CONTROL  
PGOOD  
DRVEN  
PWM  
-0.3  
5.5  
V
Analog pins  
Current sensing  
ISNSP,  
ISNSN  
-0.3  
-0.3  
-0.3  
5.5  
2.0  
2.0  
V
V
V
Voltage feedback  
VFBP  
VFBN  
All other analog pins  
ADCVREF  
VREFP  
TEMP  
VIN  
CONFIG0  
CONFIG1  
Ambient Conditions  
Junction temperature TJ  
Storage temperature  
125  
°C  
°C  
V
-40  
150  
Electrostatic discharge –  
Human Body Model  
ESD testing is  
+/-2k  
performed according to  
the respective JESD22  
JEDEC standard.  
Electrostatic discharge –  
Charge Device Model  
ESD testing is  
+/- 500  
V
performed according to  
the respective JESD22  
JEDEC standard.  
© 2016 Integrated Device Technology, Inc.  
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ZSPM15xx Datasheet  
1.2. Recommended Operating Conditions  
PARAMETER  
Ambient conditions  
Operation temperature  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
TJ  
-40  
125  
°C  
Thermal resistance junction to  
ambient  
40  
K/W  
θJA  
1.3. Electrical Parameters  
PARAMETER  
Supply voltages  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
5.25  
3.6  
UNITS  
5V supply voltage  
5V supply current  
3.3V supply voltage  
VVDD50  
IVDD50  
4.75  
3.0  
5.0  
23  
V
mA  
V
VDD50=5.0V  
VVDD33  
Supply for both the VDD33  
and VDD50 pins if the internal  
3.3V regulator is not used.  
3.3  
3.3V supply current  
IVDD33  
VDD50=VDD33=3.3V  
23  
3.3  
mA  
Internally generated supply voltages  
3.3V supply voltage  
3.3V output current  
1.8V supply voltages  
VVDD33  
VDD50=5.0V  
VDD50=5.0V  
VDD50=5.0V  
3.0  
3.6  
2.0  
V
mA  
V
IVDD33  
VAVDD18  
VVDD18  
1.72  
1.80  
1.98  
1.8V output current  
0
mA  
Power-on reset (POR)  
Power-on reset threshold – on  
Power-on reset threshold – off  
VTH_POR_ON  
VTH_POR_OFF  
2.8  
2.6  
5
V
V
Initialization period /  
internal startup time  
ms  
Digital IO pins (CONTROL, PGOOD, DRVEN, THSHDN)  
Input high voltage  
Input low voltage  
VDD33=3.3V  
VDD33=3.3V  
VDD33=3.3V  
2.0  
2.4  
V
V
0.8  
VDD33  
0.5  
Output high voltage  
Output low voltage  
Input leakage current  
Output current – high  
Output current – low  
V
V
±1.0  
2.0  
µA  
mA  
mA  
2.0  
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ZSPM15xx Datasheet  
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
Digital IO pins with tri-state capability (PWM)  
Output high voltage  
Output low voltage  
Output current – high  
Output current – low  
Tri-state leakage current  
Output voltage  
VDD33=3.3V  
2.4  
VDD33  
0.5  
V
V
2.0  
mA  
mA  
µA  
2.0  
±1.0  
Output voltage  
The output voltage set-point is  
determined by product code.  
(Refer to  
section 1.4)  
Set-point accuracy  
VOUT=1.4V  
1
%
Output voltage sequencing (see Figure 3.2)  
Turn-on delay -  
tON_DELAY  
tON_RISE  
1
ms  
Turn-on rise time (slew rate)  
The rise time is configurable  
via pin strapping.  
(Refer to section 4.8)  
Turn-on timeout  
Turn-off delay  
tON_MAX  
10  
0
ms  
ms  
tOFF_DELAY  
tOFF_FALL  
tOFF_MAX  
Turn-off fall time  
Turn-off timeout  
Power good turn-on level  
6
10  
ms  
500  
ms  
The power good threshold is a  
percentage of the nominal  
output voltage (VOUT_NOM),  
which is preconfigured for the  
ZSPM15xx part number (see  
section 1.4).  
95%  
VOUT_NOM  
Power good turn-off level  
90%  
VOUT_NOM  
Inductor current measurement  
Common mode voltage across  
ISNSP and ISNSN pins  
0
5.0  
V
mV  
%
Differential voltage range  
across ISNSP and ISNSN pins  
±100  
Accuracy  
5
Over-current protection  
threshold  
The over-current protection  
threshold is configurable via  
pin strapping  
(Refer to section 4.7)  
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ZSPM15xx Datasheet  
PARAMETER  
Digital pulse width modulator  
Switching frequency  
Resolution  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
fSW  
500  
163  
2.0  
kHz  
ps  
%
Frequency accuracy  
Duty cycle  
2.5  
100  
%
External temperature measurement (note: only PN-junction sense elements are supported)  
Offset voltage at 25°C  
Temperature coefficient  
583  
-2.2  
60  
mV  
mV/K  
µA  
Bias currents for external  
temperature sensing  
Accuracy of measurement  
±5.0  
105  
K
Over-temperature threshold  
Internal temperature measurement  
Accuracy of measurement  
°C  
±5.0  
95  
K
Over-temperature threshold  
°C  
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ZSPM15xx Datasheet  
1.4. Device-Specific System Parameters  
1.4.1.  
ZSPM1501  
Note: In the following table, DNP (“do not place”) indicates the component is not used in the application circuit.  
Refer to Figure 2.1 for the components referenced below.  
PARAMETER  
System power parameters  
Switching frequency  
Input voltage  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
fSW  
500  
kHz  
V
10.8  
13.2  
Nominal output voltage  
VOUT_NOM R5=1.0k, R4=DNP  
0.85  
V
Output voltage under-voltage  
lockout threshold  
0.764  
V
Output voltage over-voltage  
lockout threshold  
1.019  
13.80  
9.60  
V
V
V
Input voltage over-voltage lockout  
threshold  
R9=9.1k, R8=1.0kΩ  
R9=9.1k, R8=1.0kΩ  
Input voltage under-voltage  
lockout threshold  
Application circuit  
Optimal output inductance: L1  
Feedback divider: R5  
Feedback divider: R4  
LOUT  
330  
1.0  
nH  
kΩ  
DNP  
1.4.2.  
ZSPM1502  
Note: In the following table, DNP (“do not place”) indicates the component is not used in the application circuit.  
Refer to Figure 2.1 for the components referenced below.  
PARAMETER  
System power parameters  
Switching frequency  
Input voltage  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
fSW  
500  
kHz  
V
10.8  
13.2  
Nominal output voltage  
VOUT_NOM R5=1.0k, R4=DNP  
1.0  
V
Output voltage under-voltage  
lockout threshold  
0.90  
V
Output voltage over-voltage  
lockout threshold  
1.20  
13.80  
9.60  
V
V
V
Input voltage over-voltage lockout  
threshold  
R9=9.1k, R8=1.0kΩ  
R9=9.1k, R8=1.0kΩ  
Input voltage under-voltage  
lockout threshold  
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ZSPM15xx Datasheet  
PARAMETER  
Application circuit  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
Optimal output inductance – L1  
Feedback divider – R5  
LOUT  
330  
1.0  
nH  
kΩ  
Feedback divider – R4  
DNP  
1.4.3.  
ZSPM1503  
Note: In the following table, DNP (“do not place”) indicates the component is not used in the application circuit.  
Refer to Figure 2.1 for the components referenced below.  
PARAMETER  
System power parameters  
Switching frequency  
Input voltage  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
fSW  
500  
kHz  
V
10.8  
13.2  
Nominal output voltage  
VOUT_NOM R5=1.0k, R4=DNP  
1.20  
1.08  
V
Output voltage under-voltage  
lockout threshold  
V
Output voltage over-voltage  
lockout threshold  
1.44  
13.80  
9.60  
V
V
V
Input voltage over-voltage lockout  
threshold  
R9=9.1k, R8=1.0kΩ  
R9=9.1k, R8=1.0kΩ  
Input voltage under-voltage  
lockout threshold  
Application circuit  
Optimal output inductance – L1  
Feedback divider – R5  
Feedback divider – R4  
LOUT  
330  
1.0  
nH  
kΩ  
DNP  
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ZSPM15xx Datasheet  
1.4.4.  
ZSPM1504  
Note: Refer to Figure 2.1 for the components referenced below.  
PARAMETER  
System power parameters  
Switching frequency  
Input voltage  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
fSW  
500  
kHz  
V
10.8  
13.2  
Nominal output voltage  
VOUT_NOM R5=750, R4=1.0kΩ  
1.5  
V
Output voltage under-voltage  
lockout threshold  
1.35  
V
Output voltage over-voltage  
lockout threshold  
1.80  
13.80  
9.60  
V
V
V
Input voltage over-voltage lockout  
threshold  
R9=9.1k, R8=1.0kΩ  
R9=9.1k, R8=1.0kΩ  
Input voltage under-voltage  
lockout threshold  
Application circuit  
Optimal output inductance – L1  
Feedback divider – R5  
Feedback divider – R4  
LOUT  
470  
750  
1.0  
nH  
kΩ  
1.4.5.  
ZSPM1505  
Note: Refer to Figure 2.1 for the components referenced below.  
PARAMETER  
System power parameters  
Switching frequency  
Input voltage  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
fSW  
500  
kHz  
V
10.8  
13.2  
Nominal output voltage  
VOUT_NOM R5=750, R4=1.0kΩ  
1.8  
V
Output voltage under-voltage  
lockout threshold  
1.62  
V
Output voltage over-voltage  
lockout threshold  
2.16  
13.80  
9.60  
V
V
V
Input voltage over-voltage lockout  
threshold  
R9=9.1k, R8=1.0kΩ  
R9=9.1k, R8=1.0kΩ  
Input voltage under-voltage  
lockout threshold  
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ZSPM15xx Datasheet  
PARAMETER  
Application circuit  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
Optimal output inductance – L1  
Feedback divider – R5  
LOUT  
470  
750  
1.0  
nH  
Feedback divider – R4  
kΩ  
1.4.6.  
ZSPM1506  
Note: Refer to Figure 2.1 for the components referenced below.  
PARAMETER  
System power parameters  
Switching frequency  
Input voltage  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
fSW  
500  
kHz  
V
10.8  
13.2  
Nominal output voltage  
VOUT_NOM R5=750, R4=1.0kΩ  
2.0  
V
Output voltage under-voltage  
lockout threshold  
1.80  
V
Output voltage over-voltage  
lockout threshold  
2.40  
13.80  
9.60  
V
V
V
Input voltage over-voltage lockout  
threshold  
R9=9.1k, R8=1.0kΩ  
R9=9.1k, R8=1.0kΩ  
Input voltage under-voltage  
lockout threshold  
Application circuit  
Optimal output inductance – L1  
Feedback divider – R5  
Feedback divider – R4  
LOUT  
470  
750  
1.0  
nH  
kΩ  
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ZSPM15xx Datasheet  
1.4.7.  
ZSPM1507  
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
System power parameters  
Switching frequency  
Input voltage  
fSW  
500  
12  
kHz  
V
10.8  
13.2  
Nominal output voltage  
VOUT_NOM R5=1.0k, R4=1.0kΩ  
2.5V  
2.25  
V
Output voltage under-voltage  
lockout threshold  
V
Output voltage over-voltage  
lockout threshold  
3.0  
13.8  
9.6  
V
V
V
Input voltage over-voltage lockout  
threshold  
R9=9.1k, R8=1.0kΩ  
R9=9.1k, R8=1.0kΩ  
Input voltage under-voltage  
lockout threshold  
Application circuit  
Optimal output inductance: L1  
Feedback divider: R5  
Feedback divider: R4  
LOUT  
1000  
1.0  
nH  
kΩ  
kΩ  
1.0  
1.4.8.  
ZSPM1508  
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
System power parameters  
Switching frequency  
Input voltage  
fSW  
500  
kHz  
V
10.8  
13.2  
Nominal output voltage  
VOUT_NOM R5=3.3k, R4=1.0kΩ  
3.3  
V
Output voltage under-voltage  
lockout threshold  
2.97  
V
Output voltage over-voltage  
lockout threshold  
3.96  
13.80  
9.60  
V
V
V
Input voltage over-voltage lockout  
threshold  
R9=9.1k, R8=1.0kΩ  
R9=9.1k, R8=1.0kΩ  
Input voltage under-voltage  
lockout threshold  
Application circuit  
Optimal output inductance: L1  
Feedback divider: R5  
Feedback divider: R4  
LOUT  
2.20  
3.3  
µH  
kΩ  
kΩ  
1.0  
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ZSPM15xx Datasheet  
1.4.9.  
ZSPM1509  
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
System power parameters  
Switching frequency  
Input voltage  
fSW  
500  
kHz  
V
10.8  
13.2  
Nominal output voltage  
VOUT_NOM R5=3.3k , R4=1.0kΩ  
5.0  
V
Output voltage under-voltage  
lockout threshold  
4.50  
V
Output voltage over-voltage  
lockout threshold  
5.50  
13.80  
9.60  
V
V
V
Input voltage over-voltage lockout  
threshold  
R9=9.1k, R8=1.0kΩ  
R9=9.1k, R8=1.0kΩ  
Input voltage under-voltage  
lockout threshold  
Application circuit  
Optimal output inductance: L1  
Feedback divider: R5  
Feedback divider: R4  
LOUT  
2.20  
3.3  
µH  
kΩ  
kΩ  
1.0  
1.4.10. ZSPM1511  
Note: In the following table, DNP (“do not place”) indicates the component is not used in the application circuit.  
PARAMETER  
System power parameters  
Switching frequency  
Input voltage  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
fSW  
500  
kHz  
V
10.8  
13.2  
Nominal output voltage  
VOUT_NOM R5=1.0k , R4=DNP  
0.85  
V
Output voltage under-voltage  
lockout threshold  
0.764  
V
Output voltage over-voltage  
lockout threshold  
1.019  
13.80  
9.60  
V
V
V
Input voltage over-voltage lockout  
threshold  
R9=9.1 k, R8=1.0kΩ  
R9=9.1 k, R8=1.0kΩ  
Input voltage under-voltage  
lockout threshold  
Application circuit  
Optimal output inductance – L1  
Feedback divider – R5  
Feedback divider – R4  
LOUT  
680  
1.0  
ƞH  
kΩ  
DNP  
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ZSPM15xx Datasheet  
1.4.11. ZSPM1512  
Note: In the following table, DNP (“do not place”) indicates the component is not used in the application circuit.  
PARAMETER  
System power parameters  
Switching frequency  
Input voltage  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
fSW  
500  
kHz  
V
10.8  
13.2  
Nominal output voltage  
VOUT_NOM R5=1.0k , R4=DNP  
1.0  
V
Output voltage under-voltage  
lockout threshold  
0.90  
V
Output voltage over-voltage  
lockout threshold  
1.20  
13.80  
9.60  
V
V
V
Input voltage over-voltage  
lockout threshold  
R9=9.1 k, R8=1.0kΩ  
R9=9.1 k, R8=1.0kΩ  
Input voltage under-voltage  
lockout threshold  
Application circuit  
Optimal output inductance – L1  
Feedback divider – R5  
Feedback divider – R4  
LOUT  
680  
1.0  
ƞH  
kΩ  
kΩ  
DNP  
1.4.12. ZSPM1513  
Note: In the following table, DNP (“do not place”) indicates the component is not used in the application circuit.  
PARAMETER  
System power parameters  
Switching frequency  
Input voltage  
SYMBOL  
CONDITIONS  
MIN  
TYPICAL  
MAX  
UNITS  
fSW  
500  
kHz  
V
10.8  
13.2  
Nominal output voltage  
VOUT_NOM R5=1.0k , R4=DNP  
1.20  
1.08  
V
Output voltage under-voltage  
lockout threshold  
V
Output voltage over-voltage  
lockout threshold  
1.44  
13.80  
9.60  
V
V
V
Input voltage over-voltage  
lockout threshold  
R9=9.1 k, R8=1.0kΩ  
R9=9.1 k, R8=1.0kΩ  
Input voltage under-voltage  
lockout threshold  
Application circuit  
Optimal output inductance – L1  
Feedback divider – R5  
Feedback divider – R4  
LOUT  
680  
1.0  
ƞH  
kΩ  
kΩ  
DNP  
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ZSPM15xx Datasheet  
2
Product Summary  
2.1. Overview  
The ZSPM15xx is a configurable true-digital single-phase PWM controller for high-current, non-isolated DC/DC  
supplies. It incorporates a pre-configured digital control loop, which is optimized for different power stages,  
bundled with output voltage sensing, average inductor current sensing, and extensive fault monitoring and  
handling options.  
Several different functional units are incorporated in the device. A dedicated digital control loop is used to provide  
fast loop response and optimal output voltage regulation. This includes output voltage sensing, average inductor  
current sensing, a digital control law, and a digital pulse-width modulator (DPWM). In parallel, a dedicated,  
configurable error handler allows fast detection of error signals and their appropriate handling. A housekeeping  
analog-to-digital converter (HKADC) ensures the reliable and efficient measurement of environmental signals,  
such as input voltage and temperature.  
An application-specific, low-power integrated microcontroller is used to control the overall system. It manages  
configuration of the various logic units according to the preprogrammed configuration look-up tables and the  
external configuration resistors connected to the CONFIG0 and CONFIG1 pins. These pin-strapping resistors  
expedite configuration of the over-current protection threshold, compensation, and output voltage slew rate. A  
high-reliability, high-temperature one-time programmable memory (OTP) is used to store configuration  
parameters. All required bias and reference voltages are internally derived from the external supply voltage.  
Figure 2.1  
Typical Application Circuit with a 5V Supply Voltage  
+5V  
VDD50  
VDD33  
VDD18  
Vin  
C1,C2,C3  
TEMP  
VIN  
C11  
GND  
AVDD18  
VREFP  
R9  
R1  
C10,  
R8  
ADCVREF  
AGND  
C4,C5,C6  
D1  
L1  
PWM  
+Vout  
PGND  
DrMOS  
DRVEN  
R7,C8  
CONFIG0 THSHDN  
CONFIG1  
Cin  
Cout  
R2,R3  
ISNSP  
ISNSN  
R6, C9  
R5  
CONTROL  
PGOOD  
VFBP  
VFBN  
R4  
C7  
ZSPM15xx  
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ZSPM15xx Datasheet  
Figure 2.2  
Block Diagram  
Current Sensing  
ISNSP  
ISNSN  
Current  
Limiting  
Average Current  
Sensing  
Digital Control Loop  
VFBP  
VFBN  
VFB  
DAC  
PWM  
FLASH  
ADC  
Adaptive Digital  
Controller  
PWM  
DRVEN  
OC Detection  
OV Detection  
OT Detection  
Sequencer  
Configurable  
Error Handler  
DAC  
Vin OV/UV  
Detection  
Bias  
Current  
Source  
Int. Temp  
Sense  
VREFP  
VREF  
Vout UV Detection  
1.8V Reg  
Analog  
AVDD18  
TEMP  
CONFIG0  
CONFIG1  
VIN  
NVM  
(OTP)  
HKADC  
CPU Core  
1.8V Reg  
Digital  
VDD18  
VDD33  
GPIO  
Clock  
Generation  
3.3V  
Reg  
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ZSPM15xx Datasheet  
2.2. Pin Description  
Table 2.1  
ZSPM15xx Pin Descriptions  
Pin  
1
Name  
AGND  
VREFP  
VFBP  
Direction  
Input  
Type  
Description  
Supply  
Supply  
Analog  
Analog  
Analog  
Analog  
Analog  
Analog  
Analog  
Analog  
Digital  
Digital  
Digital  
Digital  
Digital  
Analog Ground  
2
Output  
Input  
Reference Terminal  
3
Positive Input of Differential Feedback Voltage Sensing  
Negative Input of Differential Feedback Voltage Sensing  
Positive Input of Differential Current Sensing  
Negative Input of Differential Current Sensing  
Connection to External Temperature Sensing Element  
Power Supply Input Voltage Sensing  
Configuration Selection 0  
4
VFBN  
Input  
5
ISNSP  
ISNSN  
TEMP  
Input  
6
Input  
7
Input  
8
VIN  
Input  
9
CONFIG0  
CONFIG1  
PWM  
Input  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
PAD  
Input  
Configuration Selection 1  
Output  
Output  
Output  
Input  
High-side FET Control Signal  
DRVEN  
PGOOD  
CONTROL  
THSHDN  
N.C.  
Driver Enable Signal  
PGOOD Output (Internal Pull-Down)  
Control Input  
Input  
Thermal-Shut Down Input from Power Stage  
No connection – pin must be allowed to float  
No connection – pin must be allowed to float  
No connection – pin must be allowed to float  
Digital Ground  
N.C.  
N.C.  
GND  
Input  
Output  
Input/Output  
Input  
Supply  
Supply  
Supply  
Supply  
Supply  
Analog  
Supply  
VDD18  
VDD33  
VDD50  
AVDD18  
ADCVREF  
PAD  
Internal 1.8V Digital Supply Terminal  
3.3V Supply Voltage Terminal  
5.0V Supply Voltage Terminal  
Output  
Input  
Internal 1.8V Analog Supply Terminal  
Analog-to-Digital Converter (ADC) Reference Terminal  
Exposed PAD, Digital Ground  
Input  
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ZSPM15xx Datasheet  
2.3. Available Packages  
The ZSPM15xx is available in a 24-pin QFN package. The pin-out is shown in Figure 2.3. The mechanical  
drawing of the package can be found in Figure 6.1.  
Figure 2.3  
Pin-out QFN24 Package  
24 23  
21 20 19  
22  
1
2
3
4
5
6
AGND  
N.C.  
18  
17  
16  
15  
14  
13  
VREFP  
N.C.  
N.C.  
VFBP  
PAD  
VFBN  
ISNSP  
ISNSN  
THSHDN  
CONTROL  
PGOOD  
7
8
9
10 11 12  
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ZSPM15xx Datasheet  
3
Functional Description  
3.1. Power Supply Circuitry, Reference Decoupling, and Grounding  
The ZSPM15xx incorporates several internal power regulators in order to derive all required supply and bias  
voltages from a single external supply voltage of 5.0V. Decoupling capacitors are required at the VDD33, VDD18,  
and AVDD18 pins (1.0µF minimum; 4.7µF recommended).  
The reference voltages required for operation are generated within the ZSPM15xx. External decoupling must be  
provided between the VREFP and ADCVREF pins. Therefore, a 4.7µF capacitor is required at the VREFP pin and  
a 100nF capacitor at ADCVREF pin. The two pins should be connected with approximately 50resistance in  
order to provide sufficient decoupling between the pins.  
Three different ground connections are available on the outside of the package. These should be connected  
together to a single ground tie. A differentiation between analog and digital ground is not required.  
3.2. Reset/Start-up Behavior  
The ZSPM15xx employs an internal power-on-reset (POR) circuit to ensure proper start-up and shut-down with a  
changing supply voltage. Once the supply voltage increases above the POR threshold voltage (see section 1.3),  
the ZSPM15xx begins the internal start-up process. Upon its completion, the device is ready for operation.  
3.3. Digital Power Control  
3.3.1.  
Overview  
The digital power control loop consists of the integral parts required for the control functionality of the ZSPM15xx.  
A high-speed analog front-end is used to digitize the output voltage. A digital control core uses the acquired  
information to provide duty-cycle information to the PWM, which controls the drive signals to the power stage.  
See section 7 for the pre-configured nominal output voltages for the different part codes available in the  
ZSPM15xx family.  
3.3.2.  
Output Voltage Feedback  
The voltage feedback signal is sampled with a high-speed analog front-end. The feedback voltage is differentially  
measured and subtracted from an internal voltage reference using an error amplifier. A flash ADC is then used to  
convert the voltage into its digital equivalent. This is followed by internal digital filtering to improve the system’s  
noise rejection.  
For some applications, an external feedback divider (R4 and R5; see Figure 4.1) is required to allow for output  
voltage operations above the internal reference voltage. For details, refer to the application section 4.3.  
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ZSPM15xx Datasheet  
3.3.3.  
Digital Compensator  
The sampled output voltage is processed by a digital control loop in order to modulate the DPWM output signals  
controlling the power stage. This digital control loop works as a voltage-mode controller using a PID-type  
compensation. The basic structure of the controller is shown in Figure 3.1. The proprietary State-Law™ Control  
(SLC) concept features two parallel compensators for steady-state operation and fast transient operation. This  
allows tuning the compensators individually for the respective needs; i.e., quiet steady state and fast transient  
performance. The ZSPM15xx implements fast, reliable switching between the different compensation modes in  
order to ensure good transient performance and a quiet steady state.  
Figure 3.1  
Simplified Block Diagram of the Digital Compensation  
Coefficients  
Steady-state  
Operation  
Mode  
Transient  
Detection  
Digital PID  
Compensator  
Non-linear  
Gain  
Digital Error Signal  
Duty Cycle  
Two techniques are used to improve transient performance further:  
Tru-sample Technology™ is used to acquire fast, accurate, and continuous information about the output vol-  
tage so that the device can react quickly to any change in output voltage. Tru-sample Technology™ reduces  
phase-lag caused by sampling delays, reduces noise sensitivity, and improves transient performance.  
A nonlinear gain adjustment is used during large load transients to boost the loop gain and reduce the  
settling time.  
The control loops in the ZSPM15xx are preconfigured and can be selected using a pin-strapping option. A range  
of different output capacitors is supported. Refer to section 4.8 for detailed information.  
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ZSPM15xx Datasheet  
3.3.4.  
Power Sequencing and the CONTROL Pin  
The ZSPM15xx has a set of pre-configured power-sequencing features. The typical sequence of events is shown  
in Figure 3.2. The individual values for the delay (tON_DELAY and tOFF_DELAY), ramp time (tON_RISE and tOFF_FALL) and  
time-outs (tON_MAX and tOFF_MAX) are listed in section 1.3. Note that the device is slew-rate controlled for tON_RISE  
ramping via the pin-strapping options. The slew rate can be selected in the application circuit using the pin-strap  
options as explained in section 4.8.  
The CONTROL pin is pre-configured for active high operation.  
The ZSPM15xx features a power good (PGOOD) output, which can be used to indicate the state of the power rail.  
If the output voltage level is above the power good ON threshold, the pin is set to active, indicating a stable output  
voltage on the rail.  
Figure 3.2  
Power Sequencing  
CONTROL  
VOUT_NOM  
VPGOOD_ON  
VPGOOD_OFF  
0 V  
t
tON_DELAY  
tON_RISE  
tON_MAX  
tOFF_DELAY  
tOFF_FALL  
tOFF_MAX  
PGOOD  
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ZSPM15xx Datasheet  
3.4. Fault Monitoring and Response Generation  
The ZSPM15xx monitors various signals during operation and compares them with fault thresholds (see the  
“Threshold” column in Table 3.1). If a parameter exceeds a fault threshold, the respective fault signal is asserted  
and the ZSPM15xx will disable the output voltage as described below. Note that the ZSPM15xx features internal  
blanking times for voltage and temperature faults in order to improve noise-immunity.  
Three different response types are supported by the ZSPM15xx. The “low-impedance” response turns off the top  
MOSFET and enables the low-side MOSFET; i.e., PWM=0. After tOFF_MAX, both MOSFETs will be turned off,  
PWM=Z, DRVEN=0. A “high-impedance” response will disable both MOSFETs instantaneously, PWM=Z. A “soft-  
off” response ramps the output voltage down, similar to a power-down operation via the CONTROL pin. After  
tOFF_MAX, the controller will disable the power stage by turning both switches off, PWM=Z, DRVEN=0. The  
ZSPM15xx features a “hiccup mode,” which allows it to re-enable its output voltage after the fault condition has  
been removed.  
Table 3.1  
Fault Configuration Overview  
Fault  
Response Type  
Low-impedance  
High-impedance  
High-impedance  
High-impedance  
Low-impedance  
Soft-off  
Blanking  
25µs  
Threshold  
Output Over-Voltage  
Output Under-Voltage  
Input Over-Voltage  
Preconfigured; see section 1.4.  
Preconfigured; see section 1.4.  
Preconfigured; see section 1.4.  
Preconfigured; see section 1.4.  
Pin-strap selectable; see section 4.7.  
See specification in section 1.3.  
See specification in section 1.3.  
450µs  
450µs  
450µs  
None  
5ms  
Input Under-Voltage  
Over-Current  
Internal Over-Temperature  
External Over-Temperature  
Soft-off  
5ms  
3.4.1.  
Output Over/Under-Voltage  
To prevent damage to the load, the ZSPM15xx utilizes an output over-voltage protection circuit. The voltage at  
VFBP is continuously compared with a preconfigured threshold using a high-speed analog comparator. If the  
voltage exceeds the configured threshold, the fault response is generated.  
The ZSPM15xx also monitors the output voltage with a lower threshold. If the output voltage falls below the  
under-voltage fault level, a fault event is generated.  
See section 1.4 for the device-specific threshold levels.  
3.4.2.  
Output Current Protection  
The ZSPM15xx offers cycle-by-cycle average current sensing with configurable over-current protection. A  
dedicated ADC is used to provide fast and accurate current information over the switching period. The acquired  
information is compared with a selectable over-current threshold to detect faults. DCR current sensing across the  
inductor is supported. Additionally, the device uses DCR temperature compensation via the external temperature  
sense element. This increases the accuracy of the current sense method by counteracting the significant change  
of the DCR over temperature.  
The ZSPM15xx continuously monitors the average inductor current and utilizes this information to protect the  
power supply against excessive output current. If the average inductor current exceeds the selected over-current  
fault threshold, the fault response will be generated. See section 4.7 for instructions for configuring the threshold.  
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ZSPM15xx Datasheet  
3.4.3.  
Input Voltage Protection  
The ZSPM15xx continuously monitors the input voltage via the VIN pin. If the input voltage is outside an operation  
range defined by a lower and higher input voltage threshold, a fault is detected and a response generated. See  
section 1.4 for device-specific specifications for the thresholds.  
3.4.4.  
Over-Temperature Protection  
The ZSPM15xx features two independent temperature measurement units for internal and external temperature  
measurement. The internal temperature sensing measures the temperatures inside the ZSPM15xx. Place the  
external temperature sense element close to the inductor to measure its temperature. Use a PN-junction as the  
external temperature sense element. Small-signal transistors, such the 3904, are widely used for this application.  
The ZSPM15xx monitors these internal and external temperature measurements. If either of the temperatures  
exceeds the over-temperature threshold (see section 1.3), the fault response will be generated. For additional  
information on the external temperature sensing, refer to section 4.6.  
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ZSPM15xx Datasheet  
4
Application Information  
4.1. Application Schematic  
Figure 4.1  
ZSPM15xx – Application Circuit with a 5V Supply Voltage  
+5V  
VDD50  
VDD33  
VDD18  
Vin  
C1,C2,C3  
TEMP  
VIN  
C11  
GND  
AVDD18  
VREFP  
R9  
R1  
C10,  
R8  
ADCVREF  
AGND  
C4,C5,C6  
D1  
L1  
PWM  
+Vout  
DrMOS  
DRVEN  
R7,C8  
CONFIG0 THSHDN  
CONFIG1  
Cin  
Cout  
R2,R3  
ZSPM90xx  
PGND  
ISNSP  
ISNSN  
R6, C9  
R5  
CONTROL  
PGOOD  
VFBP  
VFBN  
R4  
C7  
ZSPM15xx  
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ZSPM15xx Datasheet  
Table 4.1  
Passive Component Values for the Application Circuits  
Reference  
Designator  
Component  
Value  
Description  
C1  
C2  
C3  
C4  
C5  
C6  
C7  
1.0µF  
4.7µF  
4.7µF  
4.7µF  
4.7µF*  
100nF*  
22pF  
Ceramic capacitor.  
Ceramic capacitor. Recommended: 4.7µF; minimum: 1.0µF.  
Ceramic capacitor. Recommended: 4.7µF; minimum: 1.0µF.  
Ceramic capacitor. Recommended: 4.7µF; minimum: 1.0µF.  
Ceramic capacitor.  
Ceramic capacitor.  
Output voltage sense filtering capacitor.  
Recommended: 22pF; maximum: 1nF.  
C8, C9  
C10  
C11  
L1  
**  
DCR current-sense filter capacitor.  
Filter capacitor for input voltage – optional.  
Filter capacitor for external temperature – optional.  
Inductor.  
100nF  
100nF  
**  
Cin  
Input filter capacitors. Can be a combination of ceramic and electrolytic capacitors.  
Cout  
.
Output filter capacitors. See section 4.8 for more information on the output capacitor  
selection.  
R1  
R2, R3  
R4  
51Ω*  
Resistor.  
.
Pin-strap configuration resistors. See sections 4.7 and 4.8.  
**  
Output voltage feedback divider bottom resistor. Connect between the VFBP and  
VFBN pins.  
Important: Refer to section 1.4 to determine if R4 should be placed or not depending on  
the specific ZSPM15xx product code.  
R5  
**  
Output voltage feedback divider top resistor. Connect between the output terminal and  
the VFBP pin.  
R6, R7  
R8  
**  
DCR current-sense filter resistors.  
1.0kΩ*  
Input voltage divider bottom resistor. Connect between the VIN and AGND pins of the  
ZSPM15xx.  
R9  
D1  
9.1kΩ*  
Input voltage divider top resistor. Connect between the main power input and the VIN  
pin of the ZSPM15xx.  
3904  
External temperature sense element (PN-junction). See section 4.6.  
* Fixed component values marked with an asterisk (*) must not be changed.  
** Refer to section 4.2 for components marked with a double asterisk (**).  
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ZSPM15xx Datasheet  
4.2. Device-Specific Passive Components  
Each product in the ZSPM15xx family requires external device-specific passive components. These are listed in  
the following tables.  
If specified in the following tables, the feedback divider (R4, R5) is mandatory to achieve the specified output  
voltage. The control loop has been optimized for the inductance specified, but inductors from different venders  
can be used.  
Note: The ZSPM15xx has been optimized for the specific Würth inductors recommended in the following tables  
depending on the ZSPM15xx product number. If a different inductor is used, its specifications should be  
comparable to the recommended Würth inductor; otherwise the full optimization provided by the ZSPM15xx might  
not be achieved. If a different inductor is used, the current sense components (R6, R7, C8) must be recalculated  
according to section 4.4.  
Components specified as DNP must not be placed.  
Table 4.2  
Passive Components for the ZSPM1501, ZSPM1502, and ZSPM1503  
Reference Designator Component Value  
Feedback divider  
Description  
R4  
DNP  
Output voltage feedback divider bottom resistor.  
Important: Do not place R4 for the ZSPM1501, ZSPM1502, and ZSPM1503.  
R5  
1.0kΩ  
Output voltage feedback divider top resistor.  
Connect between the output terminal and the VFBP pin.  
Inductor and current sensing  
L1  
L=330nH  
1050Ω  
Recommended inductor: Würth WE-HCM 744301033.  
DCR current-sense filter resistors.  
R6, R7  
C8, C9  
1000nF  
DCR current-sense filter capacitor.  
Table 4.3  
Passive Components for the ZSPM1504, ZSPM1505, and ZSPM1506  
Reference Designator Component Value  
Feedback divider  
Description  
R4  
R5  
1kΩ  
Output voltage feedback divider bottom resistor.  
750Ω  
Output voltage feedback divider top resistor.  
Connect between the output terminal and the VFBP pin.  
Inductor and current sensing  
L1  
L=470nH  
1000Ω  
Recommended inductor: Würth WE-HCM 744301047.  
DCR current-sense filter resistors.  
R6, R7  
C8, C9  
1000nF  
DCR current-sense filter capacitor.  
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ZSPM15xx Datasheet  
Table 4.4  
Passive Components for the ZSPM1507  
Reference Designator Component Value  
Feedback divider  
Description  
R4  
R5  
1kΩ  
1kΩ  
Output voltage feedback divider bottom resistor.  
Output voltage feedback divider top resistor.  
Connect between the output terminal and the VFBP pin.  
Inductor and current sensing  
L1  
L=1000nH  
1.05kΩ  
Recommended inductor: Würth WE-HCM 7443310100.  
DCR current-sense filter resistors.  
R6, R7  
C8, C9  
820nF  
DCR current-sense filter capacitor.  
Table 4.5  
Passive Components for the ZSPM1508 and ZSPM1509  
Reference Designator Component Value  
Feedback divider  
Description  
R4  
R5  
1kΩ  
Output voltage feedback divider bottom resistor.  
3.3kΩ  
Output voltage feedback divider top resistor.  
Connect between the output terminal and the VFBP pin.  
Inductor and current sensing  
L1  
L=2.2µH  
1180Ω  
470nF  
Recommended inductor: Wurth WE-HCC 7443310220.  
DCR current-sense filter resistors.  
R6, R7  
C8, C9  
DCR current-sense filter capacitor.  
Table 4.6  
Passive Components for the ZSPM1511, ZSPM1512, and ZSPM1513  
Reference Designator Component Value  
Feedback divider  
Description  
R4  
DNP  
Output voltage feedback divider bottom resistor.  
Important: Do not place R4 for the ZSPM1511, ZSPM1512, and  
ZSPM1513.  
R5  
1.0kΩ  
Output voltage feedback divider top resistor.  
Connect between the output terminal and the VFBP pin.  
Inductor and current sensing  
L1  
L= 680ƞH  
1.0kΩ  
Recommended inductor: Wurth WE-HCC 7443310068  
DCR current-sense filter resistors.  
R6, R7  
C8, C9  
1.0µF  
DCR current-sense filter capacitor.  
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ZSPM15xx Datasheet  
4.3. Output Voltage Feedback Components  
The ZSPM15xx supports output voltage feedback via a resistive feedback divider. However, adding a high-  
frequency low-pass filter in the sense path is highly recommended to remove high-frequency disturbances from  
the sense signals. Placing these components as close as possible to the ZSPM15xx is recommended. For larger  
output voltages, a feedback divider is required. Using resistors with small tolerances is recommended to  
guarantee good output voltage accuracy.  
Important: The feedback divider components specified in section 1.4 are mandatory if they are specified for the  
specific ZSPM15xx product. Components specified as DNP in section 1.4 must not be placed.  
Figure 4.2  
Output Voltage Sense Circuitry  
VOUT  
PGND  
C7  
R5  
VFBP  
VFBN  
R4  
ZSPM15xx  
4.4. DCR Current Sensing Components  
Figure 4.3  
Inductor Current Sensing Using the DCR Method  
L1  
DCR  
+Vout  
R7 C8  
R6, C9  
ISNSP  
ISNSN  
ZSPM15xx  
The ZSPM15xx supports the loss-less DCR current sense method. The equivalent DC resistance (DCR) of the  
inductor is used to measure the inductor current without adding any additional components in the power path. The  
technique is based on matching the time constants of the inductor and the parallel low-pass filter. Therefore the  
components (R6 and R7) and (C8 and C9) must be selected depending on the selected inductor.  
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ZSPM15xx Datasheet  
For design guidance using one of the preselected power stages, refer to section 4.2.  
Otherwise, the following procedure is recommended:  
1.) Set R7= 1kΩ  
2.) Calculate C8= L / (DCR * R7).  
3.) Select capacitor C8 = C9 from the appropriate E-series close to C8.  
4.) Recalculate R6 = R7 = L / (DCR * C8) based on the capacitor selected for C8.  
4.5. Input Voltage Sensing  
The ZSPM15xx supports input voltage sensing for input voltage protection. Therefore a voltage divider between  
the input voltage and the VIN pin is required. An optional capacitor C10 can be connected to the VIN pin to help  
improve noise immunity. See Table 4.1 for the recommended values for R8, R9, and C10.  
Figure 4.4  
Input Voltage Sense Circuitry  
Vin  
R9  
VIN  
ZSPM15xx  
C10,  
R8  
4.6. External Temperature Sensing  
The ZSPM15xx features external temperature sensing via a PN-junction. Typically, a small signal transistor, such  
as the 3904, is used for this purpose. The sense elements should be placed thermally close to the inductor to  
allow accurate temperature measurement. For information about the required device parameters, refer to the  
electrical specification in section 1.3. An additional capacitor (C11, 100nF) can be used to improve noise  
performance.  
Figure 4.5  
External Temperature Sense Circuitry  
TEMP  
C11  
D1  
ZSPM15xx  
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ZSPM15xx Datasheet  
4.7. CONFIG0 – Over-Current Protection Threshold  
The ZSPM15xx can be configured to support a wide range of different over-current protection (OCP) thresholds  
based on the user’s selection for the inductor. The over-current threshold voltage between the ISNSP and ISNSN  
pins can be configured by using a pull-down resistor (R2) on the CONFIG0 pin. This voltage represents the over-  
current threshold because faults are detected by measuring the voltage across the DCR of the selected inductor.  
The different configuration options are listed in Table 4.7.  
Table 4.7  
Index  
ZSPM15xx – OCP Pin Strap Resistor Selection  
Resistor Value  
Using the E96  
Series  
Resistor Value  
OCP Voltage  
OCP Voltage  
Selection at 25°C  
Index  
Using the E96 Series  
Selection at 25°C  
0
1
0Ω  
3.0mV  
4.0mV  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
5.360kΩ  
6.040kΩ  
6.810kΩ  
7.680kΩ  
8.660kΩ  
9.530kΩ  
10.50kΩ  
11.80kΩ  
13.00kΩ  
14.30kΩ  
15.80kΩ  
17.40kΩ  
19.10kΩ  
21.00kΩ  
23.20kΩ  
20.0mV  
22.5mV  
25.0mV  
27.5mV  
30.0mV  
32.5mV  
35.0mV  
37.5mV  
40.0mV  
45.0mV  
50.0mV  
55.0mV  
60.0mV  
65.0mV  
70.0mV  
392Ω  
2
576Ω  
5.0mV  
3
4
787Ω  
6.0mV  
7.0mV  
1.000kΩ  
1.240kΩ  
1.500kΩ  
1.780kΩ  
2.100kΩ  
2.430kΩ  
2.800kΩ  
3.240kΩ  
3.740kΩ  
4.220kΩ  
4.750kΩ  
5
8.0mV  
6
9.0mV  
7
10.0mV  
11.25mV  
12.5mV  
13.75mV  
15.0mV  
16.25mV  
17.5mV  
18.75mV  
8
9
10  
11  
12  
13  
14  
Note that due to the temperature compensation feature, the ZSPM15xx over-current threshold should be based  
on the current sense signal at 25°C. Temperature drift is automatically compensated within the device.  
Recommendation: For the selection of the over-current threshold voltage, include the tolerance of the inductor’s  
DCR and take the parasitic effects of the circuit board layout into account.  
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ZSPM15xx Datasheet  
4.8. CONFIG1 – Compensation Loop and Output Voltage Slew Rate  
The ZSPM15xx controllers can be configured to operate over a wide range of output capacitance. Four ranges of  
output capacitance have been specified to match typical customer requirements (see Table 4.8). For each output  
capacitance range, an optimized compensation loop can be selected. The appropriate compensator should be  
selected based on the application requirements.  
Typical performance measurements for both load transient performance and open-loop Bode plots can be found  
in section 5.  
Note: Using less output capacitance than the minimum capacitance given in Table 4.8 is not recommended.  
Table 4.8  
Recommended Output Capacitor Ranges  
Capacitor  
Range  
Ceramic Capacitor  
Bulk Electrolytic Capacitors  
Suitable Compensator  
Minimum 200µF  
Maximum 500µF  
Comp0  
#1  
None  
None  
Minimum 500µF  
Comp1  
Comp2  
Comp3  
#2  
#3  
#4  
Maximum 1000µF  
Minimum 200µF  
Maximum 500µF  
Minimum 2 x 470µF, 7mΩ ESR  
Maximum 4 x 470µF, 7mΩ ESR  
Minimum 500µF  
Minimum 4 x 470µF, 7mΩ ESR  
Maximum 6 x 470µF, 7mΩ ESR  
Maximum 1000µF  
To achieve the optimal performance for a given output capacitor range, one of four sets of compensation loop  
parameters, Comp0 to Comp3, should be selected with a resistor between the CONFIG1 and GND pins. The  
compensation loop parameters have been configured to ensure optimal transient performance and good control  
loop stability margins.  
For each set of compensation loop parameters, there is a choice of seven slew rates for the output voltage during  
power-up. The selection of the slew rate can be used to limit the input current of the DC/DC converter while it is  
ramping up the output voltage. The current needed to charge the output capacitors increases in direct proportion  
to the slew rate.  
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ZSPM15xx Datasheet  
Table 4.9 gives a complete list of the selectable compensation loop parameters and slew rates together with the  
equivalent pin-strap resistor values (R3) for the ZSPM1501 to ZSPM1506 and the ZSPM1511 to ZSPM1513.  
Table 4.10, Table 4.11, and Table 4.12 provide the values and settings for the ZSPM1507, ZSPM1508, and  
ZSPM1509 respectively.  
Table 4.9  
Compensator and VOUT Slew Rate Pin Strap Resistor Selection for the ZSPM1501 to ZSPM1506 and the  
ZSPM1511 to ZSPM1513  
Resistor  
Value  
Using the  
E96 Series  
Resistor  
Value  
Using the  
E96 Series  
Vout  
Slew Rate  
Vout  
Slew Rate  
Index  
Compensator  
Index  
Compensator  
0
1
0Ω  
2.700 V/ms  
1.350 V/ms  
0.675 V/ms  
0.300 V/ms  
0.200 V/ms  
0.150 V/ms  
0.100 V/ms  
2.700 V/ms  
1.350 V/ms  
0.675 V/ms  
0.300 V/ms  
0.200 V/ms  
0.150 V/ms  
0.100 V/ms  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
4.750kΩ  
5.360kΩ  
6.040kΩ  
6.810kΩ  
7.680kΩ  
8.660kΩ  
9.530kΩ  
10.50kΩ  
11.80kΩ  
13.00kΩ  
14.30kΩ  
15.80kΩ  
17.40kΩ  
19.10kΩ  
2.700 V/ms  
1.350 V/ms  
0.675 V/ms  
0.300 V/ms  
0.200 V/ms  
0.150 V/ms  
0.100 V/ms  
2.700 V/ms  
1.350 V/ms  
0.675 V/ms  
0.300 V/ms  
0.200 V/ms  
0.150 V/ms  
0.100 V/ms  
392Ω  
2
576Ω  
Comp0  
Comp2  
3
787Ω  
(Capacitor  
Range #1)  
(Capacitor  
Range #3)  
4
1.000kΩ  
1.240kΩ  
1.500kΩ  
1.780kΩ  
2.100kΩ  
2.430kΩ  
2.800kΩ  
3.240kΩ  
3.740kΩ  
4.220kΩ  
5
6
7
8
9
Comp1  
Comp3  
10  
11  
12  
13  
(Capacitor  
Range #2)  
(Capacitor  
Range #4)  
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ZSPM15xx Datasheet  
Table 4.10 Compensator and VOUT Slew Rate Pin Strap Resistor Selection for the ZSPM1507  
Resistor  
Value  
Using the  
E96 Series  
Resistor  
Value  
Using the  
E96 Series  
Vout  
Slew Rate  
Vout  
Slew Rate  
Index  
Compensator  
Index  
Compensator  
0
1
0Ω  
6.756 V/ms  
3.378 V/ms  
1.689 V/ms  
0.750 V/ms  
0.517 V/ms  
0.374 V/ms  
0.250 V/ms  
6.756 V/ms  
3.378 V/ms  
1.689 V/ms  
0.750 V/ms  
0.517 V/ms  
0.374 V/ms  
0.250 V/ms  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
4.750kΩ  
5.360kΩ  
6.040kΩ  
6.810kΩ  
7.680kΩ  
8.660kΩ  
9.530kΩ  
10.50kΩ  
11.80kΩ  
13.00kΩ  
14.30kΩ  
15.80kΩ  
17.40kΩ  
19.10kΩ  
6.756 V/ms  
3.378 V/ms  
1.689 V/ms  
0.750 V/ms  
0.517 V/ms  
0.374 V/ms  
0.250 V/ms  
6.756 V/ms  
3.378 V/ms  
1.689 V/ms  
0.750 V/ms  
0.517 V/ms  
0.374 V/ms  
0.250 V/ms  
392Ω  
2
576Ω  
Comp0  
Comp2  
3
787Ω  
(Capacitor  
Range #1)  
(Capacitor  
Range #3)  
4
1.000kΩ  
1.240kΩ  
1.500kΩ  
1.780kΩ  
2.100kΩ  
2.430kΩ  
2.800kΩ  
3.240kΩ  
3.740kΩ  
4.220kΩ  
5
6
7
8
9
Comp1  
Comp3  
10  
11  
12  
13  
(Capacitor  
Range #2)  
(Capacitor  
Range #4)  
© 2016 Integrated Device Technology, Inc.  
43  
January 27, 2016  
 
ZSPM15xx Datasheet  
Table 4.11 Compensator and VOUT Slew Rate Pin Strap Resistor Selection for the ZSPM1508  
Resistor  
Value  
Using the  
E96 Series  
Resistor  
Value  
Using the  
E96 Series  
Vout  
Slew Rate  
Vout  
Slew Rate  
Index  
Compensator  
Index  
Compensator  
0
1
0Ω  
2.896 V/ms  
1.659 V/ms  
1.051 V/ms  
0.827 V/ms  
0.643 V/ms  
0.428 V/ms  
0.330 V/ms  
2.896 V/ms  
1.659 V/ms  
1.051 V/ms  
0.827 V/ms  
0.643 V/ms  
0.428 V/ms  
0.330 V/ms  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
4.750kΩ  
5.360kΩ  
6.040kΩ  
6.810kΩ  
7.680kΩ  
8.660kΩ  
9.530kΩ  
10.50kΩ  
11.80kΩ  
13.00kΩ  
14.30kΩ  
15.80kΩ  
17.40kΩ  
19.10kΩ  
2.896 V/ms  
1.659 V/ms  
1.051 V/ms  
0.827 V/ms  
0.643 V/ms  
0.428 V/ms  
0.330 V/ms  
2.896 V/ms  
1.659 V/ms  
1.051 V/ms  
0.827 V/ms  
0.643 V/ms  
0.428 V/ms  
0.330 V/ms  
392Ω  
2
576Ω  
Comp0  
Comp2  
3
787Ω  
(Capacitor  
Range #1)  
(Capacitor  
Range #3)  
4
1.000kΩ  
1.240kΩ  
1.500kΩ  
1.780kΩ  
2.100kΩ  
2.430kΩ  
2.800kΩ  
3.240kΩ  
3.740kΩ  
4.220kΩ  
5
6
7
8
9
Comp1  
Comp3  
10  
11  
12  
13  
(Capacitor  
Range #2)  
(Capacitor  
Range #4)  
© 2016 Integrated Device Technology, Inc.  
44  
January 27, 2016  
 
ZSPM15xx Datasheet  
Table 4.12 Compensator and VOUT Slew Rate Pin Strap Resistor Selection for the ZSPM1509  
Resistor  
Value  
Using the  
E96 Series  
Resistor  
Value  
Using the  
E96 Series  
Vout  
Slew Rate  
Vout  
Slew Rate  
Index  
Compensator  
Index  
Compensator  
0
1
0Ω  
2.907 V/ms  
1.938 V/ms  
1.656 V/ms  
1.160 V/ms  
0.967 V/ms  
0.683 V/ms  
0.504 V/ms  
2.907 V/ms  
1.938 V/ms  
1.656 V/ms  
1.160 V/ms  
0.967 V/ms  
0.683 V/ms  
0.504 V/ms  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
4.750kΩ  
5.360kΩ  
6.040kΩ  
6.810kΩ  
7.680kΩ  
8.660kΩ  
9.530kΩ  
10.50kΩ  
11.80kΩ  
13.00kΩ  
14.30kΩ  
15.80kΩ  
17.40kΩ  
19.10kΩ  
2.907 V/ms  
1.938 V/ms  
1.656 V/ms  
1.160 V/ms  
0.967 V/ms  
0.683 V/ms  
0.504 V/ms  
2.907 V/ms  
1.938 V/ms  
1.656 V/ms  
1.160 V/ms  
0.967 V/ms  
0.683 V/ms  
0.504 V/ms  
392Ω  
2
576Ω  
Comp0  
Comp2  
3
787Ω  
(Capacitor  
Range #1)  
(Capacitor  
Range #3)  
4
1.000kΩ  
1.240kΩ  
1.500kΩ  
1.780kΩ  
2.100kΩ  
2.430kΩ  
2.800kΩ  
3.240kΩ  
3.740kΩ  
4.220kΩ  
5
6
7
8
9
Comp1  
Comp3  
10  
11  
12  
13  
(Capacitor  
Range #2)  
(Capacitor  
Range #4)  
© 2016 Integrated Device Technology, Inc.  
45  
January 27, 2016  
 
ZSPM15xx Datasheet  
5
Typical Performance Data  
This section gives typical performance data for the individual products in the ZSPM15xx family. The pre-  
programmed compensation loop parameters for the ZSPM15xx have been designed to ensure stability and  
optimal transient performance for the specified inductance in combination with one of the four output capacitor  
ranges (see Table 4.8).  
The transient load steps have been generated with a load resistor and a power MOSFET located on the same  
circuit board as the ZSPM15xx and the recommended reference layout. The Evaluation Kit for the specific  
ZSPM15xx product can be used to further evaluate the performance of the ZSPM15xx for the four output  
capacitor ranges.  
© 2016 Integrated Device Technology, Inc.  
46  
January 27, 2016  
 
ZSPM15xx Datasheet  
5.1. ZSPM1501 – Typical Load Transient Response – Capacitor Range #1 – Comp0  
Test conditions: VIN = 12.0V, VOUT = 0.85V  
Minimum output capacitance: 2 x 100µF/6.3V X5R  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R  
Figure 5.1  
ZSPM1501 with Comp0; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.2  
ZSPM1501 with Comp0; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.3  
ZSPM1501 with Comp0; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.4  
ZSPM1501 with Comp0; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1: (Blue): VOUT 100mV/div AC  
Ch2: (Cyan): PWM 5V/div DC  
Ch4: (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1: (Blue): VOUT 100mV/div AC  
Ch2: (Cyan): PWM 5V/div DC  
Ch4: (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.5  
Open Loop Bode Plots for ZSPM1501 with Comp0  
Max Caps - Gain  
40  
30  
0
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
-30  
-60  
-90  
-120  
-150  
-180  
20  
10  
0
-10  
-20  
-30  
-40  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
47  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.2. ZSPM1501 – Typical Load Transient Response – Capacitor Range #2 – Comp1  
Test conditions: VIN = 12.0V, VOUT = 0.85V  
Minimum output capacitance: 5 x 100µF/6.3V X5R  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R  
Figure 5.6  
ZSPM1501 with Comp1; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.7  
ZSPM1501 with Comp1; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.8  
ZSPM1501 with Comp1; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.9  
ZSPM1501 with Comp1; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.10 Open Loop Bode Plots for ZSPM1501 with Comp1  
Max Caps - Gain  
40  
30  
0
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
-30  
-60  
-90  
-120  
-150  
-180  
20  
10  
0
-10  
-20  
-30  
-40  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
48  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.3. ZSPM1501 – Typical Load Transient Response – Capacitor Range #3 – Comp2  
Test conditions: VIN = 12.0V, VOUT = 0.85V  
Minimum output capacitance: 2 x 100µF/6.3V X5R + 2x 470µF/7mΩ  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R + 4 x 470µF/7mΩ  
Figure 5.11 ZSPM1501 with Comp2; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.12 ZSPM1501 with Comp2; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.13 ZSPM1501 with Comp2; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.14 ZSPM1501 with Comp2; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.15 Open Loop Bode Plots for ZSPM1501 with Comp2  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
-30  
20  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
49  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.4. ZSPM1501 – Typical Load Transient Response – Capacitor Range #4 – Comp3  
Test conditions: VIN = 12.0V, VOUT = 0.85V  
Minimum output capacitance: 5 x 100µF/6.3V X5R + 4 x 470µF/7mΩ  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R + 6 x 470µF/7mΩ  
Figure 5.16 ZSPM1501 with Comp3; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.17 ZSPM1501 with Comp3; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.18 ZSPM1501 with Comp3; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.19 ZSPM1501 with Comp3; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.20 Open Loop Bode Plots for ZSPM1501 with Comp3  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
-30  
20  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
50  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.5. ZSPM1502 – Typical Load Transient Response – Capacitor Range #1 – Comp0  
Test conditions: VIN = 12.0V, VOUT = 1.00V  
Minimum output capacitance: 2 x 100µF/6.3V X5R  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R  
Figure 5.21 ZSPM1502 with Comp0; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.22 ZSPM1502 with Comp0; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.23 ZSPM1502 with Comp0; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.24 ZSPM1502 with Comp0; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.25 Open Loop Bode Plots for ZSPM1502 with Comp0  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
-30  
20  
Min Caps - Phase  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
51  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.6. ZSPM1502 – Typical Load Transient Response – Capacitor Range #2 – Comp1  
Test conditions: VIN = 12.0V, VOUT = 1.00V  
Minimum output capacitance: 5 x 100µF/6.3V X5R  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R  
Figure 5.26 ZSPM1502 with Comp1; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.27 ZSPM1502 with Comp1; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.28 ZSPM1502 with Comp1; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.29 ZSPM1502 with Comp1; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.30 Open Loop Bode Plots for ZSPM1502 with Comp1  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
-30  
20  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
52  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.7. ZSPM1502 – Typical Load Transient Response – Capacitor Range #3 – Comp2  
Test conditions: VIN = 12.0V, VOUT = 1.00V  
Minimum output capacitance: 2 x 100µF/6.3V X5R + 2 x 470µF/7mΩ  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R + 4 x 470µF/7mΩ  
Figure 5.31 ZSPM1502 with Comp2; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.32 ZSPM1502 with Comp2; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.33 ZSPM1502 with Comp2; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.34 ZSPM1502 with Comp2; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.35 Open Loop Bode Plots for ZSPM1502 with Comp2  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
-30  
20  
Min Caps - Phase  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
53  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.8. ZSPM1502 – Typical Load Transient Response – Capacitor Range #4 – Comp3  
Test conditions: VIN = 12.0V, VOUT = 1.00V  
Minimum output capacitance: 5 x 100µF/6.3V X5R + 4 x 470µF/7mΩ  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R + 6 x 470µF/7mΩ  
Figure 5.36 ZSPM1502 with Comp3; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.37 ZSPM1502 with Comp3; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.38 ZSPM1502 with Comp3; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.39 ZSPM1502 with Comp3; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.40 Open Loop Bode Plots for ZSPM1502 with Comp3  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
-30  
20  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
54  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.9. ZSPM1503 – Typical Load Transient Response – Capacitor Range #1 – Comp0  
Test conditions: VIN = 12.0V, VOUT = 1.20V  
Minimum output capacitance: 2 x 100µF/6.3V X5R  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R  
Figure 5.41 ZSPM1503 with Comp0; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.42 ZSPM1503 with Comp0; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.43 ZSPM1503 with Comp0; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.44 ZSPM1503 with Comp0; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.45  
Open Loop Bode Plots for ZSPM1503 with Comp0  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
-30  
20  
Min Caps - Phase  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
55  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.10. ZSPM1503 – Typical Load Transient Response – Capacitor Range #2 – Comp1  
Test conditions: VIN = 12.0V, VOUT = 1.20V  
Minimum output capacitance: 5 x 100µF/6.3V X5R  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R  
Figure 5.46 ZSPM1503 with Comp1; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.47 ZSPM1503 with Comp1; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.48 ZSPM1503 with Comp1; 5 to 15A Load Step;  
and Max. Capacitance  
Figure 5.49 ZSPM1503 with Comp1; 15 to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.50 Open Loop Bode Plots for ZSPM1503 with Comp1  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
-30  
20  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
56  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.11. ZSPM1503 – Typical Load Transient Response – Capacitor Range #3 – Comp2  
Test conditions: VIN = 12.0V, VOUT = 1.20V  
Minimum output capacitance: 2 x 100µF/6.3V X5R + 2 x 470µF/7mΩ  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R + 4 x 470µF/7mΩ  
Figure 5.51 ZSPM1503 with Comp2; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.52 ZSPM1503 with Comp2; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.53 ZSPM1503 with Comp2; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.54 ZSPM1503 with Comp2; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.55 Open Loop Bode Plots for ZSPM1503 with Comp2  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
-30  
20  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
57  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.12. ZSPM1503 – Typical Load Transient Response – Capacitor Range #4 – Comp3  
Test conditions: VIN = 12.0V, VOUT = 1.20V  
Minimum output capacitance: 5 x 100µF/6.3V X5R + 4 x 470µF/7mΩ  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R + 6 x 470µF/7mΩ  
Figure 5.56 ZSPM1503 with Comp3; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.57 ZSPM1503 with Comp3; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.58 ZSPM1503 with Comp3; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.59 ZSPM1503 with Comp3; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.60 Open Loop Bode Plots for ZSPM1503 with Comp3  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
-30  
20  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
58  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.13. ZSPM1504 – Typical Load Transient Response – Capacitor Range #1 – Comp0  
Test conditions: VIN = 12.0V, VOUT = 1.50V  
Minimum output capacitance: 2 x 100µF/6.3V X5R  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R  
Figure 5.61 ZSPM1504 with Comp0; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.62 ZSPM1504 with Comp0; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.63 ZSPM1504 with Comp0; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.64 ZSPM1504 with Comp0; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.65  
Open Loop Bode Plots for ZSPM1504 with Comp0  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
-30  
20  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
59  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.14. ZSPM1504 – Typical Load Transient Response – Capacitor Range #2 – Comp1  
Test conditions: VIN = 12.0V, VOUT = 1.50V  
Minimum output capacitance: 5 x 100µF/6.3V X5R  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R  
Figure 5.66 ZSPM1504 with Comp1; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.67 ZSPM1504 with Comp1; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.68 ZSPM1504 with Comp1; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.69 ZSPM1504 with Comp1; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.70 Open Loop Bode Plots for ZSPM1504 with Comp1  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
-30  
20  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
60  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.15. ZSPM1504 – Typical Load Transient Response – Capacitor Range #3 – Comp2  
Test conditions: VIN = 12.0V, VOUT = 1.50V  
Minimum output capacitance: 2 x 100µF/6.3V X5R + 2 x 470µF/7mΩ  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R + 4 x 470µF/7mΩ  
Figure 5.71 ZSPM1504 with Comp2; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.72 ZSPM1504 with Comp2; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.73 ZSPM1504 with Comp2; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.74 ZSPM1504 with Comp2; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.75 Open Loop Bode Plots for ZSPM1504 with Comp2  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
-30  
20  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
1
10 Frequency [kHz]  
100  
© 2016 Integrated Device Technology, Inc.  
61  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.16. ZSPM1504 – Typical Load Transient Response – Capacitor Range #4 – Comp3  
Test conditions: VIN = 12.0V, VOUT = 1.50V  
Minimum output capacitance: 5 x 100µF/6.3V X5R + 4 x 470µF/7mΩ  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R + 6 x 470µF/7mΩ  
Figure 5.76 ZSPM1504 with Comp3; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.77 ZSPM1504 with Comp3; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.78 ZSPM1504 with Comp3; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.79 ZSPM1504 with Comp3; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.80 Open Loop Bode Plots for ZSPM1504 with Comp3  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
-30  
20  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
62  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.17. ZSPM1505 – Typical Load Transient Response – Capacitor Range #1 – Comp0  
Test conditions: VIN = 12.0V, VOUT = 1.80V  
Minimum output capacitance: 2 x 100µF/6.3V X5R  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R  
Figure 5.81 ZSPM1505 with Comp0; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.82 ZSPM1505 with Comp0; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.83 ZSPM1505 with Comp0; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.84 ZSPM1505 with Comp0; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.85  
Open Loop Bode Plots for ZSPM1505 with Comp0  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
-30  
20  
Min Caps - Phase  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
63  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.18. ZSPM1505 – Typical Load Transient Response – Capacitor Range #2 – Comp1  
Test conditions: VIN = 12.0V, VOUT = 1.80V  
Minimum output capacitance: 5 x 100µF/6.3V X5R  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R  
Figure 5.86 ZSPM1505 with Comp1; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.87 ZSPM1505 with Comp1; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.88 ZSPM1505 with Comp1; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.89 ZSPM1505 with Comp1; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.90 Open Loop Bode Plots for ZSPM1505 with Comp1  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
-30  
20  
Min Caps - Phase  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
64  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.19. ZSPM1505 – Typical Load Transient Response – Capacitor Range #3 – Comp2  
Test conditions: VIN = 12.0V, VOUT = 1.80V  
Minimum output capacitance: 2 x 100µF/6.3V X5R + 2 x 470µF/7mΩ  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R + 4 x 470µF/7mΩ  
Figure 5.91 ZSPM1505 with Comp2; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.92 ZSPM1505 with Comp2; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.93 ZSPM1505 with Comp2; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.94 ZSPM1505 with Comp2; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3: (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.95 Open Loop Bode Plots for ZSPM1505 with Comp2  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
-30  
Max Caps - Phase  
20  
Min Caps - Phase  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
1
10 Frequency [kHz]  
100  
© 2016 Integrated Device Technology, Inc.  
65  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.20. ZSPM1505 – Typical Load Transient Response – Capacitor Range #4 – Comp3  
Test conditions: VIN = 12.0V, VOUT = 1.80V  
Minimum output capacitance: 5 x 100µF/6.3V X5R + 4 x 470µF/7mΩ  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R + 6 x 470µF/7mΩ  
Figure 5.96 ZSPM1505 with Comp3; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.97 ZSPM1505 with Comp3; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.98 ZSPM1505 with Comp3; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.99 ZSPM1505 with Comp3; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Green): Load Trigger 5V/div DC  
Time Scale: 8µs/div  
Figure 5.100 Open Loop Bode Plots for ZSPM1505 with Comp3  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
-30  
20  
Min Caps - Phase  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
66  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.21. ZSPM1506 – Typical Load Transient Response – Capacitor Range #1 – Comp0  
Test conditions: VIN = 12.0V, VOUT = 2.00V  
Minimum output capacitance: 2 x 100µF/6.3V X5R  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R  
Figure 5.101 ZSPM1506 with Comp0; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.102 ZSPM1506 with Comp0; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.103 ZSPM1506 with Comp0; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.104 ZSPM1506 with Comp0; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.105 Open Loop Bode Plots for ZSPM1506 with Comp0  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
-30  
Max Caps - Phase  
20  
Min Caps - Phase  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
67  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.22. ZSPM1506 – Typical Load Transient Response – Capacitor Range #2 – Comp1  
Test conditions: VIN = 12.0V, VOUT = 2.00V  
Minimum output capacitance: 5 x 100µF/6.3V X5R  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R  
Figure 5.106 ZSPM1506 with Comp1; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.107 ZSPM1506 with Comp1; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.108 ZSPM1506 with Comp1; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.109 ZSPM1506 with Comp1; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.110 Open Loop Bode Plots for ZSPM1506 with Comp1  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
-30  
20  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
68  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.23. ZSPM1506 – Typical Load Transient Response – Capacitor Range #3 – Comp2  
Test conditions: VIN = 12.0V, VOUT = 2.00V  
Minimum output capacitance: 2 x 100µF/6.3V X5R + 2 x 470µF/7mΩ  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R + 4 x 470µF/7mΩ  
Figure 5.111 ZSPM1506 with Comp2; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.112 ZSPM1506 with Comp2; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.113 ZSPM1506 with Comp2; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.114 ZSPM1506 with Comp2; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.115 Open Loop Bode Plots for ZSPM1506 with Comp2  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
-30  
20  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
69  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.24. ZSPM1506 – Typical Load Transient Response – Capacitor Range #4 – Comp3  
Test conditions: VIN = 12.0V, VOUT = 2.00V  
Minimum output capacitance: 5 x 100µF/6.3V X5R + 4 x 470µF/7mΩ  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R + 6 x 470µF/7mΩ  
Figure 5.116 ZSPM1506 with Comp3; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.117 ZSPM1506 with Comp3; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.118 ZSPM1506 with Comp3; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.119 ZSPM1506 with Comp3; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.120 Open Loop Bode Plots for ZSPM1506 with Comp3  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
-30  
20  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
70  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.25. ZSPM1507 – Typical Load Transient Response –Capacitor Range 1 – Comp0  
Test conditions: VIN = 12.0V, VOUT = 2.50V  
Minimum output capacitance: 2 x 100µF/6.3V X5R  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R  
Figure 5.121 ZSPM1507 with Comp0; 5 to 15A Load Step;  
and Min. Capacitance  
Figure 5.122 ZSPM1507 with Comp0; 15 to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.123 ZSPM1507 with Comp0; 5 to 15A Load Step;  
and Max. Capacitance  
Figure 5.124 ZSPM1507 with Comp0; 15 to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.125 Open Loop Bode Plots for ZSPM1507 with Comp0  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
-30  
20  
Min Caps - Phase  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
1
10  
Frequency [kHz]  
100  
© 2016 Integrated Device Technology, Inc.  
71  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.26. ZSPM1507 – Typical Load Transient Response –Capacitor Range 2 – Comp1  
Test conditions: VIN = 12.0V, VOUT = 2.50V  
Minimum output capacitance: 5 x 100µF/6.3V X5R  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R  
Figure 5.126 ZSPM1507 with Comp1; 5 to 15A Load Step;  
and Min. Capacitance  
Figure 5.127 ZSPM1507 with Comp1; 15 to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.128 ZSPM1507 with Comp1; 5 to 15A Load Step;  
and Max. Capacitance  
Figure 5.129 ZSPM1507 with Comp1; 15 to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.130 Open Loop Bode Plots for ZSPM1507 with Comp1  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
-30  
20  
Min Caps - Phase  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
1
10  
Frequency [kHz]  
100  
© 2016 Integrated Device Technology, Inc.  
72  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.27. ZSPM1507 – Typical Load Transient Response –Capacitor Range 3 – Comp2  
Test conditions: VIN = 12.0V, VOUT = 2.50V  
Minimum output capacitance: 2 x 100µF/6.3V X5R + 2x 470µF/7mΩ  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R + 4 x 470µF/7mΩ  
Figure 5.131 ZSPM1507 with Comp2; 5 to 15A Load Step;  
and Min. Capacitance  
Figure 5.132 ZSPM1507 with Comp2; 15 to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.133 ZSPM1507 with Comp2; 5 to 15A Load Step;  
and Max. Capacitance  
Figure 5.134 ZSPM1507 with Comp2; 15 to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.135 Open Loop Bode Plots for ZSPM1507 with Comp2  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
-30  
20  
Min Caps - Phase  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
1
10  
Frequency [kHz]  
100  
© 2016 Integrated Device Technology, Inc.  
73  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.28. ZSPM1507 – Typical Load Transient Response –Capacitor Range 4 – Comp3  
Test conditions: VIN = 12.0V, VOUT = 2.50V  
Minimum output capacitance: 5 x 100µF/6.3V X5R + 4 x 470µF/7mΩ  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R + 6 x 470µF/7mΩ  
Figure 5.136 ZSPM1507 with Comp3; 5 to 15A Load Step;  
and Min. Capacitance  
Figure 5.137 ZSPM1507 with Comp3; 15 to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.138 ZSPM1507 with Comp3; 5 to 15A Load Step;  
and Max. Capacitance  
Figure 5.139 ZSPM1507 with Comp3; 15 to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.140 Open Loop Bode Plots for ZSPM1507 with Comp3  
40  
30  
0
Max Caps - Gain  
Min Caps - Gain  
-30  
Max Caps - Phase  
Min Caps - Phase  
20  
-60  
10  
0
-90  
-10  
-20  
-30  
-40  
-120  
-150  
-180  
1
10  
Frequency [kHz]  
100  
© 2016 Integrated Device Technology, Inc.  
74  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.29. ZSPM1508 – Typical Load Transient Response –Capacitor Range 1 – Comp0  
Test conditions: VIN = 12.0V, VOUT = 3.30V  
Minimum output capacitance: 2 x 100µF/10V X5R  
Maximum output capacitance: 4 x 100µF/10V X5R + 2 x 47µF/10V X7R  
Figure 5.141 ZSPM1508 with Comp0; 5A to 10A Load Step;  
and Min. Capacitance  
Figure 5.142 ZSPM1508 with Comp0; 10A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.143 ZSPM1508 with Comp0; 5A to 10A Load Step;  
and Max. Capacitance  
Figure 5.144 ZSPM1508 with Comp0; 10A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.145 Open Loop Bode Plots for ZSPM1508 with Comp0  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
0.1  
1
Frequency [kHz]  
10  
100  
© 2016 Integrated Device Technology, Inc.  
75  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.30. ZSPM1508 – Typical Load Transient Response –Capacitor Range 2 – Comp1  
Test conditions: VIN = 12.0V, VOUT = 3.30V  
Minimum output capacitance: 5 x 100µF/10V X5R  
Maximum output capacitance: 8 x 100µF/10V X5R + 4 x 47µF/10V X7R  
Figure 5.146 ZSPM1508 with Comp1; 5A to 10A Load Step;  
and Min. Capacitance  
Figure 5.147 ZSPM1508 with Comp1; 10A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.148 ZSPM1508 with Comp1; 5A to 10A Load Step;  
and Max. Capacitance  
Figure 5.149 ZSPM1508 with Comp1; 10A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.150 Open Loop Bode Plots for ZSPM1508 with Comp1  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
Frequency [kHz]  
0.1  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
76  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.31. ZSPM1508 – Typical Load Transient Response –Capacitor Range 3 – Comp2  
Test conditions: VIN = 12.0V, VOUT = 3.30V  
Minimum output capacitance: 2 x 100µF/10V X5R + 2x 470µF/7mΩ  
Maximum output capacitance: 4 x 100µF/10V X5R + 2 x 47µF/10V X7R + 4 x 470µF/7mΩ  
Figure 5.151 ZSPM1508 with Comp2; 5A to 10A Load Step;  
and Min. Capacitance  
Figure 5.152 ZSPM1508 with Comp2; 10A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 40µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 40µs/div  
Figure 5.153 ZSPM1508 with Comp2; 5A to 10A Load Step;  
and Max. Capacitance  
Figure 5.154 ZSPM1508 with Comp2; 10A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 40µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 40µs/div  
Figure 5.155 Open Loop Bode Plots for ZSPM1508 with Comp2  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
Frequency [kHz]  
0.1  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
77  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.32. ZSPM1508 – Typical Load Transient Response –Capacitor Range 4 – Comp3  
Test conditions: VIN = 12.0V, VOUT = 3.30V  
Minimum output capacitance: 5 x 100µF/10V X5R + 4 x 470µF/7mΩ  
Maximum output capacitance: 8 x 100µF/10V X5R + 4 x 47µF/10V X7R + 6 x 470µF/7mΩ  
Figure 5.156 ZSPM1508 with Comp3; 5A to 10A Load Step;  
and Min. Capacitance  
Figure 5.157 ZSPM1508 with Comp3; 10A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 10mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 40µs/div  
Ch1 (Blue): VOUT 10mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 40µs/div  
Figure 5.158 ZSPM1508 with Comp3; 5A to 10A Load Step;  
and Max. Capacitance  
Figure 5.159 ZSPM1508 with Comp3; 10A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 10mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 40µs/div  
Ch1 (Blue): VOUT 10mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 40µs/div  
Figure 5.160 Open Loop Bode Plots for ZSPM1508 with Comp3  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
0.1  
1
Frequency [kHz]  
10  
100  
© 2016 Integrated Device Technology, Inc.  
78  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.33. ZSPM1509 – Typical Load Transient Response –Capacitor Range 1 – Comp0  
Test conditions: VIN = 12.0V, VOUT = 5.00V  
Minimum output capacitance: 2 x 100µF/10 X5R  
Maximum output capacitance: 4 x 100µF/10V X5R + 2 x 47µF/10V X7R  
Figure 5.161 ZSPM1509 with Comp0; 3A to 8A Load Step;  
and Min. Capacitance  
Figure 5.162 ZSPM1509 with Comp0; 8A to 3A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 20µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 20µs/div  
Figure 5.163 ZSPM1509 with Comp0; 3A to 8A Load Step;  
and Max. Capacitance  
Figure 5.164 ZSPM1509 with Comp0; 8A to 3A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 20µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 20µs/div  
Figure 5.165 Open Loop Bode Plots for ZSPM1509 with Comp0  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
0.1  
1
Frequency [kHz]  
10  
100  
© 2016 Integrated Device Technology, Inc.  
79  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.34. ZSPM1509 – Typical Load Transient Response –Capacitor Range 2 – Comp1  
Test conditions: VIN = 12.0V, VOUT =5.00V  
Minimum output capacitance: 5 x 100µF/10V X5R  
Maximum output capacitance: 8 x 100µF/10V X5R + 4 x 47µF/10V X7R  
Figure 5.166 ZSPM1509 with Comp1; 3A to 8A Load Step;  
and Min. Capacitance  
Figure 5.167 ZSPM1509 with Comp1; 8A to 3A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 20µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 20µs/div  
Figure 5.168 ZSPM1509 with Comp1; 3A to 8A Load Step;  
and Max. Capacitance  
Figure 5.169 ZSPM1509 with Comp1; 8A to 3A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 20µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 20µs/div  
Figure 5.170 Open Loop Bode Plots for ZSPM1509 with Comp1  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
0.1  
1
Frequency [kHz]  
10  
100  
© 2016 Integrated Device Technology, Inc.  
80  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.35. ZSPM1509 – Typical Load Transient Response –Capacitor Range 3 – Comp2  
Test conditions: VIN = 12.0V, VOUT = 5.00V  
Minimum output capacitance: 2 x 100µF/10V X5R + 2x 470µF/7mΩ  
Maximum output capacitance: 4 x 100µF/10V X5R + 2 x 47µF/10V X7R + 4 x 470µF/7mΩ  
Figure 5.171 ZSPM1509 with Comp2; 3A to 8A Load Step;  
and Min. Capacitance  
Figure 5.172 ZSPM1509 with Comp2; 8A to 3A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 20µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 20µs/div  
Figure 5.173 ZSPM1509 with Comp2; 3A to 8A Load Step;  
and Max. Capacitance  
Figure 5.174 ZSPM1509 with Comp2; 8A to 3A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 20µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 20µs/div  
Figure 5.175 Open Loop Bode Plots for ZSPM1509 with Comp2  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
0.1  
1
Frequency [kHz]  
10  
100  
© 2016 Integrated Device Technology, Inc.  
81  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.36. ZSPM1509 – Typical Load Transient Response –Capacitor Range 4 – Comp3  
Test conditions: VIN = 12.0V, VOUT =5.00V  
Minimum output capacitance: 5 x 100µF/10V X5R + 4 x 470µF/7mΩ  
Maximum output capacitance: 8 x 100µF/10V X5R + 4 x 47µF/10V X7R + 6 x 470µF/7mΩ  
Figure 5.176 ZSPM1509 with Comp3; 3A to 8A Load Step;  
and Min. Capacitance  
Figure 5.177 ZSPM1509 with Comp3; 8A to 3A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3:(Violet): Load Trigger 5V/div DC  
Time Scale: 100µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 100µs/div  
Figure 5.178 ZSPM1509 with Comp3; 3A to 8A Load Step;  
and Max. Capacitance  
Figure 5.179 ZSPM1509 with Comp3; 8A to 3A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 100µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 100µs/div  
Figure 5.180 Open Loop Bode Plots for ZSPM1509 with Comp3  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
Frequency [kHz]  
0.1  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
82  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.37. ZSPM1511 – Typical Load Transient Response – Capacitor Range #1 – Comp0  
Test conditions: VIN = 12.0V, VOUT = 0.85V  
Minimum output capacitance: 2 x 100µF/6.3V X5R  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R  
Figure 5.181 ZSPM1511 with Comp0; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.182 ZSPM1511 with Comp0; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.183 ZSPM1511 with Comp0; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.184 ZSPM1511 with Comp0; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch4 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.185 Open Loop Bode Plots for ZSPM1511 with Comp0  
40  
30  
180  
Max Caps - Gain  
150  
Min Caps - Gain  
120  
90  
60  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
30  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
83  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.38. ZSPM1511 – Typical Load Transient Response – Capacitor Range #2 – Comp1  
Test conditions: VIN = 12.0V, VOUT = 0.85V  
Minimum output capacitance: 5 x 100µF/6.3V X5R  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R  
Figure 5.186 ZSPM1511 with Comp1; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.187 ZSPM1511 with Comp1; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.188 ZSPM1511 with Comp1; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.189 ZSPM1511 with Comp1; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.190 Open Loop Bode Plots for ZSPM1511 with Comp1  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
84  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.39. ZSPM1511 – Typical Load Transient Response – Capacitor Range #3 – Comp2  
Test conditions: VIN = 12.0V, VOUT = 0.85V  
Minimum output capacitance: 2 x 100µF/6.3V X5R + 2x 470µF/7mΩ  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R + 4 x 470µF/7mΩ  
Figure 5.191 ZSPM1511 with Comp2; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.192 ZSPM1511 with Comp2; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.193 ZSPM1511 with Comp2; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.194 ZSPM1511 with Comp2; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 10mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 10mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.195 Open Loop Bode Plots for ZSPM1511 with Comp2  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
85  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.40. ZSPM1511 – Typical Load Transient Response – Capacitor Range #4 – Comp3  
Test conditions: VIN = 12.0V, VOUT = 0.85V  
Minimum output capacitance: 5 x 100µF/6.3V X5R + 4 x 470µF/7mΩ  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R + 6 x 470µF/7mΩ  
Figure 5.196 ZSPM1511 with Comp3; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.197 ZSPM1511 with Comp3; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 4µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 4µs/div  
Figure 5.198 ZSPM1511 with Comp3; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.199 ZSPM1511 with Comp3; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 4µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 4µs/div  
Figure 5.200 Open Loop Bode Plots for ZSPM1511 with Comp3  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
1
10  
Frequency [kHz]  
100  
© 2016 Integrated Device Technology, Inc.  
86  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.41. ZSPM1512 – Typical Load Transient Response – Capacitor Range #1 – Comp0  
Test conditions: VIN = 12.0V, VOUT = 1.00V  
Minimum output capacitance: 2 x 100µF/6.3V X5R  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R  
Figure 5.201 ZSPM1512 with Comp0; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.202 ZSPM1512 with Comp0; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.203 ZSPM1512 with Comp0; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.204 ZSPM1512 with Comp0; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.205 Open Loop Bode Plots for ZSPM1512 with Comp0  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
1
10  
Frequency [kHz]  
100  
© 2016 Integrated Device Technology, Inc.  
87  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.42. ZSPM1512 – Typical Load Transient Response – Capacitor Range #2 – Comp1  
Test conditions: VIN = 12.0V, VOUT = 1.00V  
Minimum output capacitance: 5 x 100µF/6.3V X5R  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R  
Figure 5.206 ZSPM1512 with Comp1; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.207 ZSPM1512 with Comp1; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.208 ZSPM1512 with Comp1; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.209 ZSPM1512 with Comp1; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.210 Open Loop Bode Plots for ZSPM1512 with Comp1  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
1
10  
Frequency [kHz]  
100  
© 2016 Integrated Device Technology, Inc.  
88  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.43. ZSPM1512 – Typical Load Transient Response – Capacitor Range #3 – Comp2  
Test conditions: VIN = 12.0V, VOUT = 1.00V  
Minimum output capacitance: 2 x 100µF/6.3V X5R + 2 x 470µF/7mΩ  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R + 4 x 470µF/7mΩ  
Figure 5.211 ZSPM1512 with Comp2; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.212 ZSPM1512 with Comp2; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10 µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10 µs/div  
Figure 5.213 ZSPM1512 with Comp2; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.214 ZSPM1512 with Comp2; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 10mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 10mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.215 Open Loop Bode Plots for ZSPM1512 with Comp2  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
89  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.44. ZSPM1512 – Typical Load Transient Response – Capacitor Range #4 – Comp3  
Test conditions: VIN = 12.0V, VOUT = 1.00V  
Minimum output capacitance: 5 x 100µF/6.3V X5R + 4 x 470µF/7mΩ  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R + 6 x 470µF/7mΩ  
Figure 5.216 ZSPM1512 with Comp3; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.217 ZSPM1512 with Comp3; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.218 ZSPM1512 with Comp3; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.219 ZSPM1512 with Comp3; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.220 Open Loop Bode Plots for ZSPM1512 with Comp3  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
90  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.45. ZSPM1513 – Typical Load Transient Response – Capacitor Range #1 – Comp0  
Test conditions: VIN = 12.0V, VOUT = 1.20V  
Minimum output capacitance: 2 x 100µF/6.3V X5R  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R  
Figure 5.221 ZSPM1513 with Comp0; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.222 ZSPM1513 with Comp0; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.223 ZSPM1513 with Comp0; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.224 ZSPM1513 with Comp0; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.225 Open Loop Bode Plots for ZSPM1513 with Comp0  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
1
10  
Frequency [kHz]  
100  
© 2016 Integrated Device Technology, Inc.  
91  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.46. ZSPM1513 – Typical Load Transient Response – Capacitor Range #2 – Comp1  
Test conditions: VIN = 12.0V, VOUT = 1.20V  
Minimum output capacitance: 5 x 100µF/6.3V X5R  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R  
Figure 5.226 ZSPM1513 with Comp1; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.227 ZSPM1513 with Comp1; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 100mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.228 ZSPM1513 with Comp1; 5 to 15A Load Step;  
and Max. Capacitance  
Figure 5.229 ZSPM1513 with Comp1; 15 to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 50mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.230 Open Loop Bode Plots for ZSPM1513 with Comp1  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
1
10  
Frequency [kHz]  
100  
© 2016 Integrated Device Technology, Inc.  
92  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.47. ZSPM1513 – Typical Load Transient Response – Capacitor Range #3 – Comp2  
Test conditions: VIN = 12.0V, VOUT = 1.20V  
Minimum output capacitance: 2 x 100µF/6.3V X5R + 2 x 470µF/7mΩ  
Maximum output capacitance: 4 x 100µF/6.3V X5R + 2 x 47µF/10V X7R + 4 x 470µF/7mΩ  
Figure 5.231 ZSPM1513 with Comp2; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.232 ZSPM1513 with Comp2; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.233 ZSPM1513 with Comp2; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.234 ZSPM1513 with Comp2; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 10mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue):  
Ch2 (Cyan):  
VOUT 10mV/div AC  
PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.235 Open Loop Bode Plots for ZSPM1513 with Comp2  
Max Caps - Gain  
40  
30  
180  
150  
120  
90  
60  
30  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
1
10 Frequency [kHz]  
100  
© 2016 Integrated Device Technology, Inc.  
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January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.48. ZSPM1513 – Typical Load Transient Response – Capacitor Range #4 – Comp3  
Test conditions: VIN = 12.0V, VOUT = 1.20V  
Minimum output capacitance: 5 x 100µF/6.3V X5R + 4 x 470µF/7mΩ  
Maximum output capacitance: 8 x 100µF/6.3V X5R + 4 x 47µF/10V X7R + 6 x 470µF/7mΩ  
Figure 5.236 ZSPM1513 with Comp3; 5A to 15A Load Step;  
and Min. Capacitance  
Figure 5.237 ZSPM1513 with Comp3; 15A to 5A Load Step;  
and Min. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 4µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 4µs/div  
Figure 5.238 ZSPM1513 with Comp3; 5A to 15A Load Step;  
and Max. Capacitance  
Figure 5.239 ZSPM1513 with Comp3; 15A to 5A Load Step;  
and Max. Capacitance  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Ch1 (Blue): VOUT 20mV/div AC  
Ch2 (Cyan): PWM 5V/div DC  
Ch3 (Violet): Load Trigger 5V/div DC  
Time Scale: 10µs/div  
Figure 5.240 Open Loop Bode Plots for ZSPM1513 with Comp3  
40  
30  
180  
150  
120  
90  
60  
30  
Max Caps - Gain  
Min Caps - Gain  
Max Caps - Phase  
Min Caps - Phase  
20  
10  
0
0
-30  
-60  
-90  
-120  
-150  
-180  
-10  
-20  
-30  
-40  
Frequency [kHz]  
1
10  
100  
© 2016 Integrated Device Technology, Inc.  
94  
January 27, 2016  
 
 
 
 
 
 
ZSPM15xx Datasheet  
5.49. Typical Efficiency Curves – ZSPM1502 with ZSPM9000, ZSPM9015, and ZSPM9060 DrMOS  
The following graph shows typical efficiency curves for the ZSPM1502 with three different IDT DrMOS power  
stage options: the ZSPM9000, ZSPM9015, and ZSPM9060. (Note: The ZSPM1502 is also compatible with the  
ZSPM9010, which is not shown.)  
Figure 5.241 Typical Efficiency Curves: ZSPM1502 with ZSPM9000, ZSPM9015, and ZSPM9060 DrMOS (VIN= 12V;  
Vout = 1.0V)  
88.00%  
87.00%  
86.00%  
85.00%  
84.00%  
83.00%  
82.00%  
81.00%  
80.00%  
79.00%  
78.00%  
77.00%  
VIN = 12V  
Vout = 1.0V  
76.00%  
75.00%  
0
5
10  
15  
20  
25  
30  
35  
40  
45  
Iout (A)  
© 2016 Integrated Device Technology, Inc.  
95  
January 27, 2016  
 
 
ZSPM15xx Datasheet  
5.50. Typical Efficiency Curves – ZSPM9000 DrMOS with ZSPM1504, ZSPM1505, and ZSPM1506  
The following graph shows typical efficiency curves for the ZSPM9000 power stage with three different ZSPM15xx  
controllers: the ZSPM1504, ZSPM1505, and ZSPM1506.  
Figure 5.242 Typical Efficiency Curves: ZSPM9000 DrMOS with ZSPM1504, ZSPM1505, and ZSPM1506 (VIN = 12V)  
95  
90  
85  
80  
75  
70  
65  
VIN = 12V  
60  
0
5
10  
15  
20  
25  
30  
35  
Iout (A)  
© 2016 Integrated Device Technology, Inc.  
96  
January 27, 2016  
 
 
ZSPM15xx Datasheet  
5.51. Typical Efficiency Curves – ZSPM9000 and ZSPM9060 DrMOS with ZSPM1508  
and ZSPM1509  
The following graph shows typical efficiency curves for the ZSPM9000 and ZSPM9060 power stages with two  
different ZSPM15xx controllers: the ZSPM1508 and ZSPM1509.  
Figure 5.243 Typical Efficiency Curves: ZSPM9000 and ZSPM9060 DrMOS with ZSPM1508 and ZSPM1509  
100  
95  
90  
85  
80  
75  
70  
65  
VIN = 12V  
60  
0
2
4
6
8
10  
12  
14  
16  
Iout (A)  
© 2016 Integrated Device Technology, Inc.  
97  
January 27, 2016  
 
 
ZSPM15xx Datasheet  
5.52. Typical Efficiency Curves – ZSPM9000 and ZSPM9060 DrMOS with ZSPM1511, ZSPM1512,  
and ZSPM1513  
The following graph shows typical efficiency curves for the ZSPM9000 and ZSPM9060 power stages with three  
different ZSPM15xx controllers: the ZSPM1511, ZSPM1512, and ZSPM1513.  
Figure 5.244 Typical Efficiency Curves: ZSPM9000 and ZSPM9060 DrMOS with ZSPM1511, ZSPM1512, and ZSPM1513  
90  
85  
80  
75  
70  
65  
60  
55  
VIN = 12V  
50  
0
2
4
6
8
10  
12  
14  
16  
Iout (A)  
© 2016 Integrated Device Technology, Inc.  
98  
January 27, 2016  
 
 
ZSPM15xx Datasheet  
6
Mechanical Specifications  
Based on JEDEC MO-220. All dimensions are in millimeters.  
Figure 6.1  
24-Pin QFN Package Drawing  
Dimensions  
Minimum (mm)  
Maximum (mm)  
A
A1  
b
0.8  
0.90  
0.05  
0.30  
0.00  
0.18  
e
0.5 nominal  
HD  
HE  
L
3.90  
3.90  
0.35  
4.1  
4.1  
0.45  
© 2016 Integrated Device Technology, Inc.  
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January 27, 2016  
 
 
ZSPM15xx Datasheet  
7
Ordering Information  
Product Code  
Description  
Package  
ZSPM1501ZA1W0 ZSPM1501 lead-free QFN24; output voltage: 0.85V; inductance: 330nH; temperature: -40°C to +125°C  
ZSPM1502ZA1W0 ZSPM1502 lead-free QFN24; output voltage: 1.00V; inductance: 330nH; temperature: -40°C to +125°C  
ZSPM1503ZA1W0 ZSPM1503 lead-free QFN24; output voltage: 1.20V; inductance: 330nH; temperature: -40°C to +125°C  
ZSPM1504ZA1W0 ZSPM1504 lead-free QFN24; output voltage: 1.50V; inductance: 470nH; temperature: -40°C to +125°C  
ZSPM1505ZA1W0 ZSPM1505 lead-free QFN24; output voltage: 1.80V; inductance: 470nH; temperature: -40°C to +125°C  
ZSPM1506ZA1W0 ZSPM1506 lead-free QFN24; output voltage: 2.00V; inductance: 470nH; temperature: -40°C to +125°C  
Reel  
Reel  
Reel  
Reel  
Reel  
Reel  
ZSPM1507ZA1W0 ZSPM1507 lead-free QFN24; output voltage: 2.50V; inductance: 1000nH; temperature: -40°C to +125°C Reel  
ZSPM1508ZA1W0 ZSPM1508 lead-free QFN24; output voltage: 3.30V; inductance: 2200nH; temperature: -40°C to +125°C Reel  
ZSPM1509ZA1W0 ZSPM1509 lead-free QFN24; output voltage: 5.00V; inductance: 2200nH; temperature: -40°C to +125°C Reel  
ZSPM1511ZA1W0  
ZSPM1512ZA1W0  
ZSPM1513ZA1W0  
ZSPM1511 lead-free QFN24; output voltage: 0.85V; inductance: 680nH; temperature: -40°C to +125°C  
ZSPM1512 lead-free QFN24; output voltage: 1.00V; inductance: 680nH; temperature: -40°C to +125°C  
ZSPM1513 lead-free QFN24; output voltage: 1.20V; inductance: 680nH; temperature: -40°C to +125°C  
Reel  
Reel  
Reel  
8
Related Documents  
Document  
ZSPM15xx Family Feature Sheet  
ZSPM15XX-KIT01 Kit Description  
Visit the ZSPM15xx product page www.IDT.com/ZSPM15xx or contact your nearest sales office for the latest  
version of these documents.  
© 2016 Integrated Device Technology, Inc.  
100  
January 27, 2016  
 
 
ZSPM15xx Datasheet  
9
Glossary  
Term  
Description  
DCR  
DNP  
DPWM  
DSP  
FPGA  
HKADC  
OCP  
OT  
Equivalent DC Resistance  
Do Not Place (Component)  
Digital Pulse-Width Modulator  
Digital Signal Processing  
Field-Programmable Gate Array  
Housekeeping Analog-To-Digital Converter  
Over-Current Protection  
Over-Temperature  
OV  
Over-Voltage  
PID  
Proportional/Integral/Derivative  
State-Law Control™  
SLC  
SPM  
Smart Power Management  
10 Document Revision History  
Revision  
2.00  
Date  
Description  
November 24, 2014  
March 9, 2015  
April 27, 2015  
First release of full revision.  
2.10  
Addition of ZSPM1507, ZSPM1508, and ZSPM1509 to family of products.  
Addition of ZSPM1511, ZSPM1512, and ZSPM1513 to family of products.  
2.20  
Removal of references to Sub-cycle Response (SCR) as this is not activated in the  
ZSPM15xx.  
Addition of Table 4.10, Table 4.11, and Table 4.12 for CONFIG 1 settings for the  
ZSPM1507, ZSPM1508, and ZSPM1509 respectively.  
Correction of C9 to C10 in section 4.5.  
January 27, 2016  
Changed to IDT branding.  
Corporate Headquarters  
Sales  
Tech Support  
www.IDT.com/go/support  
6024 Silver Creek Valley Road  
San Jose, CA 95138  
www.IDT.com  
1-800-345-7015 or 408-284-8200  
Fax: 408-284-2775  
www.IDT.com/go/sales  
DISCLAIMER Integrated Device Technology, Inc. (IDT) reserves the right to modify the products and/or specifications described herein at any time, without notice, at IDT's sole discretion. Performance  
specifications and operating parameters of the described products are determined in an independent state and are not guaranteed to perform the same way when installed in customer products. The  
information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the suitability of IDT's products for any particular purpose, an  
implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any license under intellectual property  
rights of IDT or any third parties.  
IDT's products are not intended for use in applications involving extreme environmental conditions or in life support systems or similar devices where the failure or malfunction of an IDT product can be  
reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT.  
Integrated Device Technology, IDT and the IDT logo are trademarks or registered trademarks of IDT and its subsidiaries in the United States and other countries. Other trademarks used herein are the  
property of IDT or their respective third party owners. For datasheet type definitions and a glossary of common terms, visit www.idt.com/go/glossary. All contents of this document are copyright of Integrated  
Device Technology, Inc. All rights reserved.  
© 2016 Integrated Device Technology, Inc.  
101  
January 27, 2016  
 
 

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