MP1531DM-Z [MPS]
Switching Regulator, Current-mode, 0.65A, 300kHz Switching Freq-Max, PDSO16, MO-153AB, TSSOP-16;
| 型号： | MP1531DM-Z |
| 厂家： | 
MONOLITHIC POWER SYSTEMS |
| 描述： | Switching Regulator, Current-mode, 0.65A, 300kHz Switching Freq-Max, PDSO16, MO-153AB, TSSOP-16 泵 |
| 文件： | 总5页 (文件大小：264K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
EV1531DQ-002A
Low Power, Triple Output Step-Up
Plus Charge Pump for TFT Bias
Monolithic Power Systems
EVALUATION BOARD – INITIAL RELEASE
GENERAL DESCRIPTION
FEATURES
The EV1531DQ-002A Evaluation Board is
designed to demonstrate the capabilities of
MPS’ MP1531 triple output step-up converter
with charge-pumps.
•
•
•
2.7V to 5.5V Operating Input Range
500mA Switch Current Limit
3 Outputs in Single Package
•
•
•
Step-Up Converter up to 22V
Positive 10mA Linear Regulator
Negative 10mA Linear Regulator
The MP1531 includes a 250KHz fixed-frequency
step-up converter and a positive and negative
linear regulator. The linear regulators are
powered via charge-pumps driven by the step-up
converter switch node.
•
•
•
•
•
•
•
•
•
•
•
•
250mΩ Internal Power MOSFET Switch
Up to 95% Efficiency
1µA Shutdown Mode
Fixed 250KHz Frequency
Positive Regulator up to 38V
Negative Regulator down to -20V
Internal Power-On Sequencing
Adjustable Soft-Start/Fault Timer
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Under Voltage Lockout
Ready Flag
A single on/off control enables all 3 outputs.
The outputs are internally sequenced at power-
on for ease of use. An internal soft-start
prevents overloading the input source at
startup. Cycle-by-cycle current limit reduces
component stress.
ELECTRICAL SPECIFICATION
Parameter
Symbol Value Units
Input Voltage
VIN
VMAIN
IMAIN
VGH
IGH
2.7-5.5
V
V
mA
V
mA
V
APPLICATIONS
Main Output Voltage
Main Output Current
(+) Charge Pump Voltage
(+) Charge Pump Current
(–) Charge Pump Voltage
(–) Charge Pump Current
5
100
15
5
–10
5
•
•
•
•
TFT LCD Displays
Portable DVD Players
Tablet PCs
Car Navigation Displays
VGL
IGL
mA
, “MPS”, “Monolithic Power Systems”, and “The Future of Analog IC
Technology” are Registered Trademarks of Monolithic Power Systems, Inc.
EV1531DQ-002A EVALUATION BOARD
Efficiency vs Load Current
Delivered by Step-Up Converter
100
V
= 4.2V
IN
90
80
70
60
50
40
30
20
V
= 3.3V
IN
V
= 5V
MAIN
Dimensions (2.34”X x 2.25”Y x 0.50”Z)
0
100 200 300 400 500 600
LOAD CURRENT (mA)
Board Number
MPS IC Number
EV1531DQ-002A
MP1531
MP1531-EC01
10/04, Rev. 1.1
www.MonolithicPower.com
1
EV1531DQ-002A – LOW PWR, TRI-OUTPUT STEP-UP + CHARGE PUMP FOR TFT BIAS
EVALUATION BOARD – INITIAL RELEASE
EVALUATION BOARD SCHEMATIC
D3
D8
D9
BAS40-04-7
BAS40-04-7
BAS40-04-7
D7
BAS40-04-7
D4
BAS40-04-7
V
+15V
D2
SW
C13
NS
GH
C25
NS
BAS40-04-7
C26
NS
D6
NS
D5
NS
GND
C21
NS
V
-10V
GL
D1
B0530W
1
2
3
SW
PGND IN3
GH
IN2
U1
JP1
V
MAIN
+5V
SW
GL
EN
C2
10nF
C11
56pF
GND
CT
EN
MP1531
GND
RDY
FB1
FB3
RDY
FB2
GND REF
COMP IN
V
IN
2.7V-4.2V
C9
56pF
GND
C4
NS
C5
10nF
EV1531_S01
EV1531DQ-002A BILL OF MATERIALS
Qty
Ref
Description
Manufacturer P/N
Distributor P/N
6
D2, D3,
Schottky Diodes, Dual, Diodes Inc: BAS40-04-7
Digikey
D4,D7,D8,D9 40V, 200mA, SOT-23
BAS40-04DICT-ND
1
D1
Schottky Diode, 30V, 0.5A, Diodes Inc: B0530W
Digikey:
SOD-123
B0530WDICT-ND
2
5
D5,D6
C4,C13,C21,C NS
25,C26
NS
12
C12,C14,C15, Ceramic Capacitor, 0.33µF, AVX: 08055C334KAT2A
Digikey:
C16,C17,C18, 50V, 0805, X7R
478-1402-1-ND
C19,C20,
C22,C23,C24,
C27
1
C3
Ceramic Capacitor, 10µF, AVX:1210ZC106KAT2A
10V, 1210, X5R
Digikey:
478-1625-1-ND
10/04, Rev. 1.1
www.MonolithicPower.com
2
EV1531DQ-002A – LOW PWR, TRI-OUTPUT STEP-UP + CHARGE PUMP FOR TFT BIAS
EVALUATION BOARD – INITIAL RELEASE
EV1531DQ-002A BILL OF MATERIALS (continued)
Qty
Ref
Description
Manufacturer P/N
Distributor P/N
1
C1
Ceramic Capacitor, 22µF, AVX:1210ZD226KAT2A
10V, 1210, X5R
Digikey:
478-1632-1-ND
2
2
2
2
C8,C10
C2, C5
C6,C7
Ceramic Capacitor, 1µF, AVX:12063C105KAT2A
25V, 1206, X7R
Ceramic Capacitor, 10nF, AVX:0805C103KAT2A
50V, 0805, X7R
Ceramic Capacitor, 0.1µF, AVX:08055C104KAT2A
50V, 0805, X7R
Ceramic Capacitor, 56pF, AVX:08055A560JAT2A
50V, 0805, NPO
Digikey:
478-1567-1-ND
Digikey:
478-1383-1-ND
Digikey:
478-1395-1-ND
Digikey:
478-1313-1-ND
C9,C11
1
1
2
L1
U1
R1,R11
Inductor, 33µH, 740mA
MP1531DQ, QFN16
Coicraft:LP06013--333KX
MPS: MP1531DQ
Resistor, 100kΩ, 0805, 5% Panasonic: ERJ-6GEYJ104V Digikey:
P100KACT-ND
Digikey:
P5.6KCCT-ND
Resistor, 30.1kΩ, 0805, 1% Panasonic: ERJ-6GEYJ303V Digikey:
P30KACT-ND
Panasonic: ERJ-6GEYJ103V Digikey:
P10KACT-ND
Resistor, 110kΩ, 0805, 1% Panasonic: ERJ-6GEY114V Digikey:
P110KACT-ND
Panasonic: ERJ-6GEYJ100V Digikey:
P10ACT-ND
Resistor, 80.6kΩ, 0805, 1% Panasonic: ERJ-6ENF8062V Digikey:
P80.6KCCT-ND
Digikey:
S9000-ND
1
1
3
1
2
1
1
R4
R2
Resistor, 5.6kΩ, 0805, 5% Panasonic: ERJ-6ENF562V
R3,R5,R8
R9
Resistor, 10kΩ, 0805, 1%
R6,R10
R7
Resistor, 10Ω, 0805, 5%
JP1
Conn Jumper
Sullins: STC02SYAN
10/04, Rev. 1.1
www.MonolithicPower.com
3
EV1531DQ-002A – LOW PWR, TRI-OUTPUT STEP-UP + CHARGE PUMP FOR TFT BIAS
EVALUATION BOARD – INITIAL RELEASE
PRINTED CIRCUIT BOARD LAYOUT
Figure 1—Top Silk Layer
Figure 2—Top Layer
Figure 3—Bottom Layer
10/04, Rev. 1.1
www.MonolithicPower.com
4
EV1531DQ-002A – LOW PWR, TRI-OUTPUT STEP-UP + CHARGE PUMP FOR TFT BIAS
EVALUATION BOARD – INITIAL RELEASE
TEST RESULTS
Power-Up Sequencing
V
= 3.3V, V
= 5V, I = 100mA,
Load Transient
IN
MAIN
MAIN
Efficiency vs Load Current
V
= 3.3V, V
= 5V, 5mA-50mA STEP
V
= 15V, I = 5mA, V = -10V, I = 5mA,
GH GL GL
GH
=10nF
IN
MAIN
C
V
= 15V, I = 5mA, V = -10V, I = 5mA
GH GL GL
Delivered by Step-Up Converter
CT
GH
100
90
80
70
60
50
40
30
20
V
= 4.2V
IN
V
= 3.3V
IN
V
V
EN
MAIN
5V/div
50mV/div
V
MAIN
5V/div
V
GH
10V/div
I
V
MAIN
GL
50mA/div
10V/div
V
= 5V
MAIN
0
100 200 300 400 500 600
10ms/div
MP1531_WF01
MP1531_WF02
LOAD CURRENT (mA)
MP1531-TPC01
QUICK START GUIDE
The three output voltages of this board are set to +5V, +15V, and -10V. The board layout
accommodates most commonly used inductors and output capacitors.
1. Make sure Jumper JP1 is connected between 2 and 3.
2. Attach positive end of loads to VMAIN, VGH,and VGL pins respectively. Attach negative end of
loads to GND pins.
3. Attach input voltage 2.7V ≤ VIN ≤ 5.5V and input ground to VIN and GND pins respectively.
4. During startup RDY will be left HIGH. Once the turn-on sequence is complete, this pin will be
pulled low if all regulators exceed 80% of their specified voltages. After all regulators are turned
on, a fault in any regulator will cause RDY to go LOW after approximately 15µs. If the fault
persists for more than approximately 6ms (for CCT = 10nF), the entire chip will shut down.
NOTICE: MPS believes the information in this document to be accurate and reliable. However, it is subject to change without
notice. Contact MPS for current specifications. MPS encourages users of its products to ensure that third party Intellectual
Property rights are not infringed upon when integrating MPS products into any application. MPS cannot assume any legal
responsibility for any said applications.
EV1531DQ-002A Rev. 1.1
10/13/04
© 2004 MPS, Inc.
Monolithic Power Systems, Inc.
983 University Avenue, Building A, Los Gatos, CA 95032 USA
Tel: 408-357-6600 ♦ Fax: 408-357-6601 ♦ www.MonolithicPower.com
5
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