MPQ8904DD-AEC1 [MPS]
Industrial/Automotive-Grade 500mA Linear Regulator AEC-Q100 Qualified;
| 型号： | MPQ8904DD-AEC1 |
| 厂家： | 
MONOLITHIC POWER SYSTEMS |
| 描述： | Industrial/Automotive-Grade 500mA Linear Regulator AEC-Q100 Qualified |
| 文件： | 总12页 (文件大小：879K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MPQ8904-AEC1
Industrial/Automotive-Grade
500mA Linear Regulator
AEC-Q100 Qualified
DESCRIPTION
FEATURES
The MPQ8904 is a low-current, low-dropout,
linear regulator that operates on a single 2.5V-
to-6.5V input supply. An external resistor
controls the output voltage. The MPQ8904 can
supply up to 500mA of load current. The enable
pin (EN) allows the part to enter a low-current
shutdown mode (EN=0). The MPQ8904
features thermal overload and current limit
protection. It is available in an 8-pin QFN
(2×3mm) package.
Power-Good Open Collector Output
Guaranteed Industrial/Automotive Temp.
Range Limits
Operates from a 2.5V-to-6.5V Input
Low 300mV Dropout at 500mA Output
Stable with Very Small Ceramic Capacitors
2.5% Feedback Reference
Adjustable Output Voltage from 0.5V to 5V
Better than 0.001%/mA Load Regulation
Stable with Low-ESR Output Capacitor
Low 140μA Ground Current
Internal Thermal Protection
Current Limit Protection
7µA Typical Quiescent Current at Shutdown
Available in AEC-Q100 Qualified Grade 1
APPLICATIONS
Low-Current Regulators
Battery-Powered Systems
Mobile Devices, such as Cell Phones and
GPS Navigators
All MPS parts are lead-free, halogen free, and adhere to the RoHS
directive. For MPS green status, please visit MPS website under Quality
Assurance.
“MPS” and “The Future of Analog IC Technology” are Registered
Trademarks of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
MPQ8904 Rev. 1.02
5/25/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
1
MPQ8904 –INDUSTRIAL-GRADE, 500mA LINEAR REGULATOR, AEC-Q100 QUALIFIED
ORDERING INFORMATION
Part Number
MPQ8904DD-AEC1*
MPQ8904DD**
Package
Top Marking
QFN-8 (2mm x 3mm)
See Below
* For Tape & Reel, add suffix –Z (e.g. MPQ8904DD-AEC1–Z);
For RoHS, compliant packaging, add suffix –LF (e.g. MPQ8904DD-AEC1–LF–Z).
** For Tape & Reel, add suffix -Z (e.g. MPQ8904DD-Z);
For RoHS, compliant packaging, add suffix -LF (e.g. MPQ8904DD-LF-Z).
TOP MARKING
T3: product code of MPQ8904DD and MPQ8904DD-AEC1;
Y: year code;
W: week code:
LLL: lot number;
PACKAGE REFERENCE
MPQ8904 Rev. 1.02
5/25/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
2
MPQ8904 –INDUSTRIAL-GRADE, 500mA LINEAR REGULATOR, AEC-Q100 QUALIFIED
Thermal Resistance (4)
QFN-8 (2mm x 3mm)..............55 ......12 ...°C/W
θJA θJC
ABSOLUTE MAXIMUM RATINGS (1)
IN, FB to GND ............................... -0.3V to +7V
EN to GND.............................-0.3V to VIN +0.3V
OUT......................................-0.3V to VIN + 0.3V
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ(MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD(MAX)=(TJ(MAX)-
TA)/ θJA. Exceeding the maximum allowable power dissipation
will cause excessive die temperature, and the regulator will go
into thermal shutdown. Internal thermal shutdown circuitry
protects the device from permanent damage.
(2)
Continuous Power Dissipation
(TA = +25°C)
……………………………………………….2.5W
Junction Temperature..............................150°C
Lead Temperature ...................................260°C
Storage Temperature ..............-65°C to +150°C
Recommended Operating Conditions (3)
Input Voltage VIN ............................ 2.5V to 6.5V
Output Voltage.................................. 0.5V to 5V
Load Current.......................... 500mA Maximum
Operating Junction Temp. (TJ). -40°C to +125°C
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on approximately 1” square of 1 oz copper.
MPQ8904 Rev. 1.02
5/25/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
3
MPQ8904 –INDUSTRIAL-GRADE, 500mA LINEAR REGULATOR, AEC-Q100 QUALIFIED
ELECTRICAL CHARACTERISTICS
VIN = 3.3V, VOUT = 1.2V, COUT = 4.7µF, CIN = 2.2µF, TJ = -40°C to +125°C, Typical value are TJ =
25°C, unless otherwise noted.
Parameter
Symbol Condition
IOUT = 1mA
Min
Typ (4)
Max
6.5
Units
V
Operating Voltage
2.5
IOUT = 1mA
IOUT = 500mA
VEN = 1.45V, VIN = 5V
TJ = +25°C
140
7
7
200
12
15
0.508
0.513
450
µA
mA
µA
Ground Pin Current(7)
Shutdown Current
FB Regulation Voltage
Dropout Voltage (8)
Line Regulation(6)
0.484 0.496
0.478 0.496
V
-40°C TJ +125°C
IOUT = 500mA
200
300
mV
%/V
IOUT
=
1mA,
-0.1
0.015
0.1
0.1
1
VIN = (VOUT + 0.5V) to 6.5V (7)
IOUT = 1mA to 500mA,
VIN = VOUT + 0.5V
Load Regulation(6)
-0.1
0.005
0.5
%/mA
Power-Good Output Voltage,
Low9
VOL
Isink = 0.5mA
0
V
V
EN Input, High
1.2
V
EN Input, Low
0.4
1
μA
EN Input Bias Current
Thermal Protection(5)
VEN = 1.5V
0.05
155
850
°C
Current Limit
650
mA
Notes:
5) Parameter is guaranteed by design, not production tested.
6) Resistors for VOUT measurement are 10kΩ, 14kΩ, 1%
7) The ground current does not include current through feedback current
8) Dropout Voltage is defined as the input to output differential when the output voltage drops 1% below its nominal value
9) VFEEDBACK is 90% of the regulated value with 10kΩ pull-up to 5V
MPQ8904 Rev. 1.02
5/25/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
4
MPQ8904 –INDUSTRIAL-GRADE, 500mA LINEAR REGULATOR, AEC-Q100 QUALIFIED
TYPICAL PERFORMANCE CHARACTERISTICS
Based on the Figure Typical Application Circuit
C1=2.2μF, C2 =4.7μF, C3=1nF, TA = +25°C, unless otherwise noted.
MPQ8904 Rev. 1.02
5/25/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
5
MPQ8904 –INDUSTRIAL-GRADE, 500mA LINEAR REGULATOR, AEC-Q100 QUALIFIED
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
C1=2.2μF, C2 =4.7μF, C3=1nF, TA = +25°C, unless otherwise noted.
MPQ8904 Rev. 1.02
5/25/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
6
MPQ8904 –INDUSTRIAL-GRADE, 500mA LINEAR REGULATOR, AEC-Q100 QUALIFIED
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
C1=2.2μF, C2 =4.7μF, C3=1nF, TA = +25°C, unless otherwise noted.
MPQ8904 Rev. 1.02
5/25/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
7
MPQ8904 –INDUSTRIAL-GRADE, 500mA LINEAR REGULATOR, AEC-Q100 QUALIFIED
PIN FUNCTIONS
Pin #
Name
Description
1
OUT
Regulator Output. Bypass OUT to GND with a ≥4.7μF capacitor.
2
NC
PG
No connect.
Power-Good Open Collector Output. Monitors the regulator output. If the regulator
output falls below 10% of its regulation point, the power-good pin goes low.
Feedback. Connect a resistive voltage divider from OUT to FB to set the output
voltage. OUT feedback threshold is 0.5V.
Enable Input. Drive EN above 1.2V to turn on the MPQ8904. Drive EN below 0.4V to
turn it off.
3
4
FB
EN
5
6
7
GND
NC
Ground.
No connect.
Power Source Input. IN supplies the internal power to the MPQ8904 and is the
source for the pass transistor. Bypass IN to GND with a ≥2.2μF capacitor.
8
IN
Exposed
Pad
Connect to GND.
OPERATION
The MPQ8904 is a low-current, low-voltage,
low-dropout, linear regulator. It is intended for
devices that require very low voltage and low
quiescent current power, such as wireless
modems and cellular phones.
The MPQ8904 uses a PNP pass element and
features internal thermal shutdown and internal
current limit circuit.
Figure 1: Functional Block Diagram
MPQ8904 Rev. 1.02
5/25/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
8
MPQ8904 –INDUSTRIAL-GRADE, 500mA LINEAR REGULATOR, AEC-Q100 QUALIFIED
APPLICATION INFORMATION
Setting the Output Voltage
2
2.5
2.8
3
30k
40k
46k
50k
56k
70k
90k
The MPQ8904 has an adjustable output voltage
set via an external resistor divider (R1 and R2
in Figure).
3.3
4
VOUT VFB
R1 R2
VFB
5
where VFB = 0.5V is the OUT feedback
threshold voltage.
Bypass Capacitors
Bypass the reference voltage can be bypassed
with an external capacitor to reduce noise. Use
a low-ESR ceramic capacitor for the best
performance.
Example: For a 2.5V output and R2=10kΩ
2.5 0.5
R1 10k
40k
0.5
Fast Power On
The MPQ8904 may need an RC circuit to slow
down the fast power on if the power on time is
less than 100μs (see Figure 2). The typical
resistor (R4) value is 100kΩ and the typical
capacitor (C3) value is 10nF.
Use a standard 40kΩ (1%) resistor for R1.
Table 1 lists selected R1 values for typical
output voltages (R2 = 10kΩ).
Power-Good
VIN
The power-good (PG) pin monitors the output
voltage; if the output voltage goes below 10% of
its regulation point, the PG pin goes low. The
PG pin is an open collector output that connects
to a pull-up resistor (typically 10kΩ). Tie the
pull-up resistor to 0V-to-5.5V supply, such as
regulated input voltage.
VOUT
8
2
5
3
1
4
7
6
VIN
NC
VOUT
FB
C1
2.2uF
R1 C3
NC
C2
MPQ8904
GND
R3
4.7uF
10KΩ
R4
GND
100KΩ
R2
EN
NC
EN
PG
C3
10nF
PG
GND
Table 1: Adjustable Output Voltage Values vs. R1
GND
(R2 =10kΩ)
GND
VOUT (V)
1.25
1.5
R1 (Ω)
15k
Figure 2: Fast Power-On Start-Up Circuit
20k
1.8
26k
MPQ8904 Rev. 1.02
5/25/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
9
MPQ8904 –INDUSTRIAL-GRADE, 500mA LINEAR REGULATOR, AEC-Q100 QUALIFIED
TYPICAL APPLICATION CIRCUIT
Figure 3: Typical Application Circuit
MPQ8904 Rev. 1.02
5/25/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
10
MPQ8904 –INDUSTRIAL-GRADE, 500mA LINEAR REGULATOR, AEC-Q100 QUALIFIED
PCB layout guide
PCB layout is very important to achieve good
regulation, ripple rejection, transient response
2) Use short and direct feedback connections.
Place the feedback resistors and
and
thermal
performance.
For
optimal
compensation components as close to the
chip as possible.
performance, duplicate the EVB layout from
Figure.
3) Connect IN, OUT and GND to large copper
surfaces to help cool the chip to improve
For any changes, follow the guidelines below:
thermal
reliability.
performance
and
long-term
1) Place the input and output ceramic bypass
capacitors close to their respective IN and
OUT pins.
C2
OUT
IN
IN
1
2
3
4
8
OUT
NC
NC
7
6
5
R1
R2
C3
GND
EN
PG
FB
R3
C1
GND
Figure 4: PCB Layout, Top Layer
MPQ8904 Rev. 1.02
5/25/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
11
MPQ8904 –INDUSTRIAL-GRADE, 500mA LINEAR REGULATOR, AEC-Q100 QUALIFIED
PACKAGE INFORMATION
QFN-8 (2mm x 3mm)
NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third
party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not
assume any legal responsibility for any said applications.
MPQ8904 Rev. 1.02
5/25/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
12
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