MP2040 –FAST TRANSIENT RESPONSE, 3A VERY LOW DROPOUT LINEAR REGULATOR
MP2040 Rev.1.0 www.MonolithicPower.com 2
9/21/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
ORDERING INFORMATION
Part Number Package Top Marking Free Air Tem perature (TA)
MP2040DQ* 3x3 QFN10 7D -40°C to +85°C
MP2040DU** 5x5 QFN32 MP2040DU -40°C to +85°C
* For Tape & Reel, add suffix –Z (e.g. MP2040DQ–Z).
For RoHS compliant packaging, add suffix –LF (e.g. MP2040DQ–LF–Z)
** For Tape & Reel, add suffix –Z (e.g. MP2040DU–Z).
For RoHS compliant packaging, add suffix –LF (e.g. MP2040DU–LF–Z)
PACKAGE REFERENCE
TOP VIEW
VIN
VIN
BIAS
PGOOD
GND
1
2
3
4
5
VOUT
VOUT
FB
EN
BYPASS
10
9
8
7
6
EXPOSED PAD
ON BACKSIDE
TOP VIEW
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
N/C
VIN
VIN
VIN
VIN
BIAS
PGOOD
GND
N/C
VOUT
VOUT
VOUT
VOUT
FB
EN
BYPASS
N/C N/C N/C N/C N/C N/C N/C N/C
N/C N/C N/C N/C N/C N/C N/C N/C
910111213141516
32 31 30 29 28 27 26 25
EXPOSED PAD
ON BACKSIDE
3x3 QFN10 5x5 QFN32
ABSOLUTE MAXIMUM RATINGS (1)
VBIAS, VIN to GND.............................-0.3V to +6V
FB, EN, to GND ................................-0.3V to 6V
VOUT................................-0.3V to VIN + 0.3 or 6V
PGOOD ......................-0.3V to VBIAS + 0.3 or 6V
BYPASS ......................-0.3V to VBIAS +0.3 or 6V
Continuous Power Dissipation (TA = +25°C) (2)
QFN10 3X3................................................ 2.5W
QFN32 5X5.............................................. 3.47W
Junction Temperature...............................150°C
Lead Temperature ....................................260°C
Storage Temperature .............. -65°C to +150°C
Recommended Operating Conditions (3)
Input Voltage VIN .............................1.1V to 5.5V
Input Voltage VBIAS ..........................3.3V to 5.5V
Output Voltage................................0.9V to 3.3V
Load Current...............................3.0A Maximum
Operating Junct. Temp (TJ)...... -40°C to +125°C
Thermal Resistance (4) θJA θJC
QFN10 3X3… ......................... 50……12 °C/W
QFN32 5X5… ......................... 36….…8 °C/W
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 powe
dissipation will cause excessive die temperature, and the
regulator will go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.