MP6401
300mA LDO Linear Regulator with
Integrated Reset Circuit
The Future of Analog IC Technology
DESCRIPTION
FEATURES
The MP6401 combines a low-dropout linear
regulator with an integrated reset circuit. It
operates from a 2.5V to 5.5V input voltage and
regulates the output voltage with 2% accuracy
at 1.8V, 2.5V, 3.3V or adjustable value. It
delivers up to 300mA of load current. By
combining an LDO linear regulator with a reset
circuit, these products can reduce cost and save
space in compact portable devices such as cell
phones, smart phones, PDAs, PMPs, and
portable GPS devices.
The MP6401 provides a push-pull, active-low
that asserts when the regulator output voltage
drops below the microprocessor supply
threshold (-7.5% or -12.5% of nominal output
voltage). Four reset delay time, 3.125ms, 25ms,
200ms and 1580ms can be selected. The
MP6401 is available in 3mmx3mm TQFN8,
2mmx2mm TQFN6 and TSOT packages and is
specified for operation from -40°C to 85°C.
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Low Quiescent Current of 80μA for Battery
Powered Equipment
Low 114mV Dropout at 300mA Output
±2％ Accurate Output Voltage
Fixed Output Voltage Options of 1.8V, 2.5V
or 3.3V
Adjustable Output Voltage from 1.229V to
5V Using an External Resistor Divider
15μVRMS Ultra Low Noise Output
PSRR: 57dB at 1kHz
Input Reverse Current, Thermal and
Short-Circuit Protection
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Microprocessor Reset with Four Delay time
Options
Push-Pull
RESET
APPLICATIONS
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Smart Phone and Cell Phone
Portable GPS Devices
Wireless Devices
PDA and PMP
All MPS parts are lead-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
2.5V to 5.5V
IN
V
I/O
OUT
MP6401
ADJ
C
IN
R1
uP
EN
RESET
GND
RESET
GND
C
OUT
MP6401 Rev. 1.0
9/7/2012
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
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