MP6402

Dual, High PSRR 500mA Linear Regulator

With Integrated Reset Circuit

MP6402 Rev.1.0

www. MonolithicPower.com

1

4/8/2011

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2011 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP6402 is a dual-channel, high PSRR

linear regulator with reset function.

The outputs range from 0.9V and 3.3V with

operating from a +2.5V to +5.5V input. OUT2

pin voltage is recommended to be higher than

OUT1 pin voltage. Short circuit protection and

thermal protection are built in to prevent

damage caused by output short circuit and

overloading, respectively.

A reset circuit is designed to monitor output

voltage of channel 2. The

R E S E T

becomes

active (low) when OUT2 pin voltage drops

below its threshold. To ensure that a complete

reset occurs, the

R E S E T

remains active for a

pre-set

delay

time.

The

delay

time

is

programmable by the user through changing

the external capacitor. The MP6402 is available

in SOIC8E and 3x3mm TQFN8 packages and

J

from -40

°C to

+125

°C.

FEATURES

• Up to 500mA Output Current

• High Output Voltage Accuracy (±1.5％)

• High Reset Voltage Accuracy (±3％)

• Programmable Reset Delay Time

• High PSRR: 60dB at 100Hz

• Built-in Short Circuit Protection

• Built-in Thermal Protection

• Output Discharge

• SOIC8E and 3x3mm TQFN8

APPLICATIONS

• Consumer electronics

• Blu-ray

• Portable GPS Devices

• Wireless Devices

“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

MP6402

IN

IN

RESET

OUT1

OUT2

EN

GND

ExtCap

RESET

5V

EN

C4

3300pF

R1

22.1k