AAT3237BIGU-2.85-T1 Advanced Analogic Technologies, Inc., AAT3237BIGU-2.85-T1 Datasheet

AAT3237BIGU-2.85-T1

Manufacturer Part Number

AAT3237BIGU-2.85-T1

Description

Manufacturer

Advanced Analogic Technologies, Inc.

Datasheet

1.AAT3237B.pdf (12 pages)

Specifications of AAT3237BIGU-2.85-T1

Date_code

04+

Packing_info

SOT-163

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Company:

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Part Number:

AAT3237BIGU-2.85-T1

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General Description

The AAT3237B MicroPower low dropout (LDO) lin-

ear regulator is ideally suited for portable applica-

tions where low noise, extended battery life, and

small size are critical. The AAT3237B has been

specifically designed for low output noise perform-

ance, fast transient response, and high power sup-

ply rejection ratio (PSRR).

Other features include low quiescent current, typi-

cally 70µA, and low dropout voltage, typically less

than 400mV at full output current. The device is

output short-circuit protected and has a thermal

shutdown circuit for additional protection under

extreme conditions.

The AAT3237B also features a low-power shutdown

mode for extended battery life. A Power-OK open-

drain output signals when V

The AAT3237B is available in a Pb-free, space-

saving 6-pin SOT23 package and is rated over the

-40°C to +85°C temperature range.

Typical Application

3237B.2006.01.1.3

GND

1µF

OUT

ON/OFF

is in regulation.

AAT3237

LDO Linear Regulator with Power-OK

GND

Features

•

Applications

•

Low Dropout: 400mV at 300mA

Guaranteed 300mA Output

High Accuracy: ±1.5%

70µA Quiescent Current

High Power Supply Ripple Rejection

Power-OK (POK) Output

Fast Line and Load Transient Response

Short-Circuit Protection

Over-Temperature Protection

Uses Low Equivalent Series Resistance

(ESR) Ceramic Capacitors

Shutdown Mode for Longer Battery Life

Low Temperature Coefficient

Factory-Programmed Output Voltages

SOT23 6-Pin Package

Cellular Phones

Desktop Computers

Digital Cameras

Notebook Computers

Personal Portable Electronics

Portable Communication Devices

OUT

POK

300mA MicroPower™

100k

SmartSwitch

PowerLinear

2.2µF

AAT3237B

GND

POK

OUT

™

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