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AAT3215

150mA CMOS High Performance LDO

General Description

The AAT3215 MicroPower鈩?Low Dropout Linear

Regulator is ideally suited for portable applications

where low noise, extended battery life and small

size are critical. The AAT3215 has been specifi-

cally designed for very low output noise perform-

ance, fast transient response and high power sup-

ply rejection ratio (PSRR), making it ideal for pow-

ering sensitive RF circuits.

Other features include low quiescent current, typi-

cally 95碌A(chǔ), and low dropout voltage which is typi-

cally less than 140mV at full output current. The

device is output short circuit protected and has a

thermal shutdown circuit for additional protection

under extreme conditions.

The AAT3215 also features a low-power shutdown

mode for extended battery life. A reference bypass

pin has been provided to improve PSRR perform-

ance and output noise, by connecting an external

capacitor from the AAT3215's reference output to

ground.

The AAT3215 is available in a space saving 5-pin

SOT-23 or 8-pin SC70-JW package in 8 factory

programmed voltages of 2.5V, 2.7V, 2.8V, 2.85V,

2.9V, 3.0V, 3.3V, or 3.5V.

Features

鈥?/div>

PowerLinear

鈩?/div>

鈥?/div>

Low Dropout - 140mV at 150mA

Guaranteed 150mA Output

High accuracy 鹵1.5%

95碌A(chǔ) Quiescent Current

High Power Supply Ripple Rejection

鈥?70 dB at 1kHz

鈥?50 dB at 10kHz

Very low self noise 45碌Vrms/rtHz

Fast line and load transient response

Short circuit protection

Over-Temperature protection

Uses Low ESR ceramic capacitors

Noise reduction bypass capacitor

Shutdown mode for longer battery life

Low temperature coefficient

8 Factory programmed output voltages

SOT-23 5-pin or SC70-JW 8-pin package

Preliminary Information

Applications

鈥?/div>

Cellular Phones

Notebook Computers

Portable Communication Devices

Personal Portable Electronics

Digital Cameras

Typical Application

V

IN

OUT

V

OUT

AAT3215

ON/OFF

EN

GND

1碌F

10nF

2.2碌F

BYP

GND

3215.2002.03.0.91

1

型號(hào)

版本

描述

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