AAT3258ITS-3.3-R-T1 datasheet, PDF

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AAT3258ITS-3.3-R-T1: Description300mA LDO Linear Regulator with レP Reset; File Size263KB，16 Pages; ManufacturerAnalogicTech; Websitehttp://www.analogictech.com/

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AAT3258ITS-3.3-R-T1 Overview

300mA LDO Linear Regulator with レP Reset

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AAT3258

300mA LDO Linear Regulator with µP Reset

General Description

The AAT3258 combines a high performance, low

noise, 300mA low dropout (LDO) linear regulator

with a microprocessor reset monitor. The 300mA

output capability of the LDO regulator makes this

device ideal for use with microprocessors and DSP

cores in portable products. The microprocessor

reset monitor section has very low quiescent cur-

rent consumption and has an active low reset out-

put. The AAT3258 has separate input pins for the

reset monitor and LDO regulator so they may be

operated from independent sources for increased

design flexibility. This device features very low qui-

escent current, typically less than 71µA.

The LDO regulator has low dropout voltage, typical-

ly 400mV at the full output current level, making it

ideal for portable applications where extended bat-

tery life is critical. The AAT3258 LDO regulator sec-

tion has complete over-current/short-circuit and

over-temperature protection circuits to guard against

extreme operating conditions. The device also has

an active output pull down function when disabled.

The AAT3258 is available in a Pb-free, space-sav-

ing 8-pin TSOPJW package. This device is capa-

ble of operation over a -40°C to +85°C temperature

range.

Features

•

PowerLinear

™

Integrated LDO Regulator with µP Reset

300mA Output LDO Regulator

Low Dropout Regulator, 400mV at 300mA

High LDO Output Voltage Accuracy, Typically

1.5%

Very Low Noise and High Power Supply

Rejection Ratio (PSRR) LDO

Low Quiescent Current at 71µA

LDO Over-Current/Short-Circuit Protection

LDO Over-Temperature Protection

LDO Power Saving Shutdown Mode

Independent Device Power Inputs

High Accuracy Reset Monitor Threshold: ±1.5%

Active Low Push-Pull Monitor Reset Output

<2.0µA of Shutdown Current

Uses Low Equivalent Series Resistance

(ESR) Ceramic Capacitors

-40°C to +85°C Temperature Range

8-Pin TSOPJW Package

Applications

•

Cellular Phones

Digital Cameras

Handheld Instrumentation

Microprocessor/DSP Core/IO Power

Notebook Computers

PDAs and Handheld Computers

Portable Communication Devices

Typical Application

100k

VIN

VDET

RESET

RESET OUT

VIN

µP Reset

Manual Reset

VOUT

LDO VOUT

AAT3258

GND

1µF

LDO Shutdown

SHDN

BYP

10nF

2.2µF

3258.2006.03.1.6

AAT3258ITS-3.3-R-T1 Related Products

	AAT3258ITS-3.3-R-T1	AAT3258ITS-2.8-Y-T1	AAT3258ITS-2.8-R-T1	AAT3258_06	AAT3258	AAT3258ITS-3.0-R-T1
Description	300mA LDO Linear Regulator with レP Reset	300mA LDO Linear Regulator with レP Reset	300mA LDO Linear Regulator with レP Reset	300mA LDO Linear Regulator with レP Reset	300mA LDO Linear Regulator with レP Reset	300mA LDO Linear Regulator with レP Reset

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