AAT3242ITP-IP-T1 Advanced Analogic Technologies, Inc., AAT3242ITP-IP-T1 Datasheet

AAT3242ITP-IP-T1

Manufacturer Part Number

AAT3242ITP-IP-T1

Description

Manufacturer

Advanced Analogic Technologies, Inc.

Datasheets

1.AAT3242ITP-IP-T1.pdf (16 pages)

2.AAT3242ITP-IP-T1.pdf (15 pages)

Specifications of AAT3242ITP-IP-T1

Date_code

06+

Packing_info

TSOPJW-12

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General Description

The AAT3242 is a dual low dropout linear regulator with

Power OK (POK) outputs. Two integrated regulators pro-

vide a high power 300mA output and a lower power

150mA output, making this device ideal for use with

microprocessors and DSP cores in portable products.

Two POK pins provide open drain output signals when

their respective regulator output is within regulation.

The AAT3242 has independent input voltage and enable

pins for increased design flexibility. This device features

a very low quiescent current (140μA typical) and low

dropout voltages (typically 200mV and 400mV at the full

output current level), making it ideal for portable appli-

cations where extended battery life is critical. The

AAT3242 has complete over-current/short-circuit and

over-temperature protection circuits to guard against

extreme operating conditions.

The AAT3242 is available in the space-saving, Pb-free,

12-pin TSOPJW and TDFN33 packages. This device is

capable of operation over the -40°C to +85°C tempera-

ture range.

Typical Application

VIN

3242.2008.08.1.11

PowerLinear

Enable A

Enable B

INA

ENA

INB

ENB

AAT3242

w w w . a n a l o g i c t e c h . c o m

300mA/150mA Dual CMOS LDO Linear Regulator

OUTA

POKA

OUTB

POKB

GND

Features

• High/Low Current Outputs, 300mA/150mA

• Low Dropout:

• High Output Voltage Accuracy: ±1.5%

• High PSRR: 65dB at 1kHz

• 70μA Quiescent Current for Each LDO

• Over-Current/Short-Circuit Protection

• Over-Temperature Protection

• Two POK Outputs

• Independent Power and Enable Inputs

• Uses Low Equivalent Series Resistance (ESR) Ceramic

• 12-Pin TSOPJW and TDFN33 Packages

• -40°C to +85°C Temperature Range

Applications

• Cellular Phones

• Digital Cameras

• Handheld Instruments

• Microprocessor / DSP Core / I/O Power

• Notebook Computers

• PDAs and Handheld Computers

• Portable Communication Devices

▪

Capacitors

LDO A: 400mV at 300mA

LDO B: 200mV at 150mA

100kΩ

POKA

POKB

2.2μF

PRODUCT DATASHEET

AAT3242

2.2μF

OUTPUT A

OUTPUT B

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