AAT2500IWP-IW-T1 Advanced Analogic Technologies, Inc., AAT2500IWP-IW-T1 Datasheet

AAT2500IWP-IW-T1

Manufacturer Part Number

AAT2500IWP-IW-T1

Description

Manufacturer

Advanced Analogic Technologies, Inc.

Datasheets

1.AAT2500IWP-AI-T1.pdf (26 pages)

2.AAT2500IWP-AI-T1.pdf (26 pages)

3.AAT2500IWP-IW-T1.pdf (22 pages)

Specifications of AAT2500IWP-IW-T1

Date_code

06+

Packing_info

TDFN33-12

Current page: 1 of 22
Download datasheet (516Kb)

General Description

The AAT2500M is a high efficiency 400mA step-

down converter and 300mA low dropout (LDO) lin-

ear regulator for applications where power efficien-

cy and solution size are critical. The typical input

power source can be a single-cell Lithium-ion/poly-

mer battery or a 5V or 3.3V power bus.

The step-down converter is capable of delivering up

to 400mA output current, uses a typical switching

frequency of 1.8MHz to greatly reduce the size of

external components, offers high speed turn-on and

maintains a low 25µA no load quiescent current.

The LDO is capable of delivering up to 300mA out-

put current.

The AAT2500M is available in the Pb-free, space-

saving 12-pin TSOPJW package and is rated over

the -40°C to +85°C operating temperature range.

Typical Application

2500M.2007.06.1.0

Input Supply

Enable Buck

Enable LDO

1µF

2.7V to 5.5V

4.7µF

IN_BUCK

IN_LDO

EN_BUCK

EN_LDO

400mA Step-Down Converter and 300mA LDO

AAT2500M

AGND

OUT_LDO

FB_BUCK

PGND

Features

•

Applications

•

Output Current:

— Step-Down Converter: 400mA

— LDO: 300mA

Low Quiescent Current

— 130µA Combined for Both Step-Down

90% Efficient Step-down Converter (at 100mA)

Integrated Power Switches

100% Duty Cycle

1.8MHz Switching Frequency

Current Limit Protection

Automatic Soft-Start

Over Temperature Protection

TSOPJW-12 Package

-40°C to +85°C Temperature Range

Cellular Phones

Digital Cameras

Handheld Instruments

Micro Hard Disc Drives

Microprocessor / DSP Core / IO Power

Optical Storage Devices

PDAs and Handheld Computers

Portable Media Players

2.2µH

Range: 2.7V to 5.5V

Converter plus LDO

2.2µF

OUT(LDO)

SystemPower

AAT2500M

4.7µF

OUT_BUCK

™

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