AAT2556IWP-CA-T1 Advanced Analogic Technologies, Inc., AAT2556IWP-CA-T1 Datasheet

AAT2556IWP-CA-T1

Manufacturer Part Number

AAT2556IWP-CA-T1

Description

Manufacturer

Advanced Analogic Technologies, Inc.

Datasheets

1.AAT2556IWP-CA-T1.pdf (29 pages)

2.AAT2556IWP-CA-T1.pdf (27 pages)

3.AAT2554IRN-CAQ-T1.pdf (29 pages)

Specifications of AAT2556IWP-CA-T1

Date_code

06+

Packing_info

TDFN33-12

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

AAT2556IWP-CA-T1

Manufacturer:

SKYWORKS/思佳讯

Quantity:

20 000

Current page: 1 of 29
Download datasheet (3Mb)

General Description

The AAT2556 is a member of AnalogicTech's Total

Power Management IC™ (TPMIC™) product fam-

ily. It is a fully integrated 500mA battery charger

plus a 250mA step-down converter. The input volt-

age range is 4V to 6.5V for the battery charger and

2.7V to 5.5V for the step-down converter, making it

ideal for single-cell lithium-ion/polymer battery-

powered applications.

The battery charger is a complete constant current/

constant voltage linear charger. It offers an inte-

grated pass device, reverse blocking protection,

high current accuracy and voltage regulation,

charge status, and charge termination. The charg-

ing current is programmable via external resistor

from 15mA to 500mA. In addition to standard fea-

tures, the device offers over-voltage, current limit,

and thermal protection.

The step-down converter is a highly integrated

converter operating at 1.5MHz of switching fre-

quency, minimizing the size of external compo-

nents while keeping switching losses low. It has

independent input and enable pins. The output

voltage ranges from 0.6V to the input voltage. The

feedback and control deliver excellent load regula-

tion and transient response with a small output

inductor and capacitor.

The AAT2556 is available in a Pb-free, thermally-

enhanced TDFN33-12 package and is rated over

the -40°C to +85°C temperature range.

Typical Application

2556.2006.09.1.2

Enable

Adapter / USB Input

OUT

FB1

FB2

L= 3.3µH

STAT

ADP

EN_BAT

GND

EN_BUCK

ISET

BAT

VIN

Converter for Portable Applications

Features

•

Applications

•

SET

Battery Charger and Step-Down

Battery Charger:

— Input Voltage Range: 4V to 6.5V

— Programmable Charging Current up to

— Highly Integrated Battery Charger

Step-Down Converter:

— Input Voltage Range: 2.7V to 5.5V

— Output Voltage Range: 0.6V to V

— 250mA Output Current

— Up to 96% Efficiency

— 30µA Quiescent Current

— 1.5MHz Switching Frequency

— 100µs Start-Up Time

Short-Circuit, Over-Temperature, and Current

Limit Protection

TDFN33-12 Package

-40°C to +85°C Temperature Range

Bluetooth™ Headsets

Cellular Phones

Handheld Instruments

MP3 and Portable Music Players

PDAs and Handheld Computers

Portable Media Players

500mA

— Charging Device

— Reverse Blocking Diode

BATT +

BATT -

SystemPower

™

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