Datasheet > AAT2554IRN-CAW-T1

AAT2554IRN-CAW-T1

更新时间： 2024-02-08 18:43:10

品牌	Logo	应用领域
思佳讯 - SKYWORKS		便携式
页数	文件大小	规格书
31页	2917K
描述
Total Power Solution for Portable Applications

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AAT2554IRN-CAW-T1 技术参数

生命周期：	Transferred	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.7
Base Number Matches：	1

AAT2554IRN-CAW-T1 数据手册

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DATA SHEET

AAT2554

Total Power Solution for Portable Applications

Features

General Description

•

The AAT2554 is a fully integrated 500mA battery char-

ger, a 250mA step-down converter, and a 300mA low

dropout (LDO) linear regulator. The input voltage range

is 4V to 6.5V for the battery charger and 2.7V to 5.5V

for the step-down converter and linear regulator, making

it ideal for applications operating with single-cell lithium-

ion/polymer batteries.

Battery Charger:

Input Voltage Range: 4V to 6.5V

Programmable Charging Current up to 500mA

Highly Integrated Battery Charger

▪

•

Charging Device

•

Reverse Blocking Diode

•

Step-Down Converter:

Input Voltage Range: 2.7V to 5.5V

Output Voltage Range: 0.6V to V_IN

250mA Output Current

Up to 96% Efficiency

30μA Quiescent Current

1.5MHz Switching Frequency

100μs Start-Up Time

▪

The battery charger is a complete constant current/con-

stant voltage linear charger. It offers an integrated pass

device, reverse blocking protection, high accuracy cur-

rent and voltage regulation, charge status, and charge

termination. The charging current is programmable via

external resistor from 15mA to 500mA. In addition to

these standard features, the device offers over-voltage,

current limit, and thermal protection.

▪

•

Linear Regulator:

300mA Output Current

Low Dropout: 400mV at 300mA

Fast Line and Load Transient Response

High Accuracy: ±1.5%

▪

The step-down converter is a highly integrated converter

operating at a 1.5MHz switching frequency, minimizing

the size of external components while keeping switching

losses low. It has independent input and enable pins. The

output voltage ranges from 0.6V to the input voltage.

▪

70μA Quiescent Current

▪

Short-Circuit, Over-Temperature, and Current Limit

Protection

TDFN34-16 Package

The AAT2554 linear regulator is designed for fast tran-

sient response and good power supply ripple rejection.

Designed for 300mA of load current, it includes short-

circuit protection and thermal shutdown.

•

-40°C to +85°C Temperature Range

Applications

• Bluetooth™ Headsets

The AAT2554 is available in a Pb-free, thermally-

enhanced TDFN34-16 package and is rated over the

-40°C to +85°C temperature range.

• Cellular Phones

• Handheld Instruments

• MP3 and Portable Music Players

• PDAs and Handheld Computers

• Portable Media Players

Typical Application

Adapter/USB Input

VINB

ADP

ENB

VINA

STAT

EN_BAT

Enable

ENA

V_OUTB

L= 3.0μH

AAT2554

BATT+

BAT

R_FB1

R_FB2

C_OUTB

C_OUT

V_OUTA

OUTA

ISET

BATT-

R_SET

C_OUTA

GND

Battery

Pack

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

202176B

• Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 19, 2013

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