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AAT1143IJS-2.5-T1

更新时间： 2024-02-29 20:11:34

品牌	Logo	应用领域
思佳讯 - SKYWORKS		转换器稳压器开关式稳压器或控制器电源电路开关式控制器
页数	文件大小	规格书
19页	1138K
描述
1MHz 400mA Step-Down Converter

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技术参数
数据手册

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AAT1143IJS-2.5-T1 技术参数

生命周期：	Active	包装说明：	TSOJ, TSSOJ8,.09,20
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.65
Is Samacsys：	N	模拟集成电路 - 其他类型：	SWITCHING REGULATOR
控制模式：	CURRENT-MODE	JESD-30 代码：	R-PDSO-J8
端子数量：	8	最高工作温度：	85 °C
最低工作温度：	-40 °C	最大输出电流：	0.4 A
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSOJ
封装等效代码：	TSSOJ8,.09,20	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE	认证状态：	Not Qualified
子类别：	Switching Regulator or Controllers	表面贴装：	YES
最大切换频率：	1500 kHz	温度等级：	INDUSTRIAL
端子形式：	J BEND	端子节距：	0.5 mm
端子位置：	DUAL	Base Number Matches：	1

AAT1143IJS-2.5-T1 数据手册

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DATA SHEET

AAT1143

1MHz 400mA Step-Down Converter

General Description

Features

•

The AAT1143 SwitchReg™ is a 1MHz step-down con-

verter with an input voltage range of 2.7V to 5.5V and

output as low as 0.6V. Its low supply current, small size,

and high switching frequency make the AAT1143 the

ideal choice for portable applications.

V_INRange: 2.7V to 5.5V

V_OUTAdjustable Down to 0.6V

Fixed or Adjustable Version

25μA No Load Quiescent Current

Up to 95% Efficiency

▪

•

400mA Max Output Current

1MHz Switching Frequency

Soft Start

Over-Temperature Protection

Current Limit Protection

100% Duty Cycle Low-Dropout Operation

0.1μA Shutdown Current

SC70JW-8 Package

The AAT1143 is available in either a fixed version with

internal feedback or a programmable version with exter-

nal feedback resistors. It can deliver 400mA of load cur-

rent while maintaining a low 25μA no load quiescent

current. The 1MHz switching frequency minimizes the

size of external components while keeping switching

losses low. The AAT1143 feedback and control delivers

excellent load regulation and transient response with a

small output inductor and capacitor.

Temperature Range: -40°C to +85°C

The AAT1143 is designed to maintain high efficiency

throughout the operating range, which is critical for por-

table applications.

Applications

•

Cellular Phones

Digital Cameras

Handheld Instruments

Microprocessor / DSP Core / IO Power

PDAs and Handheld Computers

USB Devices

The AAT1143 is available in a space-saving 2.0 x 2.2mm

SC70JW-8 package and is rated over the -40°C to +85°C

temperature range.

Typical Application (Fixed Output Voltage)

Efficiency vs. Load Current

(V_OUT= 2.5V; V_IN= 3.3V)

V_O

V_IN

AAT1143

100

VIN

4.7μH

OUT

PGND

4.7μF

AGND

PGND

0.1

100

1000

Output Current (mA)

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

201983B

• Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 25, 2013

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