Datasheet > CDRH5D16

CDRH5D16

更新时间： 2024-01-15 05:06:05

品牌	Logo	应用领域
思佳讯 - SKYWORKS		转换器
页数	文件大小	规格书
19页	1465K
描述
2A Step-Down Converter

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CDRH5D16 数据手册

DATA SHEET

AAT1153

2A Step-Down Converter

General Description

Features

•

The AAT1153 SwitchReg™ is a 1.2MHz constant fre-

quency current mode PWM step-down converter. It is

ideal for portable equipment requiring very high current

up to 2A from single-cell Lithium-ion batteries while still

achieving over 90% efficiency during peak load condi-

tions. The AAT1153 also can run at 100% duty cycle for

low dropout operation, extending battery life in portable

systems while light load operation provides very low

output ripple for noise sensitive applications.

Input Voltage Range: 2.5V to 5.5V

• Output Voltages from 0.6V to V_IN

• 2A Output Current

• High Efficiency: Up to 95%

• 1.2MHz Constant Switching Frequency

• Low R_DS(ON)Internal Switches: 0.15Ω

• Allows Use of Ceramic Capacitors

• Current Mode Operation for Excellent Line and Load

Transient Response

• Short-Circuit and Thermal Fault Protection

• Soft Start

• Low Dropout Operation: 100% Duty Cycle

• Low Shutdown Current: I_SHUTDOWN< 1μA

• TDFN33-10 Package

The AAT1153 can supply up to 2A output load current

from a 2.5V to 5.5V input voltage and the output voltage

can be regulated as low as 0.6V. The high switching fre-

quency minimizes the size of external components while

keeping switching losses low. The internal slope compen-

sation setting allows the device to operate with smaller

inductor values to optimize size and provide efficient

operation.

• -40°C to +85°C Temperature Range

Applications

The AAT1153 is available with adjustable (0.6V to V_IN)

output voltage. The device is available in a Pb-free, 3mm

x 3mm 10-lead TDFN package and is rated over the

-40°C to +85°C temperature range.

• Cellular Phones

• Digital Cameras

• DSP Core Supplies

• PDAs

• Portable Instruments

• Smart Phones

Typical Application

2.2μH

V_OUT

1.8V, 2A

V_IN2.5V-5.5V

634kΩ

22μF

AAT1153

AIN

316kΩ

AGND

PGND

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

201992B

• Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 18, 2013

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