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AAT1153 - 2A Step-Down Converter

Description

The AAT1153 SwitchReg™ is a 1.2MHz constant frequency 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 conditions.

Features

  • Input Voltage Range: 2.5V to 5.5V Output Voltages from 0.6V to VIN 2A Output Current High Efficiency: Up to 95% 1.2MHz Constant Switching Frequency Low RDS(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 Operat.

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Datasheet Details

Part number AAT1153
Manufacturer Advanced Analogic Technologies
File Size 732.24 KB
Description 2A Step-Down Converter
Datasheet download datasheet AAT1153 Datasheet

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Full PDF Text Transcription

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PRODUCT DATASHEET AAT1 153 2A Step-Down Converter General Description The AAT1153 SwitchReg™ is a 1.2MHz constant frequency 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 conditions. 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. www.DataSheet4U.com 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.
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