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AAT1143 - 1MHz 400mA Step-Down Converter

General Description

The AAT1143 SwitchReg™ is a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product family.

It is a 1MHz step-down converter with an input voltage range of 2.7V to 5.5V and output as low as 0.6V.

Key Features

  • SwitchReg™ VIN Range: 2.7V to 5.5V VOUT Adjustable 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 Temperature Range: -40.

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Datasheet Details

Part number AAT1143
Manufacturer Advanced Analogic Technologies
File Size 594.04 KB
Description 1MHz 400mA Step-Down Converter
Datasheet download datasheet AAT1143 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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AAT1143 1MHz 400mA Step-Down Converter General Description The AAT1143 SwitchReg™ is a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product family. It is a 1MHz step-down converter 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. The AAT1143 is available in either a fixed version with internal feedback or a programmable version with external feedback resistors. It can deliver 400mA of load current while maintaining a low 25µA no load quiescent current. The 1MHz switching frequency minimizes the size of external components while keeping switching losses low.