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AAT1149B - 2.2MHz Fast Transient 400mA Step-Down Converter

Datasheet Details

Part number AAT1149B
Manufacturer AAT
File Size 914.11 KB
Description 2.2MHz Fast Transient 400mA Step-Down Converter
Datasheet download datasheet AAT1149B Datasheet

General Description

The AAT1149B SwitchReg is a 2.2MHz step-down converter with an input voltage range of 2.2V to 5.5V.

It is optimized to react quickly to load variations and operate with a tiny 0603 inductor that is only 1mm tall.

The AAT1149B can deliver 400mA of load current while maintaining a low 45μA no load quiescent current.

Overview

SwitchRegTM PRODUCT DATASHEET AAT1149B 2.2MHz Fast Transient 400mA Step-Down Converter.

Key Features

  • Ultra-Small 0603 Inductor (Height = 1mm).
  • VIN Range: 2.2V to 5.5V.
  • VOUT Fixed 1.8V.
  • 400mA Max Output Current.
  • Up to 98% Efficiency.
  • 45μA No Load Quiescent Current.