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AAT1149A Datasheet 2.2MHz Fast Transient 400mA Step-Down Converter

Manufacturer: Skyworks Solutions

General Description

The AAT1149A 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 AAT1149A can deliver 400mA of load current and operates in PWM only mode for low noise operation.

Overview

DATA SHEET AAT1149A 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 1.875V.
  • 400mA Max Output Current.
  • Up to 98% Efficiency.
  • 3mA No Load Quiescent Current.
  • 2.2MHz Switching Frequency.
  • 70μs Soft Start.
  • Fast Load Transient.