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AAT1149A Datasheet 2.2mhz Fast Transient 400ma Step-down Converter

Manufacturer: Skyworks Solutions

Overview: DATA SHEET AAT1149A 2.2MHz Fast Transient 400mA Step-Down Converter.

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.

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.

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