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

Manufacturer: AAT

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Datasheet Details

Part number AAT1149A
Manufacturer AAT
File Size 909.16 KB
Description 2.2MHz Fast Transient 400mA Step-Down Converter
Download AAT1149A Download (PDF)

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

SwitchRegTM PRODUCT DATASHEET 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.
  • Over-Temperature Protection.
  • Current Limit Protection.
  • 100% Duty Cycle Low-Dropout Operation.

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