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AAT1149 Datasheet Step-Down Converter

Manufacturer: AAT

Datasheet Details

Part number AAT1149
Manufacturer AAT
File Size 1.80 MB
Description Step-Down Converter
Download AAT1149 Download (PDF)

General Description

The AAT1149 SwitchReg is a 3.0MHz step-down converter with an input voltage range of 2.7V to 5.5V and output voltage as low as 1.0V.

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

The AAT1149 output voltage is programmable via external feedback resistors.

Overview

3MHz Fast Transient 400mA Step-Down Converter General.

Key Features

  • SwitchReg™ Ultra-Small 0603 Inductor (Height = 1mm) VIN Range: 2.7V to 5.5V VOUT Adjustable from 1.0V to VIN 400mA Max Output Current Up to 98% Efficiency 45μA No Load Quiescent Current 3.0MHz Switching Frequency 70μs Soft Start Fast Load Transient Over-Temperature Protection Current Limit Protection 100% Duty Cycle Low-Dropout Operation.