Chapter 76

Tiny buck regulator accepts inputs from 3.6V to 25V and eliminates heat sink

Jeff Witt

Abstract

The LT1616, a complete fixed-frequency step-down switching regulator in a ThinSOT (1mm thick SOT-23) package, is described.

Keywords

Buck regulator

ThinSOT

LT1616

Introduction

The LT1616 is a complete fixed-frequency step-down switching regulator in a ThinSOT (1mm thick SOT-23) package. It meets the needs of circuit designers who require a large input voltage range or the smallest solution possible. The LT1616 accepts an input from 3.6V to 25V, produces a low voltage output at 400mA and occupies less than 0.15 in2 of board space. With this wide input range, the LT1616 can regulate a large variety of power sources, from 4-cell ...

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