Chapter 283

60V buck-boost controller drives high power LEDs, charges batteries and regulates voltage with up to 98.5% efficiency at 100W and higher

Keith Szolusha

Abstract

A 60V buck-boost controller that can drive high power LEDs, charge batteries and regulate voltage with up to 98.5% efficiency at 100W and higher, is described.

Keywords

LED lights

synchronous buck-boost controller

LT3791

Introduction

The LT3791 is a 4-switch synchronous buck-boost DC/DC converter that regulates both constant-current and constant-voltage at up to 98.5% efficiency with a single inductor. It can deliver hundreds of watts and features a 60V input and output rating, making it ideal for driving high power LED strings and charging high voltage batteries ...

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