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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 156

Industry’s first 4-switch buck-boost controller achieves highest efficiency using a single inductor

Wilson Zhou and Theo Phillips

Abstract

The LTC3780, a constant frequency current mode buck-boost switching regulator controller, is described.

Keywords

Switching regulator controller

Buck-boost

LTC3780

Introduction

One of the most common DC/DC converter problems is generating a regulated voltage that falls somewhere in the middle of a wide range of input voltages. When the input voltage can be above, below or equal to the output voltage, the converter must perform step-down and step-up functions. Unlike solutions requiring bulky transformers, the LTC3780 meets these requirements in the most compact and efficient manner, ...

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