O'Reilly logo

Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 152

High efficiency 4-switch buck-boost controller provides accurate output current limit

Tage Bjorklund

Abstract

A high efficiency 4-switch buck-boost controller that provides accurate output current limit is described.

Keywords

Buck-boost controller

LTC3789

Introduction

A 4-switch buck-boost converter (Figure 152.1) is often a better alternative to a transformer-based topology when a converter’s input voltage can be above or below the regulated output voltage and isolation is not required. A buck-boost converter provides a wider input voltage range, better efficiency and has no need of a bulky transformer. A buck-boost converter is much more efficient than a comparable SEPIC converter.

Figure 152.1 4-Switch Buck-Boost ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required