Chapter 44

Triple buck regulator features 1-wire dynamically programmable output voltages

Andy Bishop

Abstract

The LTC3569, a flexible solution for powering handheld Li-Ion battery applications, is described.

Keywords

Triple buck regulator

LTC3569

Introduction

The LTC3569 is a compact power solution for handheld devices. Its tiny 3mm × 3mm QFN package includes three buck regulators with individually programmable output voltages. One regulator supports load currents up to 1200mA, while the other two support currents to 600mA. Two regulators can be paralleled for increased load capability. Each current mode regulator is internally compensated with excellent load and line regulation. A complete 2- or 3-output solution requires a minimum ...

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