Chapter 60

ThinSOT micropower buck regulator has low output ripple

Keith Szolusha

Abstract

The LT3470, a wide input voltage range, hysteretic mode, fully integrated monolithic 300mA step-down DC/DC converter, is described.

Keywords

Monolithic step-down DC/DC converter

LT3470

Introduction

High voltage monolithic step-down converters simplify circuit design and save space by integrating the high side power switch into the device. In most cases, the switch is an n-type transistor (NMOS or NPN) with a boot-strapped drive stage, requiring an external boost diode and capacitor as well as the main catch diode, complicating the applications circuit.

The LT3470 is a 40V step-down converter with the power switch, catch diode and boost diode ...

Get Analog Circuit Design Volume Three now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.