Analog Circuit Design Volume Three

Chapter 275

Accurate power supply sequencing prevents system damage

Jeff Heath and Akin Kestelli

Abstract

The LTC2924, a simple and compact solution to power supply sequencing in a 16-pin SSOP package, is described.

Keywords

Power supply sequencing

LTC2924

Introduction

Many complex systems—such as telecom equipment, memory modules, optical systems, networking equipment, servers and base stations—use FPGAs and other digital ICs that require multiple voltage rails that must start up and shut down in a specific order, otherwise the ICs can be damaged. The LTC2924 is a simple and compact solution to power supply sequencing in a 16-pin SSOP package (see Figures 275.1 and 275.2).

Figure 275.1 Typical Application with External N-Channel ...