June 2010

Doc ID 15690 Rev 1

1/8

AN2984

Application note

Minimizing the SET-related effects

on the output of a voltage linear regulator

Introduction

This application note deals with the effects of SET (single event transient) on the

RHFL4913A low-drop linear regulator. After a short description of the phenomenon, some

solutions for coping with these effects are introduced and discussed.

The RHFL4913A voltage regulator

The RHFL4913A is an adjustable high-performance positive voltage regulator with

exceptional radiation performance. It is tested in accordance with the Mil Std 883E method

1019.6, in ELDRS conditions. The device is available in the Flat-16 and the new SMD5C

hermetic ceramic package, as shown in Figure 1, and the QML-V die is specifically

designed for space and harsh radiation environments. In Figure 2 the internal block diagram

is shown.

Figure 1.

RHFL4913A packages

SMD5C

FLAT-16

5-connection SMD

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