Application Note 84
April 2000 Linear Technology Magazine Circuit Collection, Volume IV
Power Products
Richard Markell, Editor
INTRODUCTION
Application Note 84 is the fourth in a series that excerpts
useful circuits from Linear Technology magazine to preserve them for posterity. This application note highlights
“power” circuits from issue VI:1 (February 1996) through
issue VIII:4 (November 1998). Another application note
will feature data conversion, interface and signal processing circuits from the same era. Like its predecessor, AN 66,
this Application Note includes circuits that can power
most any system you can imagine, from “server” power
supplies that generate in excess of 50 amps to micropower systems for portable and handheld equipment.
Also included are power converters that can be voltage programmed using Intel’s VID code. Charge pump converters, linear regulators and battery charger circuits are
included here, with Li-Ion batteries receiving extra attention. There are, of course, circuits that cannot be so simply
categorized. Come browse. I’ll get out of the way and let
the authors describe their creations.
Note: Article Titles appear in this application note exactly
as they originally appeared in Linear Technology magazine. This may result in some inconsistency in the usage
of terminology. TABLE OF CONTENTS
Introduction . 1
REGULATORS—SWITCHING (BUCK)
New LTCВ®1435–LTC1439 DC/DC Controllers Feature Value and Performance . 4 …