Dual switch-mode regulator IC

Author

Marshall, A. ; Devore, J.

Author_Institution

Texas Instrum. Inc., Dallas, TX, USA

fYear

1995

fDate

15-17 Feb. 1995

Firstpage

52

Lastpage

53

Abstract

This IC eliminates two linear regulators and replaces them with precision switch mode regulators (SMPS). The chip also combines circuitry for two stepper motors, and a DC motor driver. Precision voltage regulation is achieved using an EEPROM programmable trim, allowing in-package voltage adjustment to 1% and oscillator trim of 1.5%. The chip uses a 1 /spl mu/m power IC process that incorporates both 60 and 40 V DMOS structures, 10 V CMOS, and 5 V CMOS and n-p-n bipolar devices. This device incorporates a two-process-step EEPROM option for programming capability. The IC is available with two variants of SMPS, a conventional buck regulator and a burst or ripple type hybrid regulator.

Keywords

BiCMOS integrated circuits; EPROM; driver circuits; power integrated circuits; switched mode power supplies; voltage control; voltage regulators; 1 micron; 5 to 60 V; 500 mA; CMOS devices; DC motor driver; DMOS structures; EEPROM programmable trim; SMPS; buck regulator; burst type hybrid regulator; dual switch-mode regulator IC; n-p-n bipolar devices; power IC process; ripple type hybrid regulator; voltage regulation; CMOS process; DC motors; Driver circuits; EPROM; Power integrated circuits; Regulators; Switched-mode power supply; Switches; Voltage control; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 1995. Digest of Technical Papers. 41st ISSCC, 1995 IEEE International

Conference_Location

San Francisco, CA, USA

ISSN

0193-6530

Print_ISBN

0-7803-2495-1

Type

conf

DOI

10.1109/ISSCC.1995.535272

Filename

535272