Low quiescent current variable output digital controlled voltage regulator

Author

Hsieh, Wei-Chih ; Hwang, Wei

Author_Institution

Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

fYear

2010

fDate

May 30 2010-June 2 2010

Firstpage

609

Lastpage

612

Abstract

In this paper, a digital controlled push-pull linear voltage regulator is proposed. The designed regulator can provide a variable output voltage ranging from 0.5V to 1V in steps of 0.1V. It can supply a maximum of 100mA for each output level. A time interleaving control technique is also presented to enhance the output performance. By using UMC 65nm standard CMOS technology, the ripple of the output voltage when the load or output level changes is smaller than 10% of each specific output level. The current efficiency is 99.9% with only 126μA quiescent current.

Keywords

CMOS integrated circuits; integrated circuit design; voltage regulators; current 100 mA; current 126 muA; digital controlled push-pull linear voltage regulator; low quiescent current variable output digital controlled voltage regulator; size 65 nm; standard CMOS technology; time interleaving control technique; voltage 0.5 V to 1 V; Analog circuits; Control systems; Digital circuits; Digital control; Dynamic voltage scaling; Electric variables control; Interleaved codes; Regulators; Switching converters; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on

Conference_Location

Paris

Print_ISBN

978-1-4244-5308-5

Electronic_ISBN

978-1-4244-5309-2

Type

conf

DOI

10.1109/ISCAS.2010.5537518

Filename

5537518