[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5573/JSTS.2016.16.6.842

A 82.5% Power Efficiency at 1.2 mW Buck Converter with Sleep Control

Son, Chung Hwan (Div. of Electronics and Electrical Engineering, Dongguk University)
Byun, Sangjin (Div. of Electronics and Electrical Engineering, Dongguk University)

Publication Information

JSTS:Journal of Semiconductor Technology and Science / v.16, no.6, 2016 , pp. 842-846 More about this Journal

Abstract

This paper presents a DC-DC buck converter which uses a sleep control to improve the power efficiency in a few mW light load condition. The sleep control turns off analog controller building blocks to reduce the static power losses during the off-duty period of pulse width modulation. For verification, a buck converter has been implemented in a $0.18{\mu}m$ CMOS process. The power efficiency has been improved from 76.7% to 82.5% with a 1.2 mW load. The maximum power efficiency is 95% with a 9 mW load.

Keywords

Buck converter; sleep control; current sensor; CMOS integrated circuits;

Citations & Related Records

Reference

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