Multiple output switched capacitor DC-DC converter with capacitor sharing for sensor-fusion platforms

Yu Jie Liang, Po-Hung Chen, Hung Pin Lu, Yuan Hua Chu, Wei Hwang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In this paper, a multiple output switched capacitor (SC) DC-DC converter with capacitor sharing technique is proposed for event-driven energy-efficient sensor-fusion platforms. The converter is able to convert 1.2V supply voltage to five different output voltages ranging from 0.44V to 2.2V to power different building blocks in the system. A part of the flying capacitor can be shared between five SC cells according to the loading condition to reduce the chip area. With capacitor sharing concept, 36% of on-chip metal-insulator-metal (MIM) capacitor can be reduced. The proposed switched capacitor DC-DC converter is implemented by TSMC 90nm CMOS process. The simulation results show the converter achieves 80% maximum conversion efficiency with less than 20mV output ripple.

Original languageEnglish
Title of host publication2016 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467394987
DOIs
StatePublished - 31 May 2016
Event2016 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2016 - Hsinchu, Taiwan
Duration: 25 Apr 201627 Apr 2016

Publication series

Name2016 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2016

Conference

Conference2016 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2016
CountryTaiwan
CityHsinchu
Period25/04/1627/04/16

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