A fully-integrated 40-phase flying-capacitance-dithered switched-capacitor voltage regulator with 6mV output ripple

Suyoung Bang, Jae-sun Seo, Inhee Lee, Seokhyeon Jeong, Nathaniel Pinckney, David Blaauw, Dennis Sylvester, Leland Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

A switched-capacitor voltage regulator (SCVR) that dithers flying capacitance (CFLY) to reduce output ripple is presented. The proposed technique is implemented in a 40-phase SCVR with 4b CFLY modulation in 65nm CMOS. At 2.3V input, on-chip ripple magnitude of 6∼16mV at 1V output is measured for 11∼142mA load. Peak efficiency is 70.8% at a power density of 0.187W/mm2.

Original languageEnglish (US)
Title of host publication2015 Symposium on VLSI Circuits, VLSI Circuits 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
PagesC336-C337
ISBN (Electronic)9784863485020
DOIs
StatePublished - Aug 31 2015
Event29th Annual Symposium on VLSI Circuits, VLSI Circuits 2015 - Kyoto, Japan
Duration: Jun 17 2015Jun 19 2015

Publication series

NameIEEE Symposium on VLSI Circuits, Digest of Technical Papers
Volume2015-August

Other

Other29th Annual Symposium on VLSI Circuits, VLSI Circuits 2015
CountryJapan
CityKyoto
Period6/17/156/19/15

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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    Bang, S., Seo, J., Lee, I., Jeong, S., Pinckney, N., Blaauw, D., Sylvester, D., & Chang, L. (2015). A fully-integrated 40-phase flying-capacitance-dithered switched-capacitor voltage regulator with 6mV output ripple. In 2015 Symposium on VLSI Circuits, VLSI Circuits 2015 (pp. C336-C337). [7231313] (IEEE Symposium on VLSI Circuits, Digest of Technical Papers; Vol. 2015-August). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VLSIC.2015.7231313