An 83% efficiency, 0.6V to 1V output switched-capacitor DC-DC converter for micro-watt power applications

Dima Kilani, Mohammad Alhawari, Baker Mohammad, Hani Saleh, Mohammed Ismail

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

2 Scopus citations

Abstract

This paper presents an efficient on-chip switchedcapacitor DC-DC buck converter targeting W power range applications. The proposed switched-capacitor converter has an input of 1.2V and generates multiple output voltage levels, namely 1V, 0.8V and 0.6V based on two digital bits. In addition, the switched-capacitor converter has the capability to drive a wide range of load currents from 10A to 800A that is set by the operating frequency. The proposed converter is designed and fabricated in 65nm low power CMOS technology and occupies an area of 0.43mm2. The design utilizes both MIM and MOS capacitances stacked above each other so that the system area and efficiency are optimized. The measured maximum power efficiency from silicon is 83% for a load current of 400 μ A at 0.8V.

Original languageBritish English
Title of host publication2016 IEEE 59th International Midwest Symposium on Circuits and Systems, MWSCAS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509009169
DOIs
StatePublished - 2 Jul 2016
Event59th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2016 - Abu Dhabi, United Arab Emirates
Duration: 16 Oct 201619 Oct 2016

Publication series

NameMidwest Symposium on Circuits and Systems
Volume0
ISSN (Print)1548-3746

Conference

Conference59th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2016
Country/TerritoryUnited Arab Emirates
CityAbu Dhabi
Period16/10/1619/10/16

Keywords

  • Power efficiency
  • Switched-capacitor DC-DC converter

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