An Output-Boosted 3-ratio Switched-Capacitor DC-DC Converter with 0.5-to-1.8 v Output Voltage Range for Low-Power IoT Applications

Hyunjin Kim, Changhun Park, Chulwoo Kim

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

Abstract

This paper presents a fully-integrated reconfigurable switched-capacitor (SC) converter that extracts power from a 1. 5-1.SV input voltage and regulates a 0. 3-1.SV output voltage. The converter employs a proposed output-boosting scheme that increases the output voltage of the conventional 3-ratio SC converter power-efficiently. Therefore, the voltage conversion ratios increase from 3 to 14 without the need for additional cascaded SC converter stages. The proposed converter was designed and simulated with a 0. 1S\mum CMOS process and achieved a peak efficiency of 86.7% and a maximum output current of 0.8 mA.

Original languageEnglish
Title of host publicationMWSCAS 2022 - 65th IEEE International Midwest Symposium on Circuits and Systems, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665402798
DOIs
Publication statusPublished - 2022
Event65th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2022 - Fukuoka, Japan
Duration: 2022 Aug 72022 Aug 10

Publication series

NameMidwest Symposium on Circuits and Systems
Volume2022-August
ISSN (Print)1548-3746

Conference

Conference65th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2022
Country/TerritoryJapan
CityFukuoka
Period22/8/722/8/10

Keywords

  • DC-DC converter
  • power management IC
  • series-parallel switched-capacitor converter
  • voltage conversion ratio

ASJC Scopus subject areas

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

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