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

2 Citations (Scopus)

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

Bibliographical note

Funding Information:
ACKNOWLEDGEMENT The chip fabrication and EDA tool were supported by the IC Design Education Center (IDEC), Korea. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2022R1A2C3012245).

Publisher Copyright:
© 2022 IEEE.

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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