A 26nA Ultra-Low Input Current, 81nW Ultra-Low Power and 1μs Recovery Time Ultra-Fast Transient DC-DC Buck Converter for Internet-of-Things

Sheng Cheng Lee*, Yu Teng Liang, Hsing Yen Tsai, Jia Rui Huang, Peng Chu Chen, Chao Heng Liu, Yu Tse Shih, Ke Horng Chen, Kuo Lin Zheng, Ying Hsi Lin, Shian Ru Lin, Tsung Yen Tsai

*Corresponding author for this work

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

Abstract

This paper proposes an ultra-low quiescent current buck converter that includes an ultra-low quiescent current modulator to reduce IQ to 26nA, and a gate-drive dynamic voltage scaling technique to improve efficiency by 15-20%. In addition, the proposed zero-IQ supply voltage monitor can ensure low IQ at the input voltage detection. Experimental results prove the peak efficiency is as high as 97.3% with a small chip area of 0.7 ☆ 1.4 m m2.

Original languageEnglish
Title of host publicationESSCIRC 2023 - IEEE 49th European Solid State Circuits Conference
PublisherIEEE Computer Society
Pages317-320
Number of pages4
ISBN (Electronic)9798350304206
DOIs
StatePublished - 2023
Event49th IEEE European Solid State Circuits Conference, ESSCIRC 2023 - Lisbon, Portugal
Duration: 11 Sep 202314 Sep 2023

Publication series

NameEuropean Solid-State Circuits Conference
Volume2023-September
ISSN (Print)1930-8833

Conference

Conference49th IEEE European Solid State Circuits Conference, ESSCIRC 2023
Country/TerritoryPortugal
CityLisbon
Period11/09/2314/09/23

Keywords

  • gate-drive dynamic voltage scaling technique
  • ultra-low quiescent current
  • zero-IQ supply voltage monitor

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