An Ultra-low Quiescent Current 250nA Low Dropout Regulator for No-Load to 10MA Internet-of-Evervthing Applications

Shao Qi Chen, Chia Ming Huang, Ke Homg Chen, Ying Hsi Lin, Shian Ru Lin, Tsung Yen Tsai

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

1 Scopus citations

Abstract

The proposed analog low-dropout regulator (ALDO) achieves 250nA of ultra-low quiescent current and 130ns of fast transient response simultaneously. The proposed use of an ultralow quiescent current (ULQC) error amplifier to regulate the gate of power MOSFET while the auxiliary digital gate voltage control (DGVC) circuit contributes to the load transient response. Moreover, the switching frequency is dynamically reduced by the frequency modulation after entering the steady state. The line and load regulation rates are 0.14 m V /V and 0.2 1mV/mA, respectively. High current efficiency of 99.91 % and the best merit-of-figure in steady state are achieved.

Original languageEnglish
Title of host publication2018 IEEE Symposium on VLSI Circuits, VLSI Circuits 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages229-230
Number of pages2
ISBN (Electronic)9781538667002
DOIs
StatePublished - 22 Oct 2018
Event32nd IEEE Symposium on VLSI Circuits, VLSI Circuits 2018 - Honolulu, United States
Duration: 18 Jun 201822 Jun 2018

Publication series

NameIEEE Symposium on VLSI Circuits, Digest of Technical Papers
Volume2018-June

Conference

Conference32nd IEEE Symposium on VLSI Circuits, VLSI Circuits 2018
CountryUnited States
CityHonolulu
Period18/06/1822/06/18

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