A high efficiency current-mode DC-DC step-down converter with wide range of output current

Chia Min Chen*, Kai Hsiu Hsu, Chung-Chih Hung

*Corresponding author for this work

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

4 Scopus citations

Abstract

This paper presents a high efficiency current-mode DC-DC step-down converter with wide range of output current. The converter adaptively operates as Pulse-Width Modulation (PWM). An on-chip current sensing technique is employed to reduce external components and no extra I/O pins are needed for the current-mode controller. A soft-start operation is designed to eliminate the excess large current during the startup of the regulator. The circuit has been designed with TSMC 2P4M 0.35 μm CMOS process. The range of the supply voltage is from 2 to 5V, which is suitable for single-cell lithium-ion battery.

Original languageEnglish
Title of host publication2010 IEEE International 53rd Midwest Symposium on Circuits and Systems, MWSCAS 2010
Pages1009-1012
Number of pages4
DOIs
StatePublished - 20 Sep 2010
Event53rd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2010 - Seattle, WA, United States
Duration: 1 Aug 20104 Aug 2010

Publication series

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

Conference

Conference53rd IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2010
CountryUnited States
CitySeattle, WA
Period1/08/104/08/10

Keywords

  • Current-mode controller
  • Current-sensing circuit
  • DC-DC converter
  • Pulse-width modulation(PWM)
  • Switch-mode power converter

Fingerprint Dive into the research topics of 'A high efficiency current-mode DC-DC step-down converter with wide range of output current'. Together they form a unique fingerprint.

Cite this