Design of LDO linear regulator with ultra low-output impedance buffer

Jungsu Choi, Jungeui Park, Wooju Jeong, Junsang Lee, Seok Lee, Jayang Yoon, Jaehoon Kim, Joongho Choi

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

15 Scopus citations

Abstract

This paper presents a low-dropout (LDO) linear regulator using ultra-low output resistance buffer for frequency compensation. The proposed buffer achieves ultra low output impedance with dual shunt feedback loops, which makes it possible to improve load and line regulations as well as the transient response for low voltage applications. A reference control scheme for programmable output voltage of the LDO is presented. The designed LDO linear regulator works under the input voltage of 2.5-5.5V and provides up to 300mA load current for an output voltage range of 0.6-3.3V.

Original languageEnglish
Title of host publication2009 International SoC Design Conference, ISOCC 2009
Pages420-423
Number of pages4
DOIs
StatePublished - 2009
Event2009 International SoC Design Conference, ISOCC 2009 - Busan, Korea, Republic of
Duration: 22 Nov 200924 Nov 2009

Publication series

Name2009 International SoC Design Conference, ISOCC 2009

Conference

Conference2009 International SoC Design Conference, ISOCC 2009
Country/TerritoryKorea, Republic of
CityBusan
Period22/11/0924/11/09

Keywords

  • Compensation
  • Component
  • LDO
  • Linear regulator
  • Programmable output voltage
  • Ultra-low Output buffer

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