A monolithic capacitor-current-controlled hysteretic buck converter with transient-optimized feedback circuit

Shih Hsiung Chien, Ting Hsuan Hung, Szu Yu Huang, Tai Haur Kuo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper proposes a monolithic capacitor-current-controlled hysteretic buck converter with a transient-optimized feedback circuit (TOFC) and a transient-hold (TH) technique. The proposed TOFC simultaneously optimizes both load and dynamic voltage scaling (DVS) transient responses. In addition, the proposed TH technique significantly reduces the required compensation capacitance to save chip area. Implemented in a 0.35-μm CMOS process, this work occupies 0.88 mm2. Measured results show that, for 500-mA step-up load current, output voltage is settled within 0.9 μs, and for 0.6-V DVS, output voltage is settled within 3 μs. Peak efficiency of 96% is measured at 500 mW output power.

Original languageEnglish
Title of host publication2014 IEEE Asian Solid-State Circuits Conference, A-SSCC - Proceedings of Technical Papers
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages57-60
Number of pages4
ISBN (Electronic)9781479940905
DOIs
Publication statusPublished - 2015 Jan 13
Event2014 10th IEEE Asian Solid-State Circuits Conference, A-SSCC 2014 - Kaohsiung, Taiwan
Duration: 2014 Nov 102014 Nov 12

Publication series

Name2014 IEEE Asian Solid-State Circuits Conference, A-SSCC - Proceedings of Technical Papers

Conference

Conference2014 10th IEEE Asian Solid-State Circuits Conference, A-SSCC 2014
CountryTaiwan
CityKaohsiung
Period14-11-1014-11-12

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Hardware and Architecture

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