Minimized transient and steady-state cross regulation in 55nm CMOS single-inductor dual-output (SIDO) step-down DC-DC converter

Yu Huei Lee*, Tzu Chi Huang, Yao Yi Yang, Ke-Horng Chen, Ying Hsi Lin, Wen Shen Chou, Chen Chih Huang, Yi Kuang Chen

*Corresponding author for this work

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

2 Scopus citations

Abstract

A single-inductor dual-output (SIDO) step-down converter with continuous conduction mode (CCM) control is proposed for high efficiency system-on-a-chip (Soc) integration. The cross regulation in steady-state output voltage ripple, which is rarely mentioned, is effectively reduced as well as in transient response. The low-voltage energy distribution controller (LV-EDC) circuit guarantees good voltage regulation and low output voltage ripple simultaneously. In addition, within the allowable output voltage ripple, the automatic energy bypass (AEB) mechanism can reduce the number of energy delivery path to decrease the switching loss. Two outputs are operated with the load-dependent energy path for improving the power conversion efficiency. The chip fabricated in 55 nm CMOS achieves 91 % peak efficiency, low output voltage ripple, and excellent load transient response.

Original languageEnglish
Title of host publication2010 IEEE Asian Solid-State Circuits Conference, A-SSCC 2010
Pages65-68
Number of pages4
DOIs
StatePublished - 1 Dec 2010
Event2010 6th IEEE Asian Solid-State Circuits Conference, A-SSCC 2010 - Beijing, China
Duration: 8 Nov 201010 Nov 2010

Publication series

Name2010 IEEE Asian Solid-State Circuits Conference, A-SSCC 2010

Conference

Conference2010 6th IEEE Asian Solid-State Circuits Conference, A-SSCC 2010
CountryChina
CityBeijing
Period8/11/1010/11/10

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