A single-inductor dual-output (SIDO) based power management with adaptive bus voltage modulation and zero cross-regulation in 40nm CMOS

Yu Huei Lee*, Tzu Chi Huang, Kuan Yu Chu, Chao Chang Chiu, Ke-Horng Chen, Ying Hsi Lin, Tsung Yen Tsai, Ching Yuan Yeh, Chen Chih Huang, Chao Cheng Lee

*Corresponding author for this work

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

Abstract

A single-inductor dual-output (SIDO) based power management with adaptive bus voltage (ABV) modulation and zero cross-regulation (CR) operation is proposed in this paper. To achieve the advanced power supply function in system-on-a-chip (SoC), the N-type low-dropout LDO regulator (N-LDR) is placed behind the SIDO converter to suppress voltage ripple and to eliminate the CR problem of SIDO converter. Besides, the proposed ABV modulator can adjust the output voltage of the SIDO converter as well as the dropout voltage on N-LDR according to the output load conditions. Thus, the power loss can be effectively minimized so as to enhance the power efficiency. Output voltage regulation and load transient response can be guaranteed simultaneously. The chip was fabricated by 40 nm CMOS process. Experimental results show the maximum 20 % energy saving in the proposed power management with a peak efficiency of 86 % and the high power supply rejection of 45dB at 1 MHz in N-LDR for SoC integration.

Original languageEnglish
Title of host publication2012 Proceedings of the European Solid State Circuits Conference, ESSCIRC 2012
Pages161-164
Number of pages4
DOIs
StatePublished - 14 Dec 2012
Event38th European Solid State Circuits Conference, ESSCIRC 2012 - Bordeaux, France
Duration: 17 Sep 201221 Sep 2012

Publication series

NameEuropean Solid-State Circuits Conference
ISSN (Print)1930-8833

Conference

Conference38th European Solid State Circuits Conference, ESSCIRC 2012
CountryFrance
CityBordeaux
Period17/09/1221/09/12

Fingerprint Dive into the research topics of 'A single-inductor dual-output (SIDO) based power management with adaptive bus voltage modulation and zero cross-regulation in 40nm CMOS'. Together they form a unique fingerprint.

  • Cite this

    Lee, Y. H., Huang, T. C., Chu, K. Y., Chiu, C. C., Chen, K-H., Lin, Y. H., Tsai, T. Y., Yeh, C. Y., Huang, C. C., & Lee, C. C. (2012). A single-inductor dual-output (SIDO) based power management with adaptive bus voltage modulation and zero cross-regulation in 40nm CMOS. In 2012 Proceedings of the European Solid State Circuits Conference, ESSCIRC 2012 (pp. 161-164). [6341284] (European Solid-State Circuits Conference). https://doi.org/10.1109/ESSCIRC.2012.6341284