Merged two-stage power converter with soft charging switched-capacitor stage in 180 nm CMOS

Robert C.N. Pilawa-Podgurski, David J. Perreault

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

Abstract

In this paper, we introduce a merged two-stage dc-dc power converter for low-voltage power delivery. By separating the transformation and regulation function of a dc-dc power converter into two stages, both large voltage transformation and high control bandwidth can be achieved. We show how the switched-capacitor stage can operate under soft charging conditions by suitable control and integration (merging) of the two stages. This mode of operation enables improved efficiency and/or power density in the switched-capacitor stage. A 5-to-1 V, 0.8 W integrated dc-dc converter has been developed in 180 nm CMOS. The converter achieves a peak efficiency of 81%, with a regulation stage switching frequency of 10 MHz.

Original languageEnglish (US)
Title of host publicationESSCIRC 2011 - Proceedings of the 37th European Solid-State Circuits Conference
Pages479-482
Number of pages4
DOIs
StatePublished - 2011
Externally publishedYes
Event37th European Solid-State Circuits Conference, ESSCIRC 2011 - Helsinki, Finland
Duration: Sep 12 2011Sep 16 2011

Publication series

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

Other

Other37th European Solid-State Circuits Conference, ESSCIRC 2011
Country/TerritoryFinland
CityHelsinki
Period9/12/119/16/11

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Merged two-stage power converter with soft charging switched-capacitor stage in 180 nm CMOS'. Together they form a unique fingerprint.

Cite this