A low noise buck converter with a fully integrated continuous time ΣΔ modulated feedback controller

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

8 Scopus citations

Abstract

A low noise synchronous buck converter with a fully integrated second order single-bit continuous time σ δ modulator (CT-ΣΔM) based controller is presented. The converter is designed and fabricated on a 0.18 μm SiGe process. The feedback CT-SigmaDeltaM is sampled at 10 MHz with a single-bit non-return-to-zero (NRZ) output. Compared to a traditional PWM controller, the CT-ΣΔM controlled converter shapes the out-of-band noise and suppresses the in-band noise at the switching node by 25 dB with 92% efficiency.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE 2007 Custom Integrated Circuits Conference, CICC 2007
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages377-380
Number of pages4
ISBN (Electronic)1424407869, 9781424407866
DOIs
StatePublished - Jan 1 2007
Event29th Annual IEEE Custom Integrated Circuits Conference, CICC 2007 - San Jose, United States
Duration: Sep 16 2007Sep 19 2007

Publication series

NameProceedings of the IEEE 2007 Custom Integrated Circuits Conference, CICC 2007

Other

Other29th Annual IEEE Custom Integrated Circuits Conference, CICC 2007
CountryUnited States
CitySan Jose
Period9/16/079/19/07

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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