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

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9 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 (Print)1424407869, 9781424407866
DOIs
Publication statusPublished - 2007
Event29th Annual IEEE Custom Integrated Circuits Conference, CICC 2007 - San Jose, United States
Duration: Sep 16 2007Sep 19 2007

Other

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

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Wong, M., Bakkaloglu, B., & Kiaei, S. (2007). A low noise buck converter with a fully integrated continuous time ΣΔ modulated feedback controller. In Proceedings of the IEEE 2007 Custom Integrated Circuits Conference, CICC 2007 (pp. 377-380). [4405756] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CICC.2007.4405756