A Fully Integrated Buck Regulator with 2-GHz Resonant Switching for Low-Power Applications

Tianyu Jia, Jie Gu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

This paper presents a fully integrated buck regulator design for low-power applications. In order to enable the usage of on-chip inductor for low load current 10-40 mA, the proposed buck regulator is designed with an ultra-high switching frequency at 2 GHz, which is the highest switching frequency reported so far. To reduce the power switch losses, resonant switching scheme is utilized to save the switching clock energy. Tunable slew rate recovery circuits are used to improve the efficiency of the design. The proposed buck regulator has been implemented in 65-nm CMOS technology with a 1.1-V input. Measurement shows a wide output range of 0.3-0.86 V. The proposed design achieves up to 73% power efficiency.

Original languageEnglish (US)
Article number8386797
Pages (from-to)2663-2674
Number of pages12
JournalIEEE Journal of Solid-State Circuits
Volume53
Issue number9
DOIs
StatePublished - Sep 2018

Keywords

  • Buck regulator
  • fully integrated
  • high switching frequency
  • low-power applications
  • resonant switching

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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