Radiation-tolerant digital multiphase current-mode hysteretic point-of-load regulator

Philippe C. Adell, Ming Sun, Kishan Joshi, Gregory Allen, Zhe Yang, Bertan Bakkaloglu

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

A radiation-tolerant digital multiphase current-mode hysteretic point-of-load regulator fabricated on a commercial 180-nm CMOS process is presented. Experiments and simulations are used to demonstrate its single-event immunity and its total-dose tolerance over 100 krad(Si). Key electrical performance parameters are: 5-V input, 0.8-3.3 V output, 10-A load current, 93% peak efficiency, four-phase hysteretic quasi-current-mode buck converter with ±1.5% frequency synchronization, ±3.6% current sharing error, and 1% ripple.

Original languageEnglish (US)
Pages (from-to)896-902
Number of pages7
JournalIEEE Transactions on Nuclear Science
Volume65
Issue number3
DOIs
StatePublished - Mar 2018

Keywords

  • Digital control
  • point-of-load
  • power
  • radiation
  • radiation hardening

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering

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