Thin Gate Oxide CMOS DC-DC Buck Converter with Floating Gate Drivers

Joel Gak, Jorge Marin, Nicolas Gonzalez, Daniel Arevalos, Nicolas Calarco, Matias Miguez, Alfonso Cortes, Vicente Osorio, Mario Romero, Christian A. Rojas

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This document is a model and instructions for DTEX. This work focuses on the design of a CMOS DC-DC buck converter targeting input voltages higher than the limited gate-source voltage common in thin oxide technology. This is enabled by driving the power device gates using fully integrated circuitry which allows floating voltages in the high -side device using bootstrapping. The gate driver has been fully characterized in simulation, showing low to high an high to low times below 12ns. The bootstrapped level shifter has been integrated together with a dual-NMOS half bridge using the Skywater 130nm Opensource CMOS technology. Simulations show a peak efficiency of 91 % at 38.2mA current load for a 10V to 3.3V DC-DC conversion, extending the input voltage range previously reported in this technology by 2X.

Original languageEnglish
Title of host publicationProceedings of the 2024 Argentine Conference on Electronics, CAE 2024 - Congreso Argentino de Electronica 2024, CAE 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages120-123
Number of pages4
ISBN (Electronic)9798350305081
DOIs
StatePublished - 7 Mar 2024
Event6th Argentine Conference on Electronics, CAE 2024 - Bahia Blanca, Argentina
Duration: 7 Mar 20248 Mar 2024

Publication series

NameProceedings of the 2024 Argentine Conference on Electronics, CAE 2024 - Congreso Argentino de Electronica 2024, CAE 2024

Conference

Conference6th Argentine Conference on Electronics, CAE 2024
Country/TerritoryArgentina
CityBahia Blanca
Period7/03/248/03/24

Keywords

  • CMOS
  • floating gate
  • Thin Oxide

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