• DocumentCode
    1964995
  • Title

    A wide-range DC/DC converter with 2nd order digital compensation and direct battery connection in 40nm CMOS

  • Author

    Shi, Justin ; Hsu, Ying-Chih ; Soenen, Eric ; Roth, Alan ; Gaither, Justin

  • Author_Institution
    TSMC, Austin, TX, USA
  • fYear
    2011
  • fDate
    19-21 Sept. 2011
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    This paper presents a digital DC-DC converter with 2nd order compensation and direct battery connect capability in 40nm CMOS. A combination of circuit and process technology is used to achieve an input range up to 5.5V with peak efficiencies of 95%. It also outlines an approach to optimize a control loop based on a sigma-delta ADC and higher order digital filter, which is demonstrated on a prototype achieving step response times under load below 38μs/V.
  • Keywords
    CMOS integrated circuits; DC-DC power convertors; digital control; digital filters; sigma-delta modulation; 2nd order digital compensation; CMOS process; DC-DC converter; control loop; digital filter; direct battery connection; sigma-delta ADC; size 40 nm; step response times; voltage 5.5 V; Batteries; DC-DC power converters; Digital control; Digital filters; IIR filters; Logic gates; Regulators;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Custom Integrated Circuits Conference (CICC), 2011 IEEE
  • Conference_Location
    San Jose, CA
  • ISSN
    0886-5930
  • Print_ISBN
    978-1-4577-0222-8
  • Type

    conf

  • DOI
    10.1109/CICC.2011.6055337
  • Filename
    6055337
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1964995