• DocumentCode
    498026
  • Title

    A hybrid DC-DC converter for sub-microwatt sub-1V implantable applications

  • Author

    Wieckowski, Michael ; Chen, Gregory K. ; Seok, Mingoo ; Blaauw, David ; Sylvester, Dennis

  • Author_Institution
    University of Michigan, Ann Arbor, U.S.A.
  • fYear
    2009
  • fDate
    16-18 June 2009
  • Firstpage
    166
  • Lastpage
    167
  • Abstract
    A DC-DC converter for sub-microwatt sub-1V loads is presented for efficient supply regulation of implantable devices powered by thin-film batteries. Using a hybrid, switched-capacitor architecture, it provides 444mV of DC output from a 3.6V DC source. Ultra-low power clock generation, level conversion, and linear regulation, combined with a unique startup circuit, enable a peak efficiency of 56% (4.6X ideal linear regulator) for loads from 5nA to 500nA. Fabricated in 130nm CMOS, it occupies 0.26mm2.
  • Keywords
    Battery charge measurement; Circuits; Clocks; DC-DC power converters; Model driven engineering; Oscillators; Regulators; Switches; Switching converters; Voltage;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    VLSI Circuits, 2009 Symposium on
  • Conference_Location
    Kyoto, Japan
  • Print_ISBN
    978-1-4244-3307-0
  • Electronic_ISBN
    978-4-86348-001-8
  • Type

    conf

  • Filename
    5205392
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=498026