Designing an ultra low quiescent current buck switching regulator
Name
387772007-MIT.pdf
Description
Full printable version
Size
8.04 MB
Format
Adobe PDF
Checksum (MD5)
97e80c44cbfef4f8a0b39ec0964bf1c2
Author(s)
Gardner, John Underhill
Advisor(s)
Leonard Shatargot and David J. Perreault.
Date Issued
2008
Publisher
Massachusetts Institute of Technology
Abstract
The new buck regulator proposed in this thesis was designed to operate with only a few micro-amps of supply current during no load output conditions, while maintaining low output voltage ripple. The regulator also has high efficiency for current loads above an amp to make the converter useful in a variety of applications. The specifications will be achieved by implementing a control scheme similar to the one used in the LT3481 buck regulator. The converter will use burst mode, pulse frequency modulation, and pulse width modulation to achieve control over the entire load range. The capabilities of a full BiCMOS process technology will be taken advantage of to enable implementation of good control dynamics at low currents. This micropower buck regulator was designed, fabricated, and tested in silicon to measure its characteristics as compared to simulation and desired specifications.
Description
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008.
Includes bibliographical references (p. 119-120).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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