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An Improved Design Method for Monolithic CMOS Quasi-Square-Wave DC-DC Converters

Costa, V. ; Santos, P. M. ; Borges, B.

An Improved Design Method for Monolithic CMOS Quasi-Square-Wave DC-DC Converters, Proc Conf. on Telecommunications - ConfTele, Sta Maria Feira, Portugal, Vol. CD-ROM, pp. - , May, 2009.

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Abstract
This paper presents a study of resonant converter
topologies targeted for CMOS integration. An improved new
method to design efficient monolithic Quasi-Square-Wave
converters is proposed. A power loss model of the power stage
including the driver circuits used on the design method permits
to optimize the design parameters for the power stage and
conclude about the technology limitations. Based on this method
and taking as reference the 0.35ìm CMOS technology from
AMS a buck converter operating at 70MHz is designed.
Simulation results of the buck converter design are presented.