A design methodology for integrated inductor-based DC-DC converters

Vitor Costa; Santos, Pedro Mendonça dos; Borges, Beatriz

http://hdl.handle.net/10400.21/5071

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Authors

Vitor Costa

Santos, Pedro Mendonça dos

Borges, Beatriz

Abstract(s)

A design methodology for monolithic integration of inductor based DC-DC converters is proposed in this paper. A power loss model of the power stage, including the drive circuits, is defined in order to optimize efficiency. Based on this model and taking as reference a 0.35 mu m CMOS process, a buck converter was designed and fabricated. For a given set of operating conditions the defined power loss model allows to optimize the design parameters for the power stage, including the gate-driver tapering factor and the width of the power MOSFETs. Experimental results obtained from a buck converter at 100 MHz switching frequency are presented to validate the proposed methodology.

Keywords

CMOS technology Buck converter Integrated DC-DC converter

URI

http://hdl.handle.net/10400.21/5071

Citation

COSTA, Vítor; SANTOS, Pedro Mendonça dos; BORGES, Beatriz – A design methodology for integrated inductor-based DC-DC converters. Microelectronics Journal. ISSN: 0026-2692. Vol. 43, N.º 6 (2012), pp. 401-409.