A fully integrated gearbox capacitive DC/DC-converter in 90nm CMOS: Optimization, control and measurements

This paper presents a fully integrated capacitive DC/DC-converter with a gearbox type topology. By merging multiple topologies the output voltage range is increased. The dual loop digital control improves load regulation compared with a conventional hysteretic control and reduces ripple under low lo...

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Bibliographic Details
Main Authors: Van Breussegem, T, Steyaert, M
Format: Conference Proceeding
Language:English
Subjects:
Capacitors
Charge pumps
Converters
Impedance
Switching frequency
Topology
Voltage control
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Summary:This paper presents a fully integrated capacitive DC/DC-converter with a gearbox type topology. By merging multiple topologies the output voltage range is increased. The dual loop digital control improves load regulation compared with a conventional hysteretic control and reduces ripple under low load operation. The converter was implemented in a 90 nm CMOS technology and measurements are presented.
ISSN:1093-5142
DOI:10.1109/COMPEL.2010.5562379