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Frequency tunable low ripple and fast response on-chip DC–DC converter for DVFS
Published in Springer Science and Business Media LLC
Volume: 90
Issue: 3
Pages: 639 - 644

Dynamic voltage and frequency scaling (DVFS) is an efficient method to reduce the power consumption in system on-chip. To support DVFS, multiple supply voltages are generated based on different work load frequencies and currents using on-chip DC–DC voltage converter. In this paper a frequency tunable multiple output voltage switched capacitor based dc–dc converter is presented. An analog to digital converter and phase controller is used in the feedback to change the switching frequency and duty cycle of the converter. An input voltage of 1.8 V is converted to 0.6 and 0.8 V for low and high signal frequency respectively. The proposed 2-phase switched capacitor architecture with gain setting of 1:2 is designed with the 90 nm technology. An output ripple of 45 mV is observed and the maximum transient response time of the converter is 17.3 ns (= 58 MHz). © 2016, Springer Science+Business Media New York.

About the journal
JournalData powered by TypesetAnalog Integrated Circuits and Signal Processing
PublisherData powered by TypesetSpringer Science and Business Media LLC
Open AccessNo