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A 10MHz 2mA-800mA 0.5V-1.5V 90% Peak Efficiency Time-Based Buck Converter with Seamless Transition between PWM/PFM Modes

Cited 1 time in Web of Science Cited 4 time in Scopus
Authors

Kim, Seong Joong; Choi, Woo Seok; Pilawa-Podgurski, Robert; Hanumolu, Pavan Kumar

Issue Date
2017-05
Publisher
Institute of Electrical and Electronics Engineers Inc.
Citation
Proceedings of the Custom Integrated Circuits Conference, p. 7993619
Abstract
We present a 10MHz buck converter with enhanced light load efficiency achieved by combining time-based PWM control with PFM. The proposed seamless transition technique provides additional degree of freedom to extend high efficiency regime across a wider range of load current. Fabricated in a 65nm CMOS, the prototype achieves 90% peak efficiency and > 80% efficiency over I-LOAD range of 2mA to 800mA. V-O changes by less than 40mV during PWM to PFM transitions.
ISSN
0886-5930
URI
https://hdl.handle.net/10371/203172
DOI
https://doi.org/10.1109/CICC.2017.7993619
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  • College of Engineering
  • Department of Electrical and Computer Engineering
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