A 97.6%-Efficient 1-2MHz Hysteretic Buck Converter with 7V/s DVS-Rate Enabled by Isosceles-Triangular Shunt Current Push-Pull Technique
This paper presents a fast dynamic voltage scaling (DVS) buck converter without losing high efficiency. The proposed isosceles-triangular shunt current (ITSC) push-pull technique allows a turning-point for optimal DVS to be independent of passive components while supplying sufficient current of 35A/s. Current-tailing handover (CTH) realizes no voltage droop after DVS even under resistive loads. ITSC and CTH can also enhance load-transient response. The chip fabricated in 180-nm CMOS achieves 7V/s DVS-rate and 97.6% peak efficiency.
- Publisher
- IEEE
- Issue Date
- 2022-06-12
- Language
- English
- Citation
2022 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits), pp.194 - 195
- ISSN
- 0743-1562
- Appears in Collection
- EE-Conference Papers(학술회의논문)
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