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A 100 MHz 91.5% Peak Efficiency Integrated Buck Converter With a Three-MOSFET Cascode Bridge

Abstract : High-switching frequency dc-dc converters are present in many applications, where wide regulation bandwidth and high efficiency are needed. A three-MOSFET cascode bridge is presented to get full benefit from digital CMOS technology advancements. Three-dimensional assembly with a capacitive interposer is proposed for high-frequency efficient decoupling. A test-chip is designed in 40-nm CMOS technology, validating the operation and the efficiency performance of the converter using the proposed cascode bridge. A conversion peak efficiency of 91.5% is demonstrated when converting 3.3 to 2.4 V with a 150-mA load current, while switching at 100 MHz.
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https://hal.archives-ouvertes.fr/hal-01272496
Contributor : Publications Ampère <>
Submitted on : Wednesday, February 10, 2016 - 9:35:02 PM
Last modification on : Monday, September 13, 2021 - 2:44:04 PM

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Florian Neveu, Bruno Allard, Christian Martin, Pascal Bevilacqua, Frederic Voiron. A 100 MHz 91.5% Peak Efficiency Integrated Buck Converter With a Three-MOSFET Cascode Bridge. IEEE Transactions on Power Electronics, Institute of Electrical and Electronics Engineers, 2015, 31 (6), pp.3985 - 3988. ⟨10.1109/TPEL.2015.2502058⟩. ⟨hal-01272496⟩

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