Design of a highly integrated, high frequency, low power DC-DC converter with cascode power stage with a 2.5D approach
Conference: CIPS 2016 - 9th International Conference on Integrated Power Electronics Systems
03/08/2016 - 03/10/2016 at Nürnberg, Deutschland
Proceedings: CIPS 2016
Pages: 5Language: englishTyp: PDF
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Authors:
Neveu, F.; Martin, C.; Allard, B.; Bevilacqua, P. (Université Claude Bernard Lyon I, INSA Lyon, Ampere, CNRS UMR 5005, Lyon, France)
Voiron, F. (IPDiA, Caen, France)
Abstract:
The paper presents the design and measurements for very high frequency, low power, inductive DC-DC converters (100 MHz, 3:3 V input voltage, 350 mW output power). Preliminary analyses including the state-of-the-art, the architecture and the technology are briefly discussed. A converter is designed as a power system-in-package, based on a cascode power stage in a 2.5D assembly using a capacitive interposer embedding deep trench capacitors. Experimental characterizations are presented. An efficiency of 90 % is demonstrated while converting from 3:3 V to 2:4 V and supplying 150 mA, showing a + 8 % efficiency improvement compared to a converter with a standard power stage.