A 2.5V Step-Down DC-DC Converter for Two-Stages Power Distribution Systems

A prototype second-stage buck DC-DC converter has been designed in 130 nm CMOS and fully characterized. This circuit provides up to 3 A at an adjustable output voltage of 0.6-1.5 V from an intermediate bus voltage of 2.5 V. Hardening-by-design techniques have been systematically used, and the protot...

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Detalles Bibliográficos
Autores principales: Ripamonti, Giacomo, Michelis, Stefano, Faccio, Federico, Blanchot, Georges, Saggini, Stefano, Rizzolatti, Roberto, Ursino, Mario, Koukab, Adil, Kayal, Maher
Lenguaje:eng
Publicado: SISSA 2018
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.22323/1.313.0059
http://cds.cern.ch/record/2315732
Descripción
Sumario:A prototype second-stage buck DC-DC converter has been designed in 130 nm CMOS and fully characterized. This circuit provides up to 3 A at an adjustable output voltage of 0.6-1.5 V from an intermediate bus voltage of 2.5 V. Hardening-by-design techniques have been systematically used, and the prototype successfully passed TID irradiation up to 200 Mrad (SiO2) and Single Event Effects tests with a heavy ion beam. Safe integration on-board requires an optimized PCB design and bump-bonding assembly to reduce parasitic inductances along the input current path.

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