PoS - Proceedings of Science
Volume 313 - Topical Workshop on Electronics for Particle Physics (TWEPP-17) - Power Grounding and Shielding
A 2.5V Step-Down DC-DC Converter for Two-Stages Power Distribution Systems
G. Ripamonti*, S. Michelis, F. Faccio, G. Blanchot, S. Saggini, R. Rizzolatti, M. Ursino, A. Koukab and M. Kayal
Full text: pdf
Pre-published on: March 05, 2018
Published on: March 20, 2018
Abstract
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.
DOI: https://doi.org/10.22323/1.313.0059
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