rPOL2V5: a compact radiation-hard resonant switched-capacitor DC-DC converter for the CMS HGCAL
-
Published:2022-01-01
Issue:01
Volume:17
Page:C01056
-
ISSN:1748-0221
-
Container-title:Journal of Instrumentation
-
language:
-
Short-container-title:J. Inst.
Author:
Caregari S.,Ripamonti G.,Antoszczuk P.D.,Michelis S.,Saggini S.
Abstract
Abstract
A radiation-tolerant resonant switched-capacitor DC-DC converter (rPOL2V5) has been developed to supply the front-end analog and digital circuits for the detectors used in the LHC High Luminosity upgrades. It has been of particular interest to the CMS High-Granularity Calorimeter (HGCAL) community due to its lower volume compared to existing radiation-hard buck converters. rPOL2V5 is based on an ASIC developed using 130 nm CMOS technology. It is powered by a 2.5 V input and it can supply a maximum current from 2 A to 5 A, depending on the output voltage value, which can range from 1 V to 1.5 V. This work presents the strategies adopted at the ASIC and PCB level to bring the converter to maturity, and its electrical and radiation characterisation results.
Subject
Mathematical Physics,Instrumentation
Reference9 articles.
1. Custom DC-DC converters for distributing power in SLHC trackers;Faccio,2008
2. An integrated regulated resonant switched-capacitor DC-DC converter for PoL applications;Ripamonti
3. New generation of switched capacitor converters;Cheng
4. Resonant-switched capacitor converters for chip-scale power delivery: design and implementation;Kesarwani;IEEE Trans. Power Electron.,2015