CERN Accelerating science

CMS Note
Report number	CMS-CR-2017-385
Title	Serial powering optimization for CMS and ATLAS pixel detectors within RD53 collaboration for HL-LHC: system level simulations and testing
Author(s)	Orfanelli, Stella (CERN) ; Christiansen, Jorgen (CERN) ; Hamer, Matthias (U. Bonn (main)) ; Hinterkeuser, F (U. Bonn (main)) ; Karagounis, M (FH Dortmund) ; Pradas Luengo, Alvaro (Zaragoza, ITA) ; Marconi, Sara (INFN, Perugia ; Perugia U. ; CERN) ; Ruini, Daniele (Zurich, ETH)
Publication	2017
Imprint	25 Oct 2017
Number of pages	5
In:	PoS TWEPP-17 (2017) 055
In:	Topical Workshop on Electronics for Particle Physics, Santa Cruz, Ca, United States Of America, 11 - 15 Sep 2017, pp.055
DOI	10.22323/1.313.0055
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; CMS
Abstract	Serial powering is the baseline choice for low mass power distribution for the CMS and ATLAS HL-LHC pixel detectors. Two 2.0 A Shunt-LDO regulators are integrated in a prototype pixel chip implemented in 65-nm CMOS technology and used to provide constant supply voltages to its power domains from a constant input current. Performance results from testing prototype Shunt-LDO regulators are shown, including their behaviour after x-ray irradiation. The system level simulation studies, which had been performed with a detailed regulator design in a serially powered topology, have been validated.
Copyright/License	Copyright owned by the author(s) (License: CC-BY-NC-ND-4.0)

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