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Volume 343 - Topical Workshop on Electronics for Particle Physics (TWEPP2018) - Power, Grounding and Shielding
System level serial powering studies of RD53A chip
A. Pradas Luengo,* D. Koukola, S. Orfanelli, J. Christiansen, M. Karagounis, F. Arteche
*corresponding author
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Pre-published on: 2019 May 27
Published on: 2019 July 25
Serial powering is the baseline choice for low mass power distribution for the CMS and ATLAS HL-LHC pixel detectors. The RD53A prototype chip (65 nm CMOS) integrates 2 shunt-LDO (SLDO) regulators that allow providing constant voltage to each power domain (analog and digital) within a serial power chain with constant current. This paper presents a detailed analysis based on simulations and measurements of the RD53A chip behavior at system level. SLDO performance and system transient behavior (start-up, load changes, parasitic components implications).
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