Session 21Compute and USB Power.pdf

1、Session 21 Overview:Compute and USB Power POWER MANAGEMENT SUBCOMMITTEEThe overarching theme of this session is design innovation in power converter topologies and control yielding simple and robust circuits that broadly achieves the following:1)inherently reducing passive needs;2)effective volume u

2、tilization of existing passives through continuous conduction;and 3)auto current and voltage balancing across the many phases or passives within.The session has excellent representation ofinnovationsin the compute and USB area from both industry as well as university researchers spanning from basic

3、buck converters to hybrid yet inductive converters as well as a resonant SC converter and a digital LDO.Overall,we have five papers covering 12V-to-1V converters with currents over 4.5A.Session Chair:John Pigott NXP Semiconductors,Chandler,AZ Session Co-Chair:Rinkle Jain Nvidia,Portland,OR 372 2025

4、IEEE International Solid-State Circuits ConferenceISSCC 2025/SESSION 21/COMPUTE AND USB POWER/OVERVIEW979-8-3315-4101-9/25/$31.00 2025 IEEE1:30 PM 21.1 A 12A 89.3%Peak Efficiency and 26mV Undershoot 12-t o-1V Two-St age Convert er wit h Regulat ed Resonant Swit ched-Capacit or Regulat ors Shengdao R

5、en,Zhejiang University,Hangzhou,China In Paper 21.1 from Zhejiang University,Hangzhou,China describes a 12-to-1V two-stage converter with regulated resonant switched-capacitor regulators using 65nm CMOS and reaching 89.3%efficiency.1:55 PM 21.2 A Dual-Input Bidirect ional 3-Level Bat t ery Charger w

6、it h Coarse-Fine VCF Balancing and Wide VCR for Foldable Mobile Applicat ions Woojin Hong,Samsung Electronics,Hwaseong,Korea In Paper 21.2 from Samsung Electronics,Hwaseong,Korea introduces a dual-input bidirectional 3-Level battery charger with VCF balancing and a wide input from 4.65-to-12V for mo