A 12A 89.3% Peak Efficiency and 26mV Undershoot 12-to-1V Two-Stage Converter with Regulated Resonant Switched-Capacitor Regulators. - Shengdao Ren; Yukan Du; Menglian Zhao; Zhichao Tan; Chushan Li; Yong Ding 003; Wuhua Li; Wanyuan Qu (ISSCC, 2025)