A 2-8V Vin 670mA Scalable Multi-Ratio SC DCDC Converter for MCU Integration in 28nm CMOS Achieving 91% Peak Efficiency. - Adrian Gehl; Kyrylo Cherniak; Olga Kharko; Gianluca Marin; Petru Bacinski; Frank Prämaßing; Bernhard Wicht (ESSCIRC, 2023)