All-digital single-inductor multiple-output DC-DC converter with over 65.3% efficiency in 1 uW to 50 mW load range and 86.3% peak efficiency. - Manabu Yamada; Nam Binh Tran; Takayuki Miyazaki; Yoshiaki Yoshihara; Ryuichi Fujimoto (A-SSCC, 2016)