A 1.39-V input fast-transient-response digital LDO composed of low-voltage MOS transistors in 40-nm CMOS process. - Masafumi Onouchi; Kazuo Otsuga; Yasuto Igarashi; Toyohito Ikeya; Sadayuki Morita; Koichiro Ishibashi; Kazumasa Yanagisawa (A-SSCC, 2011)

28-nm HKMG GHz digital sensor for detecting dynamic voltage drops in testing for peak power optimization. - Mitsuhiko Igarashi; Kan Takeuchi; Yoshio Takazawa; Yasuto Igarashi; Hiroaki Matsushita (CICC, 2012)

An on-chip 250 mA 40 nm CMOS digital LDO using dynamic sampling clock frequency scaling with offset-free TDC-based voltage sensor. - Kazuo Otsuga; Masafumi Onouchi; Yasuto Igarashi; Toyohito Ikeya; Sadayuki Morita; Koichiro Ishibashi; Kazumasa Yanagisawa (SoCC, 2012)

An On-Chip DC-DC Converter and Power Management System Achieving Zero Standby-to-Active Transition Time in MCU. - Toyohiro Shimogawa; Makoto Nonaka; Toma Ogata; Toshiki Kiryu; Yasuto Igarashi; Kosuke Yayama; Masahiro Kitamura; Hiromichi Ishikura; Mitsuru Hiraki; Masao Ito; Takashi Kono (A-SSCC, 2023)