A 200-MHz 4-phase fully integrated voltage regulator with local ground sensing dual loop ZDS hysteretic control using 6.5nH package bondwire inductors on 65nm bulk CMOS. - Minkyu Song; Joseph Sankman; Jayeol Lee; Dongsheng Brian Ma (ASP-DAC, 2016)

Quantizer-less proportional path fractional-N digital PLL with a low-power high-gain time amplifier and background multi-point spur calibration. - Minuk Heo; Sunghyun Bae; Jayeol Lee; Cheonsu Kim; Minjae Lee 001 (ESSCIRC, 2017)