Abstract—An off-chip load driving low drop-out regulator with high power-supply rejection is proposed in this paper. The 1.2-V
regulator uses adaptive frequency compensation and is stable at all load currents. A power-supply rejection of 70dB with load
and line regulation figures of under 2mV and 10mV for 1-350mA and 2.1-3.6V load current and power supply variations were measured on a 65-nm CMOS prototype consuming under 0.05mm2 core area and 40μA quiescent current.