Capacitorless Self-Clocked All-Digital Low-Dropout Regulator

Abstract

This paper presents a capacitorless self-clocked digital low-dropout (SC-DLDO) regulator with self-shifting bidi- rectional shift registers (SS-BiSHRs) for power management applications in a system-on-chip (SoC). The load transient response is accelerated by utilizing coarse-then-fine control. Our voltage-range detector ensures accurate transition between coarse and fine loops without glitches or spikes in the output voltage. Moreover, the proposed SS-BiSHRs reduce the transient response time whil