A Fast Settling On-Chip Low-Dropout Regulator with a Robust Frequency Compensation Scheme
Keywords:
Low-dropout regulators, voltage regulators, onchipregulators, fast settling, frequency compensation.
Abstract:
An on-chip low-dropout (LDO) voltage regulator with anovel technique to improve the settling time and a robustfrequency compensation scheme is presented in this paper. Thetotal capacitance required for the utilized compensation topologyis only 2. 8 pF. The proposed LDO regulator was implemented in astandard 0. 35 یm CMOS technology and the simulation resultsshow that the implemented LDO regulator operates from a supplyvoltage of 2 V to 4 V with a dropout voltage of 200 mV and themaximum load current of 120 mA, consuming 45 یA quiescent(ground) current.