Title :
A fast settling on-chip low-dropout regulator with a robust frequency compensation scheme
Author :
Mojarad, Mortaza ; Yavari, Mohammad
Author_Institution :
Dept. of Electr. Eng., Amirkabir Univ. of Technol., Tehran, Iran
Abstract :
An on-chip low-dropout (LDO) voltage regulator with a novel technique to improve the settling time and a robust frequency compensation scheme is presented in this paper. The total capacitance required for the utilized compensation topology is only 2.8 pF. The proposed LDO regulator was implemented in a standard 0.35 μm CMOS technology and the simulation results show that the implemented LDO regulator operates from a supply voltage of 2 V to 4 V with a dropout voltage of 200 mV and the maximum load current of 120 mA, consuming 45 μA quiescent (ground) current.
Keywords :
CMOS integrated circuits; compensation; network topology; voltage regulators; LDO; capacitance 2.8 pF; compensation topology; current 120 mA; current 45 muA; fast settling on-chip low-dropout voltage regulator; quiescent ground current; robust frequency compensation scheme; size 0.35 mum; standard CMOS technology; voltage 2 V to 4 V; voltage 200 mV; Chirp; Lead; MOSFET circuits; RNA; Regulators; Low-dropout regulators; fast settling; frequency compensation; on-chip regulators; voltage regulators;
Conference_Titel :
Electrical Engineering (ICEE), 2012 20th Iranian Conference on
Conference_Location :
Tehran
Print_ISBN :
978-1-4673-1149-6
DOI :
10.1109/IranianCEE.2012.6292371
