Title :
Full on chip capacitance pmos low dropout voltage regulator
Author :
Kamal, Zared ; Hassan, Qjidaa ; Mouhcine, Zouak
Author_Institution :
Fac. des Sci., Univ. sidi Mohamed Ben Abdellah, Fez, Morocco
Abstract :
The growth in portable, battery operated devices and other complicated equipments which need high precision supply voltages has fueled the growth of the low dropout regulator(LDO) due to its many advantages. This paper presents a 2.8 V 50 mA on chip low dropout voltage regulator (LDO). The external capacitor is removed allowing for greater power system integration for system on-chip applications. The regulator is presented that provides a fast transient response, a low quiescent current 0.047 mA with a dropout voltage of 39 mV and a full range alternating current ac stability from 0-50 mA load current. The output variation when a full load step is applied 10 mV. It designed in 0.18 μm CMOS process.
Keywords :
CMOS integrated circuits; MOSFET; capacitors; system-on-chip; transient response; voltage regulators; CMOS process; PMOS low dropout voltage regulator; battery operated devices; current 0 mA to 50 mA; current 50 mA; current AC stability; external capacitor; fast transient response; full on chip capacitance; low quiescent current; power system integration; size 0.18 mum; system on-chip; voltage 10 mV; voltage 2.8 V; voltage 39 mV; Capacitors; Circuit stability; Power system stability; Regulators; Stability analysis; System-on-a-chip; Voltage control; Low dropout; low-voltage regulators; regulators; system on chip;
Conference_Titel :
Multimedia Computing and Systems (ICMCS), 2011 International Conference on
Conference_Location :
Ouarzazate
Print_ISBN :
978-1-61284-730-6
DOI :
10.1109/ICMCS.2011.5945660
