Title :
A Capacitor-Free CMOS Low-Dropout Regulator
Author :
Loikkanen, Mikko ; Kostamovaara, Juha
Author_Institution :
Dept. of Electr. & Inf. Eng., Oulu Univ.
Abstract :
A 2.5V capacitor-free CMOS low dropout regulator for powering analog circuits is presented. Stable operation is achieved with or without a large load capacitor by replacing the bulky external output capacitor with an operational amplifier-based active circuit. The regulator provides a 100mA output current and consumes 80muA regardless of the load current.
Keywords :
CMOS integrated circuits; analogue circuits; operational amplifiers; voltage regulators; 100 mA; 2.5 V; 80 muA; CMOS low-dropout regulator; analog circuits; load capacitor; operational amplifier; CMOS analog integrated circuits; Capacitors; Circuit stability; Circuit topology; Costs; Feedback loop; Frequency; Operational amplifiers; Power engineering and energy; Regulators;
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
DOI :
10.1109/ISCAS.2007.378349
