Title :
A method for stability compensation of low-load-capacitor low-power LDO
Author :
Mandal, Sajal Kumar
Author_Institution :
STMicroelectronics, Greater Noida, Noida
fDate :
Aug. 31 2008-Sept. 3 2008
Abstract :
A stability compensation method for low-load-capacitor low dropout regulator (LDO) is presented. A ldquozeropsilas frequency trackingrdquo as well as ldquonon-dominant parasitic polespsila frequency reshapingrdquo are performed to obtain nearly first order system behavior out of several quite unmanageable locations of pole-zero frequencies of uncompensated system. The LDO consumes 170 muA (including the consumption of reference circuit) over full load current range and is implemented on 0.13 mum CMOS technology.
Keywords :
CMOS integrated circuits; capacitors; voltage regulators; CMOS technology; current 170 muA; low dropout regulator; low-load-capacitor low-power LDO; nondominant parasitic pole frequency reshaping; pole-zero frequency locations; size 0.13 mum; stability compensation method; zero frequency tracking; Bandwidth; Capacitors; Circuits; Clocks; Frequency; Paramagnetic resonance; Regulators; Stability; Transient response; Voltage;
Conference_Titel :
Electronics, Circuits and Systems, 2008. ICECS 2008. 15th IEEE International Conference on
Conference_Location :
St. Julien´s
Print_ISBN :
978-1-4244-2181-7
Electronic_ISBN :
978-1-4244-2182-4
DOI :
10.1109/ICECS.2008.4674841
