Title :
An adaptively biased low-dropout regulator with transient enhancement
Author :
Zhan, Chenchang ; Ki, Wing-Hung
Author_Institution :
Hong Kong Univ. of Sci. & Technol., Hong Kong, China
Abstract :
An output-capacitor-free adaptively biased low-dropout regulator with transient enhancement (ABTE LDR) is proposed. Techniques of Q-reduction compensation, adaptive biasing, and transient enhancement achieve low-voltage high-precision regulation with low quiescent current consumption while significantly improving the line and load transient responses and power supply rejections. The features of the ABTE LDR are experimentally verified by a 0.35-μm CMOS prototype.
Keywords :
CMOS integrated circuits; capacitors; controllers; transient response; voltage regulators; ABTE LDR; CMOS prototype; Q-reduction compensation; load transient enhancement; output-capacitor-free adaptively biased low- dropout regulator; power supply rejections; quiescent current consumption; size 0.35 mum; Capacitors; Logic gates; Regulators; Semiconductor device measurement; System-on-a-chip; Transient analysis; Voltage control;
Conference_Titel :
Design Automation Conference (ASP-DAC), 2011 16th Asia and South Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-7515-5
DOI :
10.1109/ASPDAC.2011.5722166
