Title :
A Chip-Area Efficient Voltage Regulator for VLSI Systems
Author :
Leung, Ka Nang ; Mai, Yuan Yen ; Mok, Philip K T
Author_Institution :
Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, China
fDate :
12/1/2010 12:00:00 AM
Abstract :
This paper presents an error amplifier structure to improve load regulation of low-voltage low-dropout regulators. The proposed error amplifier has ultrawide swing to extend the high-gain region so that the size of power transistor can be reduced. Experimental results show that the required power transistor size is reduced by 25% to achieve similar performance in load regulation. Moreover, extra power consumption and increase of silicon area are not significant.
Keywords :
VLSI; amplifiers; integrated circuit design; low-power electronics; voltage control; VLSI systems; chip-area efficient voltage regulator; error amplifier structure; load regulation; low-voltage low-dropout regulators; power transistor; ultrawide swing; Capacitance; Energy consumption; Energy management; High power amplifiers; Power transistors; Regulators; Silicon; Stability; Very large scale integration; Voltage; Load regulation; low-dropout regulator;
Journal_Title :
Very Large Scale Integration (VLSI) Systems, IEEE Transactions on
DOI :
10.1109/TVLSI.2009.2026176
