A Chip-Area Efficient Voltage Regulator for VLSI Systems

摘要

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.