Performance evaluation of CMOS low drop-out voltage regulators

This paper compares the performance of three low drop-out (LDO) voltage regulators (simple LDO, LDO with common-source, and LDO with source-follower) in load regulation and transient response. The regulators are designed in 1.6 /spl mu/m technology with three different error amplifier designs to investigate the regulating performance. The performance of each architecture is verified by simulation results.