Figure 16

Simulated graphs for PSRR of V _PWR vs. frequency of the closed loop regulator driving a load ( R _L = 250 Ω ): using a two-stage classical amplifier without M ₀₀ transistor (2sReg w/o M ₀₀ ); using a two-stage classical amplifier with M ₀₀ transistor (2sReg w/ M ₀₀ ); using folded-cascoded amplifier with M ₀₀ transistor (fcReg w/ M ₀₀ ); and PSRR of the voltage reference itself ( V _ref ), (Typical process, T=37 °C, V _PWR = 1.0 V).