A low drop-out (LDO) voltage regulator that has high a PSRR (Power Supply Ripple
Rejection) performance and a high load regulation with low current consumption
is disclosed. The voltage regulator doses not require any high gain error amplifier
that may cause instability in the voltage regulator. A voltage-controlled current-feedback
is presented that generates an inverse phase signal and compensation voltage for
a ripple noise and dropout voltage, respectively. The voltage-controlled current-feedback
generates a negative voltage slope with regard to the power supply voltage, which
can cancel the ripple noise at the output terminal. The current-feedback creates
a positive coefficient voltage with regard to the load current, which compensates
the voltage drop caused by parasitic resistances.