Species based on pre-amplified ripple fully integrated low-dropout linear regulator

Species based on pre-amplified ripple fully integrated low-dropout linear regulator, belonging to the field of power management technology. Positive to the negative input terminal of the transimpedance amplifier is positive transconductance amplifier input is connected the reference voltage Vref, the feedback voltage V connected to its negative input terminal and an output terminal connected to the transimpedance amplifier and the negative input terminal of the amplifier to the error the GND input is grounded, the output end of the error amplifier positive input terminal; an output terminal connected to the gate of the power transistor M error amplifier, its source connected to the input voltage V, its drain through a first and second voltage dividing resistors R output ground point GND in series, the first voltage dividing resistor and the second dividing resistor R R series arrangement of the voltage dividing resistor R feedback voltage V, the Miller capacitance C is connected between the drain of the power transistor M and the ground GND ; compensation circuit connected between the drain of the power transistor M and a voltage dividing point of the series resistor R and the second voltage dividing resistance R. While the present invention is to achieve a fast transient response is reduced Miller capacitance.