Patent ID: 8368375

Claim:
A switching regulator with transient control function, comprising: a power conversion circuit for receiving an input voltage and converting the input voltage to an output voltage; a feedback circuit for detecting the output voltage and generating a feedback signal representing the output voltage; an output capacitor coupled to an output terminal of the power conversion circuit; and a control circuit for receiving the feedback signal and generating a control signal to control the conversion operation by the power conversion circuit accordingly, wherein the control circuit includes a voltage balancing circuit which compares the feedback signal with a first reference signal to determine whether the output voltage is higher than a first predetermined threshold and compares the feedback signal with a second reference signal to determine whether the output voltage is lower than a second predetermined threshold, wherein the voltage balancing circuit discharges the output capacitor when the output voltage is higher than the first predetermined threshold, and the voltage balancing circuit charges the output capacitor when the output voltage is lower than the second predetermined threshold.