Voltage transient response control circuit

The invention relates to a voltage transient response control circuit, which comprises a voltage regulation module and a voltage switching module, the voltage regulation module and the voltage switching module are respectively connected to a load, and the voltage regulation module is used for providing power supply low voltage for the load according to the power supply demand of the load; the voltage switching module is used for carrying out voltage detection on a load to obtain a load voltage, and generating a switching signal according to the change trend of the load voltage and the magnitude relationship between the load voltage and the first threshold value and the second threshold value; and according to the switching signal, controlling a switched capacitor in the voltage switching module to absorb redundant charges when the load voltage is overshot, and releasing the stored charges when the load voltage is dropped. According to the invention, transient response of a power supply can be improved, load capacitance can be reduced, control of overshoot and drop of load voltage can be realized, voltage can be used as a charge storage medium, redundant charges during overshoot of the load voltage can be absorbed and released during drop of the load, and energy utilization is more sufficient.