Self-adaptive peak current control circuit suitable for BUCK PSM work and electronic equipment

The embodiment of the invention provides a self-adaptive peak current control circuit suitable for BUCKPSM work and electronic equipment. The self-adaptive peak current control circuit comprises a reference current generation module, a slope current generation module, a current processing module and a comparison module, the reference current generation module determines target reference current according to the reference voltage; the ramp current generation module determines target ramp current according to the ramp voltage; the current processing module determines target peak current according to the target reference current and the target slope current; the comparison module determines a sampling voltage according to the target peak current and the reference resistance, and determines a control signal according to the sampling voltage and the switch node voltage. The peak current is linearly adjusted according to the conduction time of the upper power tube, the problems that the BUCK circuit is low in effic