Patent ID: 6894471

Claim:
A method of regulating the supply voltage of a load via a switching voltage regulator having an inductor driven by at least a power switch for delivering current to an output capacitor with a parasitic series resistance and connected between an output node of the regulator and ground and to a load connected in parallel to the capacitor, the method comprising: establishing a reference voltage; generating a comparison signal as the sum of a first voltage signal proportional to the current circulating in the inductor according to a certain proportionality coefficient and of a second voltage signal function of the difference between the output voltage and said reference voltage and of said first voltage signal; comparing said comparison signal with at least a threshold for generating a logic signal that switches between an active state and an inactive state and each time that the threshold is crossed; controlling said power switch as a function of the state of said logic signal; wherein the second voltage signal is generated by integrating the sum between said first signal and the difference, multiplied by a certain quantity (a), between the output voltage (V OUT ) of the regulator and said reference voltage (V′ REF ).