Electronic device and method for power measurement

An electronic device comprising a switched mode power converter comprising a switched transistor (SW), an inductor (IND), an error amplifier (EA), the switched transistor being configured to switch a current through the inductor and the error amplifier being configured to control the switching of the switched transistor in order to convert a primary voltage applied at an input of the switched mode power converter into a secondary voltage at an output of the switched mode power converter, wherein the electronic device further comprises an oscillator (OSC), a control logic stage (CNTL) and a digital counter (CNT) wherein the control logic stage is coupled to receive a clock signal from the oscillator and to generate switching signals for the switched transistor in form of ON-time pulses with a constant width ON-time according to a pulse density scheme, and wherein the counter is configured to count a number of ON-time pulses for determining a consumed power based on the number of ON-time pulses per time.