This application relates to a power converter circuit for converting a supply voltage received at an input node and providing, at an output node, a current at the converted supply voltage. The power converter circuit contains a DC-DC converter circuit for generating the current at the output node under control of a control signal, a current sensing circuit for sensing a current indicative of a current at the input node, a voltage adjustment circuit for sensing a voltage indicative of the supply voltage and generating an adjusted voltage on the basis of the sensed voltage and the sensed current, and an error amplifier stage for generating the control signal on the basis of the adjusted voltage and a reference voltage. The application further relates to a method of operating such power converter circuit.