An integrated circuit comprises an embedded switchable power ring for supplying power to circuit modules (15.1, . . . , 15.5) arranged within the switchable power ring (13). The switchable power ring (13) comprises a switch control unit (20) for generating an on/off control signal and multiple switch power units (30) controlled by the on/off control signal for providing a switched current as power supply for the circuit modules (15.1, . . . , 15.5). The multiple switch power units (30) being arranged in a ring shape on the integrated circuit (2').