A port power switch (PPS) may be used for lead compensation in systems where power is provided to a connected device by a switch-mode power supply (SMPS). The PPS may be designed to co-operate with the SMPS, providing a mechanism for the feedback reference point of the SMPS to be automatically switched, in the event of system fault or some other condition that might result in the PPS entering an “OFF’ operating mode, from the application point of load (POL) to the voltage input pin of the PPS without loss of power path continuity. The switching mechanism and the PPS may be manufactured to reside on the same integrated circuit. The PPS may include a control block that generates a control signal to couple the feedback port of the SMPS to the POL under normal operation, and to the voltage input port of the PPS during a fault condition.