an offset peak current mode control circuit is provided for use with a multiple - phase dc - to - dc voltage converter including a plurality of converter modules connected to a common load and having a common input voltage source , a current sensor coupled to a sensing resistor disposed in series between the common input voltage source and the load to derive a current sense signal corresponding to current passing through the sensing resistor , and a voltage error sensor coupled to the load to derive a voltage error signal corresponding to difference between an output voltage of the voltage converter and a reference voltage . when the dc - to - dc voltage converter is operated with a relatively low input voltage or a relatively high duty cycle resulting in an overlap of the current sense signal , the offset peak current mode control circuit utilizes information from the clean portion of the current sense signal , and then stretches the duty cycle applied to an associated voltage converter module so that it extends into the time of the overlapping portion of the current sense signal .