an unregulated inductorless direct current to direct current converter comprising a first voltage - to - current converter configured to convert a first voltage to a first current and a second voltage - to - current converter configured to convert a second voltage to a second current . a regulation circuit is coupled to the first and second voltage - to - current converters and configured to generate an output current proportional to the difference between the first and second currents . also a variable frequency oscillator is coupled to the regulation circuit , the oscillator receiving as a control current the output current therefrom and outputting a clock signal having a frequency proportionate to the control current . the converter further comprises an output stage coupled to receive the clock signal and receiving an input voltage and outputting an output voltage , the output voltage and the input voltage having a ratio that is determined by the clock signal .