Patent ID: 6888383

Claim:
A switching regulator that is arranged to provide current to a load circuit, comprising: a first resistor that is coupled between a first node and a second node, wherein the first node is associated with an input voltage; a second resistor that is coupled between the second node and a circuit ground; an inductor that is coupled between the first node and a third node; a third resistor that is coupled between the third node and a fourth node; a fourth resistor that is coupled between the fourth node and the circuit ground; a diode that is coupled between the third node and the load circuit; a capacitor that is coupled in parallel with the load circuit; a switch circuit that is arranged to selectively couple the third node to the circuit ground in response to a pulsed gate signal; and a voltage controlled oscillator that is responsive to a frequency signal from the third node and arranged to provide a pulsed gate signal, wherein the voltage controlled oscillator is: disabled by a first signal from the fourth node when the first signal is above a predetermined reference level, enabled when the first signal is below the predetermined reference level, and arranged to provide the pulsed gate signal when enabled such that the switch circuit is activated for a time interval that is associated with a pulse width that is determined by a second signal from the second node.