Abstract: In one embodiment, a switching regulator comprises a control circuit that activates and deactivates at least one power switch to control a voltage of a switching node. The system also comprises an inductor that conducts a current from the switching node to an output to generate an output voltage. The system further comprises a PWM comparison circuit that controls an on-time and/or an off-time of the at least one power switch based on a comparison of a feedback voltage and a reference voltage. The PWM comparison circuit comprises a ramp signal generator configured to provide a ramp signal having a non-zero slope that is combined with either the feedback voltage or the reference voltage at a beginning of either the on-time or the off-time. The PWM comparison circuit can be further configured to set the slope of the ramp signal to zero during the off-time in a discontinuous conduction mode.

Abstract: A high speed totem pole FET driver circuit with differential cross-conduction prevention. The driver circuit includes first and second switching elements coupled to a first node, and third and fourth switching elements coupled to a second node. The first node is coupled to a first current source, a pulldown circuit, and the input of the third switching element. The second node is coupled to a second current source, a pullup circuit, and the input of the second switching element. Trigger inputs are applied to the inputs of the first and fourth switching elements to switch the first and fourth switches ON and OFF, wherein the two trigger inputs are of opposite phase so that when one input is HIGH (LOW) the other input is LOW (HIGH). The second switching element may include a comparator circuit with its non-inverting input coupled to the second node, its inverting input coupled to a power source via a V.sub.