Abstract: A voltage controller and method providing multiple modes of operation. Embodiments include pulse-width modulation (PWM), feed-forward (FF), pulse-frequency modulation (PFM) and skip operation (PWM-FF-PFM/SKIP). Controller embodiments have integrated MOSFET components, comparator hysteresis, oscillator feed-forward, fixed gain, and error amplifier (EA) limits thereby providing improved efficiency and noise immunity.

Abstract: A controller for a DC to DC converter with reference voltage loop disturbance compensation. The controller may include an error amplifier configured to receive a first signal representative of an actual output voltage of the DC to DC converter and a reference signal representative of a desired output voltage of the DC to DC converter and to provide an error signal representative of a difference between the first signal and the reference signal. The controller may also include a PWM modulator with reference voltage compensation circuitry configured to receive the error signal and compensate for a change in the reference signal in order to control overshoot and undershoot of the actual output voltage from a desired voltage due to the change of the reference signal. An electronic device and method are also provided.

Abstract: An over voltage protection circuit for single phase and multiphase buck converters. According to one embodiment, upon the occurrence of an over voltage condition, the high side switch is turned Off and the low side switch is On. As the output voltage drops below a lower threshold, the low side switch is turned Off thereby reducing or eliminating negative spikes on the voltage output.