Texas Instruments Incorporated
Common control for multiple power converter operation modes

Abstract:

Aspects of the disclosure provide for a circuit. In some examples, the circuit includes an amplifier having a first input configured to receive a signal representative of a condition related to a power converter, a second input configured to receive a reference signal, and an output, a PWM regulation circuit having an input coupled to the output of the amplifier, a first output configured to provide a first control signal for a high-side transistor of the power converter, and a second output configured to output a first control signal for a low-side transistor of the power converter, and a PFM regulation circuit having an input coupled to the output of the first amplifier, a first output configured to output a second control signal for the high-side transistor of the power converter, and a second output configured to output a second control signal for the low-side transistor of the power converter.