Patent ID: 8102162

Claim:
An integrated circuit controller for controlling the operation of a voltage converter, comprising: a first comparator for comparing a voltage associated with an input of a boost converter with a threshold voltage and generating a control signal in response thereto; a second comparator for comparing a second voltage associated with an output of the boost converter with a second threshold voltage and generating a second control signal in response thereto; driver circuitry for generating a first switching transistor drive signal and a second switching transistor drive signal, wherein the first switching transistor drive signal is used for driving an upper gate switching transistor of a buck converter and the second switching transistor drive signal may be configured in a first mode of operation to drive a lower gate switching transistor of the buck converter and may be configured in a second mode of operation to drive a switching transistor of the boost converter; and control logic for enabling/disabling at least a portion of the driver circuitry responsive to the control signal and the second control signal.