Non-synchronous boost converter including switched schottky diode for true disconnect

A non-synchronous boost converter receiving an input DC voltage and providing an output DC voltage greater than the input DC voltage, the boost converter comprising:

• a controller coupled to receive the input DC voltage on an input voltage terminal and generate a switched output voltage on a switched output voltage terminal, the controller further receiving an enable signal on an enable terminal and a feedback voltage on a feedback terminal, the enable signal being asserted to turn on the boost converter and being deasserted to turn off the boost converter;
• a switched Schottky diode having an anode terminal coupled to the switched output voltage terminal, a cathode terminal providing the output DC voltage, and a gate terminal coupled to receive a control signal, the control signal having a first state for turning the switched Schottky diode on where the switched Schottky diode conducts current when forward biased and a second state for turning the switched Schottky diode off where forward conduction of the switched Schottky diode is blocked even when the switched Schottky diode is forward biased, the control signal being related to the enable signal;
• an inductor coupled between the input DC voltage terminal and the switched output voltage terminal;
• a capacitor coupled between the output voltage terminal and a first power supply voltage;
• and
• a voltage divider coupled between the output voltage terminal and the first power supply voltage, the voltage divider providing the feedback voltage at an output node of the voltage divider.