Boost and LDO hybrid converter with dual-loop control

A method comprising:

• receiving an input voltage at a first terminal of an inductor of a hybrid converter;
• if the input voltage is less than an output voltage of the hybrid converter, configuring the hybrid converter as a boost converter, wherein the configuring the hybrid converter as the boost converter comprises driving a gate of a p-type metal oxide semiconductor device (pMOS) with a switch driver, wherein a source of the pMOS is coupled to a second terminal of the inductor, and a drain of the pMOS is coupled to a first terminal of an output capacitor;
• if the input voltage is greater than the output voltage, configuring the hybrid converter as a low drop out linear voltage regulator (LDO) by driving the gate of the pMOS with a buffer;
• controlling the LDO using a voltage loop and a current loop;
• sensing a current through the inductor, wherein the inductor is part of the current loop;
• and
• providing a feedback signal based on the current sensed to a controller of the hybrid converter.

An apparatus, comprising:

• means for receiving an input voltage at a first terminal of an inductor of a hybrid converter;
• means for configuring the hybrid converter as a boost converter if the input voltage is less than an output voltage of the hybrid converter;
• means for configuring the hybrid converter as a low drop out linear voltage regulator (LDO) if the input voltage is greater than the output voltage;
• and
• means for controlling the LDO using a voltage loop and a current loop.