Integrated heterogenous power management circuitries

A system comprising:

• a memory to store instructions;
• a processor to execute the instructions;
• a wireless interface to enable the processor to communicate with another system;
• a first die comprising devices that include compound semiconductor material;
• and
• a second die comprising a plurality of CMOS (Complementary metal-oxide-semiconductor) circuitries,
• wherein a power converter is to supply power to one or more of the memory, the processor, or the wireless interface,
• wherein the first die includes a first section of the power converter, and
• wherein the second die includes a second section of the power converter.

A method of operating a voltage regulator (VR), the method comprising:

• generating, by a driver circuitry included in a first die, a pulse width modulation (PWM) signal;
• and
• switching, by a switch included in a second die, based on the PWM signal,
• where the switching by the switch at least in part generates an output voltage of the VR,
• wherein the switch comprises compound semiconductor material, and
• the driver circuitry is implemented at least in part using one or more CMOS (Complementary metal-oxide-semiconductor) circuitries.