Reducing electromagnetic interference in switching regulators

A System on a Chip (SOC) comprising:

• a storage to store instructions;
• a processor coupled to the storage, the processor to execute the instructions;
• and
• a voltage regulator to supply an output voltage to one or both the processor or the storage, the voltage regulator comprising:
• a power stage comprising two or more switches,
• first one or more circuitries to randomly vary an upper trigger point (UTP) value and to randomly vary a lower trigger point (LTP) value, and
• second one or more circuitries to control switching of the two or more switches, based at least in part on the UTP value and the LTP value.

A voltage regulator comprising:

• a first transistor coupled between a supply rail and a node;
• a second transistor coupled between the node and a ground terminal;
• an inductor coupled between the node and an output terminal;
• a capacitor coupled between the output terminal and the ground terminal;
• and
• a circuitry to switch off the first transistor, in response to a current through the inductor reaching or exceeding a randomly or pseudo-randomly varying threshold.