Low thermal design for DC-DC converter

A method, comprising:

• coupling a first and second switching circuits in parallel between an input terminal and ground, and between the input terminal and an output terminal;
• coupling a controller to each of the first and second switching circuits individually;
• generating, using the controller, first and second control signals;
• coupling the first and second control signals to the first and second switching circuits respectively;
• and
• controlling, using the first and second control signals respectively, the first and second switching circuits, wherein the first switching circuit is turned on first in a first cycle, and the second switching circuit is turned on first in a second cycle, and wherein the first and second cycles are alternating.

An automotive power supply system, comprising:

• a power supply;
• a plurality of voltage converters, each including an input terminal receiving voltage input from the power supply, first and second switching circuits connected in parallel between the input terminal and a ground node, an output terminal outputting converted voltage, and a controller configured to operate the first and second switching circuits in first and second time cycles by inputting, into each of the first and second switching circuits, a control signal that turns the first and second switching circuits on individually, wherein during the first time cycle, the first switch circuit is turned on first, and during the second time cycle, the second switch circuit is turned on first;
• and
• a plurality of automotive control circuits, each configured to receive the converted voltage from at least one of the output terminals of the plurality of voltage converters.