Electronic device and method of suppressing signal noise generated by buck-boost circuit

An electronic device, configured for a buck-boost circuit to be disposed thereon, and the electronic device comprising:

• a chassis;
• a circuit board, disposed in the chassis and configured for the buck-boost circuit to be disposed thereon, wherein the circuit board has a power circuit structure, and the power circuit structure has a plurality of power conductive vias;
• and
• a plurality of noise suppression capacitors, disposed on at least one side of the power circuit structure, wherein the power circuit structure provides at least a part of the plurality of noise suppression capacitors located adjacent to the plurality of power conductive vias, respectively, and provides at least a part of the plurality of noise suppression capacitors located away from the plurality of power conductive vias, and a distance between any adjacent two of the plurality of noise suppression capacitors located away from the plurality of power conductive vias is configured to be less than or equal to one-eighth of a wavelength of a signal noise generated by the buck-boost circuit.