POWER SUPPLY MODULE

A characteristic configuration of a power supply module according to the present disclosure includes a power supply module (1) mounted on a vehicle, the power supply module (1) including an AC-DC conversion unit (11) that converts one of an AC voltage and a DC voltage into the other and outputs the other, and a voltage conversion unit (20) that converts a first voltage value of an input DC voltage into a DC voltage having a second voltage value, the voltage conversion unit (20) includes a first conversion unit (21) connected to the AC-DC conversion unit (11) and a second conversion unit (23) connected to the first conversion unit (21) via a transformer (22), and the power supply module (1) including a first board (81) on which the AC-DC conversion unit (11) and the first conversion unit (21) are provided, and a second board (82) on which the second conversion unit (23) is provided and that is different from the first board (81).