POL integrated power supply module and production process for improving reliability

A POL integrated power supply module is characterized by comprising an inductor assembly, a substrate, a switch unit and an input capacitor;

• the substrate comprises a first surface and a second surface which are opposite to each other, the inductor assembly is arranged on the second surface of the substrate, and the switch unit and the input capacitor are arranged on the first surface of the substrate;
• the inductor assembly comprises a first surface and a second surface which are opposite to each other, a magnetic core, a winding and a power connecting piece, and the power connecting piece comprises two VIN power connecting pieces and two GND power connecting pieces;
• the winding, the two VIN power connecting pieces, the two GND power connecting pieces and a magnetic material are integrally formed through pressing to form a magnetic core and the inductor assembly;
• each power connecting piece comprises a first end surface and a second end surface;
• the winding comprises a first end, a second end, a winding main body, a first end surface and a second end surface;
• the winding main body extends from the first end to the second end of the winding in a direction of the first surface of the inductor assembly, the first end surface of each winding is exposed out of the first surface of the inductor assembly, and the second end surface of each winding is exposed out of the second surface of the inductor assembly;
• the two GND power connecting pieces are arranged adjacent to the first end of the winding and are respectively arranged on two opposite sides of the first end of the winding;
• and the two VIN power connecting pieces are arranged on the two opposite sides of the first end of the winding, respectively, and are arranged adjacent to the corresponding GND power connecting pieces respectively.