| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply circuit and power supply module in which high frequency noise of broadband frequency is removed with a compact size.SOLUTION: A multilayer printed board 5 has a plurality of wiring layers. A ground 4 has a strip region 41, and is placed in the multilayer printed board 5 or on the surface thereof. A plate-like power supply line 1 has a length in the second direction orthogonal to the first direction of current flow that is longer than the width of the strip region 41 and placed on any of the wiring layers. A land pattern 2 is a plate-like conductor and placed on a wiring layer closer to the ground 4 side than a wiring layer on which the power supply line 1 is placed, in parallel with the surface of the power supply line 1. A via 3 is a conductor for connecting the land pattern 2 and the strip region 41 of the ground 4. |
