Please rate the layout of the regulator board LM2596

Thread Starter


Joined Mar 11, 2019

I am designing a 12V / 5V 3A buck converter board based on LM2596-ADJ.

To cool the LM2596, I added via holes connected to the ground.

During a DRC test, an Overlap error is generated on these holes, although they are connected to the ground, just like the substrate. Will it cause production problems?

To improve ground contact, I added vias.

There is also an idea to add cooling through holes for the diode, but there is not much space between the contacts.

I ask you to evaluate the wiring of the board, to indicate possible weak points.
If necessary, Gerber files in the attachment.

Thank you!