I'm studying for the best practice to route a switching dc to dc step down regulator. Particularly this TI part.
On page 37 there's a layout example. I was wonder if it could be any problem to place vias in the whole Vout line and not only after the output capacitors.
I upload a photo.
Due to limited space I've placed the output circuitry both in top and bottom sides of pcb. I hope this won't hurt stability or something.
First, I placed the vias only in the points are necessary. After the inductor to transfer the power at the bottom layer and after the output capacitors to transfer the power at the inner layer.
But, I do not know if the extra vias (these I marked with golden color) in the output line are prefered.
Also, Is there any harm to connect the inner layer (which delivers the 5V output) to the vias at the inductor-capacitors point?
I added one more picture to be more clear of my two considerations. Red dots are vias
EDIT: I upload one more photo of my final draft layout. The part I'm still confused is the via placement. I don't know if the output line 5V must have vias in the whole plane like I did or must be placed only after the output capacitors (see photo 2, A and B).