Hi,
I was just wondering if you could confirm some details which are not included in SNVA755. It regards the EMI performance improvements of the LMR16010 with an improved layout.
1. Two layers are shown in Figure 9. I assume this is a four layer board, how should the other two layers look? E.g. follow the middle layer?
2. Is the blue layer on the two diagrams in Figure 9 the bottom or inner layer which feeds in the ground and the input through the EMI filter?
3. Are the small grey holes showing vias around the outside of the layout? What do these do to improve EMI performance?
Thanks,
Ric