In traditional layout principle ,we should do like this:
But in switching power IC , the AE always suggests us to connect PGND and AGND in one single point under the part, if we do this ,the circuit is like this:
why do not we use the first way in switching power IC? Any one know the root reasons? Thanks!
Your second picture is not visible. Please try pasting it again.
second picture is below ,thanks
In reply to liang liu:
This is totally new to me. Who recommends this method?
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