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LMZ31704 Layout AGND & PGND connection

Other Parts Discussed in Thread: LMZ31704

Hello everybody,

Could someone tell me how do I connect AGND to PGND on the layout of the LMZ31704 ? Because on the Webench design they are connected together (to the GND) and in the datasheet it is said "Keep AGND and PGND separate from one another". Do I have to connect them in an internal layer and make separate plane on my top layer (if LMZ31704 is on the top layer) ?