TPS25833-Q1: The schematic and layout reference files for TPS25833QWRHBRQ1 are not matched regarding the connection of both AGND and PGND signals

Hi technical support member,

I have a technical issue regarding your layout reference PMP40542 Rev E for your TPS25833QWRHBRQ1 (15W Automotive USB charger controller).

The question is that there is a discrepancy between your schematic design and your layout reference file.

In your design schematic you used net tie to separate and interconnect AGND and PGND together.

However, in your layout reference file (PMP40502PCB file), it seemed that you only use PGND for the whole layout. I can't find AGND in the reference layout file.

Can you please let me know 

1. Why your design schematic and layout Rev E1 files are not matched regarding the PGND and AGND signals connection?

2. Which files is correct and up to date? Is the schematic file correct or the layout file, correct? Why there is no net tie found in the reference layout file?

3. If the layout file is correct, did you mean that PGND and AGND is not necessary to be separated? I can only use PGND for AGND, right? May I know the reason behind?

Please confirm that PGND and AGND had not been connected (which was not matched to the its schematic design file) in PCB layout reference file PMP40502_PCB is correct.

If not so, please let me know the correct way to handle PGND and AGND in your PCB reference file.

Thanks,

Edward