Hi experts,
Please kindly help to review this 12Vin,0.85Vout 25A design from my customer. they referred to WEBENCH, but this is their first time to use TPS548B22, please give your suggestion if something missed. thanks.
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Hi experts,
Please kindly help to review this 12Vin,0.85Vout 25A design from my customer. they referred to WEBENCH, but this is their first time to use TPS548B22, please give your suggestion if something missed. thanks.
Hi Yue,
I am attaching a checklist that has the important checks that we would prefer to do on the schematic. Please use this.
Regards,
Gerold
what a long list! I've already got the complain from my customer when I pushed them to fill out this list. Why WEBENCH could not cover most of these check items? Is there an experienced AE could help a quick review?
Hi Gerold,
I've finally got them fill this checklist. please kindly give your further comments. thanks.
Hi Yue,
Thanks for having this filled out. The checklist even though it is long - covers most of the common mistakes that could be made.
I took a look at the checklist and looks like most of them have been incorporated. The only main thing that I found missing is the use of separate ground symbols in the schematic for AGND, DRGND, PGND etc. These grounds should be connected together using a net tie in the schematic.
This is critical because other wise you could be connecting the resistor of the analog components such as ILIM ( as an example) to PGND instead of AGND.
Can you please bring this to your customer's attention?
Please post an updated schematic and I can take a quick look again.
regards,
Gerold