Tool/software:
I would like to ask about the LM5156H layout review.
Can I provide you with the allergo brd file for TI review?
Or should I just provide the relevant screenshots?
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Tool/software:
I would like to ask about the LM5156H layout review.
Can I provide you with the allergo brd file for TI review?
Or should I just provide the relevant screenshots?
Hi Nicholas,
Thanks for using the E2E forum.
Can you please attach the schematic and layer by layer images of your design?
Best Regards,
Hassan
Hi Nicholas,
Thanks for using the e2e forum.
Both screenshots and .brd files are fine for us to review.
However, please also attach a schematic and the parameters for VIN range, VOUT and max load conditions.
Otherwise the design is very difficult to review, as we do not know which component is which.
Best regards,
Niklas
Hi Niklas,
The schematic has been confirmed on the TI website. The final design is attached.
Mainly confirmed and replied by Hassan. Links as follows:
Based on my personal experience, I suggest the layout team to do placement and layout.
The main routing is only on the TOP and BOT layers. Even though the board is a 10-layer board.
Any suggestions please make suggestions. Grateful.
The layout of each layer is as follows:
All Layer:
Layer 1:
Layer 2:
Layer 3:
Layer 4:
Layer 5:
Layer 6:
Layer 7:
Layer 8:
Layer 9:
Layer 10(There are text and boxes showing top components.):
Layer 10(only bottom component(C1173):
Hi Nicholas,
The layout seems to be good, the loops are small and also the placement for the passives next to the IC looks good.
Only two things:
- I would recommend to place the smallest output capacitor closest to the output (C1174)
- I recommend to have a seperated "quiet" AGND island for the sensitive parts, like its shown in the datasheet:
Best regards
Moritz