TPS56628: Schematic and layout review request

Hi MJ,

I will review it and feedback you by 12/2/2022.

Hi MJ,

About the schematic,

1. Suggest to install the small cap (C4383) as close as possible to VIN-pin.

2. The picture is not very clear. Did you open the shunt R9103? What's the connection of FB resistors? Seems you added an external Vout adjustment circuit. Let me know what's your planned FB connection, I will check again.

The layout is overall good.

Hi Miranda Gu

1. C4383 will be used by placing it as close to the VIN-pin as possible.

2. R9103 (OPEN-SHUNT1005) is a component with both ends connected to each other. A place is reserved on the PCB for phase margin measurement.

Thanks & Regards

YS, Lee.

Hi Miranda Gu

I'll share the circuit road again.

VIN's small cap is C4363, not C4383.

C4363 will be used by placing it as close to the VIN-pin as possible.

Thanks.

YS, LEE.

Hi, Miranda

The circuit diagram and FB Application block are not clearly visible, so they are attached again.

HR54R1-500_REV2P2_TI_REVIEW_20221205.pdf

Additionally, please reply with comments on the review of the circuit diagram and lay-out.

Thanks.

Regards,

MJ

Hi Lee,

Oh, I forgot to add C4211, thanks for pointing out. I don't have other comments.