TPS40193: Power solution suggestion for Xilinx Artix 7 (XC7A200T)

Xiaosen Jiang

Part Number: TPS40193
Other Parts Discussed in Thread: TPS54550, TPS53119, TPS54622, TPSM84824, TPS54824

HI, we are designing a product based on Xilinx Artix 7 (XC7A200T) fpga device and looking for some recommendation on power solution from TI.

Since our design is high performance, the estimated power consumption (from vivado) of the FPGA is around 10W, which means the power supply has to be able to provide 10A output to VCCINT (fpga core voltage). I refer to some old design and the following chipsets were used. I wonder if this is still a viable approach and the most cost effective solution?

Any help and suggestion is appreciated!

Input is 5V from USB or 12V

TPS40193 (20A max) - VCCINT, VCCBRAM 1v0

TPS54550 (6A) - VCCAUX 1v8

TPS54550 (6A) - VCC0 3v3

over 6 years ago

0 Mathew Jacob1 over 6 years ago

TI__Expert 5910 points

Xiaosen,
I think the solution is viable based on what you have listed. For the high current rail, TPS53119 would be a good cost effective alternative.

Regards,
Mathew

0 Xiaosen Jiang over 6 years ago in reply to Mathew Jacob1

Prodigy 110 points

Thanks Mathew for the recommendation.
to simply the design and reduce cost, is there integrated power solution to replace the two TPS54550? we don't draw much power from those two supplies. I did a quick check and the price of the part TPS54550 is also high, is there an alternative if integrated solution is not available?

0 Mathew Jacob1 over 6 years ago in reply to Xiaosen Jiang

TI__Expert 5910 points

Please check this file for some recommendations5A solutions.xls

0 Xiaosen Jiang over 6 years ago in reply to Mathew Jacob1

Prodigy 110 points

this is really helpful! thanks.

0 Anthony F over 6 years ago in reply to Xiaosen Jiang

TI__Mastermind 35135 points

Hi Xiaosen,

The TPS54622 or the newer TPS54824 would be the parts I would suggest to replace the TPS54550. If you prefer a module you could also look at the TPSM84824 that was just released.

Hope this helps.

Anthony

0 Xiaosen Jiang over 6 years ago in reply to Anthony F

Prodigy 110 points

Thank you!

I just found out that on TI webbench you can select the FPGA model name and the power design would be automatically generated for you with parts selection, it even has all schematics and pcb design files generated for you to export..

It is really convenient, especially for me with limited design experience, but i'd like to hear your opinions on it, and if there is something i need to pay extra attention to with those auto thing. Thanks

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TPS40193: Power solution suggestion for Xilinx Artix 7 (XC7A200T)