UCC28881: application question for buck

Robin Liu

Intellectual 1940 points

Part Number: UCC28881
Other Parts Discussed in Thread: PMP21007

Hi all,

My customer ask could we use UCC28881 to do a low power buck - 3W, input: 30V ~ 150V, output: 12V.

His idea is, provide an external power supply to VDD , leave HIVN not use.

or do we have other certain good solution exactly to do this? Need you guide. Thank you.

over 7 years ago

0 Kuan Wei Chen (Kevin Chen) over 7 years ago

TI__Genius 9710 points

Dear Robin,

Yes, the UCC28881 will suitable for your design, which is for low power application.

I will suggest to connect HVIN pin to your input voltage.

I also find a reference design for you.

If you have any problems, please feel free to let me know.

PMP21007A(001)_Sch.pdf

Best Regards

Kevin

0 Robin Liu over 7 years ago in reply to Kuan Wei Chen (Kevin Chen)

TI__Intellectual 1940 points

Hi Kuan wei,

Thanks for your guide,

I notice you reference design link is the schemetic document. But I can't find the PMP21007 info or Onepage, could you provide the design specification information and performance test report for this design？

Regards

Robin Liu

0 Kuan Wei Chen (Kevin Chen) over 7 years ago in reply to Robin Liu

TI__Genius 9710 points

Dear Robin,

Here is the information you want.

I can only find this test report in our internal database.

PMP21007REVA _Test Results.doc

Best Regards

Kevin

0 Robin Liu over 7 years ago in reply to Kuan Wei Chen (Kevin Chen)

TI__Intellectual 1940 points

Hi Kevin,

Thank you!

Closing this post...

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UCC28881: application question for buck