Choice of isolated DC/DC for usb power

frederic douit

Other Parts Discussed in Thread: TPS55010, DCR010503

Hello,

I designed a powered usb audio device and encountered noise issues.

I decided to use an isolated DC/DC to avoid noise.

But I can't find a simple part for that purpose. I only found complex part like DCR010503 or this one tps55010 which needs other part (transformer from WURTH : 750311780).

I found this from an other manufacturer and would like the same from TI : (I don't know if It's allowed to post it)

Is there an equivalent from TI?

Thank you

over 8 years ago

0 Billy Long over 8 years ago

TI__Expert 4015 points

Hi Frederic, I don't know what your input and output spec are but something like the DCH010515 may work.
www.ti.com/.../dch010515d.pdf

TI is an IC supplier rather than a converter supplier but does produce some isolated DC/DC modules.
They can be found at this URL www.ti.com/.../isolated-module-products.page

Hopefully one of them will match your requirements.
Thanks
Billy

0 frederic douit over 8 years ago in reply to Billy Long

Intellectual 480 points

Hi Billy,

Thank you for your answer.

I have usb from computer in input, and I need between 3.3v and 5v in output with 100 mA max I guess.

Yes I already saw the DCH010515 before. It looks good but it's a bit big and not easy to mount on pcb.

I'm looking for the same but in a smt package.

Is there something like that?

Thank you

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Choice of isolated DC/DC for usb power