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  • TI Thinks Resolved

WEBENCH® Tools/LMR33620: Design update failed. Failed Minimum Toff

Expert 1110 points

Replies: 6

Views: 58

Part Number: LMR33620

Tool/software: WEBENCH® Design Tools

Dear Sir,

I am making a power supply design for 24v to 12v @2 amps. and I choose lmr33620 for the design. But when I do required changes at 12v the software comes up with the error i.eDesign update failed. Failed Minimum Toff.

Can you please help me to resolve this error.

  • Dear Sir,

    If you can suggest something better apart from this part that would be great.

    I need 24 to 12v

    2 amps.

    The major thing is we need a minimum number of components for the design.

    Please suggest the best of it.

  • In reply to divyanshu bawa:

    Dear Divyanshu,

    I was able to create design for 24V 12V 2A using LMR33620. Here is the design:

    https://webench.ti.com/appinfo/webench/scripts/SDP.cgi?ID=E4BED8A8C9C49013

    I'm not sure what you've changed to get that error. Please share you design, if you're still facing the issue.

    Please use Webench designer home page or click on new design. input you Vin, Vout and Iout requirements. under design considerations you can choose low cost or small foot print options according to your need. Once designs get created you can see BOM count, total foot print and cost below each design.

    Regards,

    Vishwanath

  • In reply to Vishwanath Tigadi:

    Dear Sir,

    I was looking for this in 8-Pin HSOIC package. and input capacitors are the way to muc.can I get min components buck.

    if you will suggest some other buck with less components that would be great.

  • In reply to divyanshu bawa:

    Dear Divanshu,

    once you create design from the new design tab, you have option to limit BOM count on the left hand side filters. Also, you can sort by lowest bom count on the right top. make sure to test your designs before proceeding. Please try it and let me know if you need any further help.

    Regards,

    Vishwanath

  • In reply to Vishwanath Tigadi:

    Dear Divanshu,

    I hope you were able to find a suitable design for your inputs with the instructions above. I'll be closing this thread for now. 

    Regards,

    Vishwanath

  • In reply to Vishwanath Tigadi:

    Dear Sir,

    Yes,Thanks

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