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WEBENCH® Tools/LMR16030: Not working above 16.5V input supply.

Animesh Sachan
Prodigy 10 points
Part Number: LMR16030

Tool/software: WEBENCH® Design Tools

I have used LMR16030 for the power supply for my GPS/GSM device. I used all the components with the same values which are suggested in the WEBENCH design tool and simulation. But in real PCB, the power supply is not working above 16.5V. My device takes 9 to 36V as input supply from a DC source and it is giving 4.2V at the output.

  • 0
    TI__Expert 4555 points

    Hello Animesh,

    Please share the waveform of VIN, VOUT, SW and Inductor Current when the part was is working fine (i.e. below 16.5 V) and when part is not working fine (i.e. after 16.5V). Are you using TI EVM or custom EVM? If you are using custom EVM, then can you please share your schematic and layout both. And can you please try your experiment on TI EVM as well.

    Sorry for asking so many questions, but it will greatly help in debugging the issue. Thanks!

    Best Regards,

    Ankit Gupta

    Application Engineer

  • 0 in reply to Ankit Gupta95
    TI__Expert 4555 points

    Hello Animesh,

    It is been a while we have not heard back from you, I will close thread assuming issue has been resolved. If you still have issues feel free to reopen the thread.

    Best Regards,

    Ankit Gupta

    Application Engineer