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  • TI Thinks Resolved

LM22675: About Line reguration question of LM22675.

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Replies: 2

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Part Number: LM22675

Dear support member,

My customer use LM22675.

I have a question about line reguration.


Daimen is a 3 phase power supply,
The input voltage fluctuates at intervals of 8 ms at 0.1 V.
The output voltage fluctuated at intervals of 8 ms at 50 mV.

Is this normal behavior of IC?
If it is not normal operation,would you teach me the reason?

Specification condition
Vin: 27 V
Vout: 5 V
Iout: 1A


Best regard.
Bob Lee

  • Hi Bob,

    I think we do not have a control on the input, as for the output voltage it seems sound reasonable.
    Do you have a scope capture of the output voltage ripple?

    Thanks
    -Arief
  • In reply to Arief Hernadi:

    Dear Arief Hernadi,


    Thank you very much for reply.

    I check if there is a waveforme.
    I will feedback it.

    Best regard.
    Bob Lee.

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