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LM25085 application question?

Chen Bogey8
Mastermind 9990 points
Other Parts Discussed in Thread: LM25085

Dear Sir 

I have down load LM25085 CAL excel file. but from this excel file, the inductor can be change in excel file.

But from DS, the L1 should be decide by Vin&Vout. we don't know why we can change the inductor value in cal excel??

                                                                Best regards,

                                                                            Bogey

  • 0
    TI__Genius 11490 points
    Hi Bogey,
    The L1 is calculated by the excel sheet based on operating parameter inputs such as VIN, VOUT, Switching Frequency, Load current.
    In some cases, the user may have a preference for lower size or lower ripple. The input field for L1 is for the user to tweak this calculation. Normally the user should select L1 close to the calculated value.