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LM25149: Negative current limit

Shaury Anand
Intellectual 1740 points
Part Number: LM25149

Hi team,

Is there a negative current limit threshold in LM25149? It seems like there isn't any negative current limit. Would it be a problem if I sink current at the output? Input voltage to buck converter can sink the current.

Regards,

Shaury

  • +1
    TI__Mastermind 22299 points

    Hi Shaury,

    There is no negative current limit. Note the negative current will sink to GND through the lowside FET if the VOUT is over-voltage.

    The input will only sink the current if the input voltage falls below the output voltage. This will be conducted through the highside FET.

    -Orlando