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LP2981: current limit and thermal shutdown

Noriyuki Takahashi
Genius 10140 points
Part Number: LP2981

Hi team

I understand that LP2981 has current limit function and thermal shutdown, but not sure when these would work.

Could you tell the specific value when the current limit & thermal shutdown would operate?

Regards,

Noriyuki Takahashi

  • +1
    TI__Mastermind 45635 points

    Hi Noriyuki,

    The EC table specifies the peak output current (i.e. the current limit) for both the LP2981 and LP2981A devices:

    Thermal shutdown for a part with abs max Tj=150C is typically 150C - 175C. It is not always a precise number (especially with these older devices), but it is guaranteed that the thermal shutdown is above 150C, which is why we say to not exceed 150C. 

    Regards,

    Nick