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LP38693: Maximum Case Temperature (Tcmax)

Part Number: LP38693

Hi E2E,

Good day.

Our customer is looking for the Maximum Case Temperature (Tcmax) of LP38693MP-5.0/NOPB. This information is not in the datasheet, is there a way to compute this parameter?

Thank you in advance for your help.

Regards,
Carlo

  • Hello Carlo:

     Here is one way to calculate the maximum case temperature, Tcase(max) = Tjunction(max)- RθJC(top)*Pdissipation. where Pdissipation = (Vin-Vout)*Iout. 

     Based on the information in the datasheet, Tjunction(max) =160, RθJC(top) = 52.2°C/W. Your customer uses LP38693MP-5.0/NOPB, Vout is equal to 5V.  You will need to know what the input voltage and load are to trigger thermal shutdown from your customer to compute the maximum case temperature. 

    Regards,

    Min