• State
  • Locked Locked
  • Replies 2 replies
  • Subscribers 23 subscribers
  • Views 383 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

How I can calculate regulator heating depends on I out .

ethem kesim
Prodigy 90 points

I have decided to use regulator that is TPS73733-Q1 for my TIVA microcontrollers. How I can calculate regulator heat depends on I out ?  Which currents and heats are  danger for my device. I don't want to  use heatsink for device.  My I out range is 200mA - 500mA.

  • 0
    TI__Guru 60112 points
    Ethem,

    The appropriate applications engineer has been notified of your inquiry and will respond accordingly.

    Regards,
    Eric Hackett
  • 0
    TI__Expert 5675 points
    Hi Ethem,

    Can you please inform me the input voltage range and the ambient temperature of your working condition?

    Usually we can estimate the device junction temperature with the equation: Tj = Ta + thetaJA*PD.
    Where,
    PD = (VIN-VOUT)*IOUT
    Ta= ambient air temperature
    Thermal resistance thetaJA was provide in page 2, Dissipation Ratings.

    Best regards,
    Jason Liu