Hi,
I'm planning to use TPS7A92 for my project,
this is my requirement,
Vin=5V
Vout = 3.8V
Iout = 1.6A
Ta= 70C
based on datasheet, i have done some calculations,
part has RθJA = 56.9 °C/W, if we calculate the Pd(max) of this part,
Pd(max) = Tj(max)-Ta)/ RθJA
= (125-70)/56.9
= 0.966W
As per our requirements, Power dissipation will be,
Pd = (Vout-Vin)*Iout
= (5-3.8)*1.6
= 1.92W
is my calculations are proper? With the calculation i have conculded that i cant use this part.
Do you have any suggested part?
Regards,
Hareesh