Hi ,
A customer of mine is trying to check the fasibility of using the LM43603 for the following application :
Vin = 24V
Vo = 5V
Io = 3A
By using the PD calculation formula in page 40 of the D/S of the LM43603 the final PD he receives is about 3.17W on the device a fact that will only allow it to work below 2 Deg C if he wants to keep the TJ below 125 Deg C with 0 LFM.
When comparing the rersults to the WebEnch the losses seems to be much lower (like 2.1W).
What can be the main difference in these calculations ?
Best regards ,
Arik.P.
