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LTpowerCAD LTC3895 problem

Hi AD,

I'm tring to simulate LTC3895 buck controller. 

My specs: 80V input

Fsw: 150kHz,

Vout=41.68V

Iout=15A

Ta=25C

Control Mosfet : BSC093N15S5 ( x4)

Sync Mosfet : BSC093N15S5 ( x2)

Output Cap :1mF-150mR Cap ( x4)

My question is when I put the 4.4uH inductor, It shows the Ploss for control mosfet is 0.529Watt but When I put the 4.5uH inductor, It shows the Ploss for control mosfet 1.221Watt.  Note that; I just changed the inductor value. 

Why is it happening ? are there any logical explanation ?

By the way, I know the ripple current for inductor is too much. I just want to ask the problem. 

for 4.4uH results;

for 4.5uH results;

Thanks

Best Regards,

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