Step-Up from 12V to 15V using MC34063
Your calculation shows that peak current for inductor is Ipeak=1.492A. That means you need inductor that can withstand 1.5A.
So, inductors rated for 0.8A or 150mA are definitely not suitable. Go for 2A one.

Ipeak must be smaller than Isat (saturation current of inductor).