WEBENCH® Tools: xx

Hi Mario, 

For this operating condition, I could not fetch the transformer details( core/bobbin ,etc)

We can even go with UCC28C42 which can be operated for higher duty cycles for this low input voltage application, this will give us lesser primary currents. 

UCC28C42 and UCC28C44 differ primarily in max duty cycle operation( 94 percent vs 44 percent respectively). 

I checked the design in WEBENCH using UCC28C42, along with available complete transformer report, attaching it here, 

let me know what you think regarding this

WBDesign16109.pdf

thanks

sahil