Flybuck IC

[maormat4]

Hi,
When designing a fly-buck topology, can I use an IC of a buck converter?
I need to design fly-buck of:
15-100V input
two outputs of 5V (1 isolated), 0.2A output current in total
high efficiency at low loads

Do you have a suggestion for an IC?

thank you

 

[stenzer]

Hi,

have a look on the following application note from TI. They are using the LM5017 with an input voltage range from 7.5 V to 100 V. The AN covers the design with one isolated and one nom-isolated output.

https://www.ti.com/lit/pdf/snva674

BR