Hello Larry, Thanks for reaching out to us via e2e.
There are three reference designs on our website which are utilizing the LM5122 for an isolated or non-isolated flyback design:
www.ti.com/.../PMP7992 www.ti.com/.../PMP9256 www.ti.com/.../PMP10506
You…
Hi
It is too small. Within one switching period, the current will be increased up to 56A and saturated. The switches can be damaged if your magnetic is saturated. P lease refer http://www.ti.com/tool/ pmp7992
Regards,