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LT3748 Flyback controller


I would like to design LT3748 Isolated power solution to our PoE PSE source.

Following is our specification:

Vin: 14V (+-) 10%

Vout: 48V@250mA

There is a reference design on ADI website(see following link), but its transformer size is too big to fit in our design.We don't need such high power output.

Based on our Vin/Vout requirement, could you please suggest a suitable solution to us ? or suggest a transformer to us?