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Require switcher for flyback converter to develop auxiliary supply

Hello Everyone

My application is solar microinverter. I want to use solar PV voltage as input voltage for auxiliary supply 

I am using flyback converter.For that purpose i require switcher of 2A and vin 1 to 40 V range.

Auxiliary supply o/p volatge are 3.3 V,5 V,15V

If  anybody knows switcher above rating please help.

Thank you