PMP9213.2, 85VAC to 265VAC Input, 4W Dual Output 12V and 3.3V Flyback

PMP9213.2, 4W reference design generates both a 3.3V and 12V output. The 3.3V output is regulated, while the 12V output has some load dependent variation. The UCC28740 flyback controller provides a low cost yet efficient solution