This flyback reference design uses the cost effective LM5021 AC-DC Current-Mode PWM Controller. Universal line input is converted to a 28-V output. The supply is designed for sustained operation at 75-W and is rated for peaks up to 150-W. This range is ideal for the power requirements of audio signals. It is also tested for conductive EMI compliance.
90-VAC - 265-VAC input to 28-V/5.5-A isolated output
Up to 89% efficiency at full load without the need for a synchronous rectifier
Data provided for conducted emissions tests
PMP21549 Assembly Drawing2.pdf
75-150W Flyback reference design for audio applications.pdf