● Primary-side feedback eliminates opto-isolators and
simplifies design
● No-load power consumption < 20 mW at 230 Vac with
typical application circuit (5 star rating)
● Active start-up scheme enables fastest possible startup
● Fast dynamic load response
● Adaptive multi-mode PWM/PFM control improves
efficiency
● Quasi-resonant operation for highest overall efficiency
● EZ-EMI® design to easily meet global EMI standards
● Direct drive of low-cost BJT switch
● Dynamic base current control
● Very tight constant voltage and constant current
regulation with primary-side-only feedback
● No external compensation components required
● Complies with EPA 2.0 energy-efficiency specifications
with ample margin
● Ultra-low start-up current (1.5 μA typical)
● Built-in soft start
● Built-in short circuit protection and output overvoltage
protection
● Built-in current sense resistor short circuit protection
● No audible noise over entire operating range