● Primary-side feedback eliminates optoisolators and

simplifies design

● Adaptively controlled soft start enables fast and

smooth start-up for a wide range of capacitive loads

(from 330μF to 6,000μF)

● Active start-up scheme enables shortest possible

turn-on delay

● Direct drive of low-cost BJT switch

● Very tight constant voltage regulation

● EZ-EMI® design enhances manufacturability

● Intrinsically low common mode noise

● Optimized 72kHz maximum PWM switching frequency

achieves best size and efficiency

● Adaptive multi-mode PWM/PFM control improves

efficiency

● Quasi-resonant operation for highest overall

efficiency

● Dynamic base current control

● No external compensation components required

● Complies with EPA 2.0 energy-efficiency

specifications with ample margin

● Built-in short circuit protection and output overvoltage

protection

● Built-in current sense resistor short circuit protection

● Constant current control enables output current limit

and overload protection

● No audible noise over entire operating range