■ Optimized for input voltage of 110VAC to 550VAC for twowire
inputs and 110VAC to 450VAC for line-to-line voltage
of a 3-phase distribution system
■ AccuSwitchTM technology − integrated 1200V bipolar
junction transistor (BJT)
■ Adaptively controlled soft-start enables fast and
smooth start-up for a wide range of capacitive loads
(from 330μF to 6,000μF) with output voltage of 5V to
12V and above
■ Very tight constant voltage and constant current
regulation over entire operating range
■ PrimAccurate™ primary-side feedback eliminates
optocoupler and simplifies design
■ EZ-EMI TM 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 loop compensation components required
■ Built-in single-point protections against output shortcircuit,
output low impedance, and output overvoltage
■ Built-in over-temperature protection (OTP)
■ No audible noise over entire operating range