• Product Brief
• Application Note
• Datasheet
• Order Samples

Features

• Primary-side feedback eliminates opto-isolators and simplifies design
• No-load power consumption <20mW at 230Vac with typical circuit (5 star rating)
• Active start-up scheme enables fastest possible start-up
• Fast dynamic load response
• Adaptive multi-mode PWM/PFM control improves efficiency
• Quasi-resonant operation for highest overall efficiency & low EMI
• EZ-EMI ® design to easily meet global EMI standards
• Direct drive of low-cost BJT switch
• Very tight constant voltage and constant current regulation with primary-side 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 short circuit protection and output overvoltage protection
• Built-in current sense resistor short circuit protection
• No audible noise over entire operating range
• Space-saving SOT-23 package

Application

• 5-Star cell phone chargers and adapters
• Linear AC/DC replacement