TOP223Y

TOP223Y - TOPSwitch-II Offline Switching Regulator IC

The TOP223Y from Power Integrations is a high-performance, integrated offline switching regulator IC from the renowned TOPSwitch-II family. Designed for reliable, cost-effective power conversion in industrial, telecommunications, and consumer applications, this device combines a 700V power MOSFET, PWM control, fault protection, and other control circuitry on a single monolithic chip.

Key Features & Benefits

• 50W Power Handling: Ideal for mid-power AC-DC and DC-DC converter designs
• 700V Breakdown Voltage: Provides robust performance with high voltage margin for universal input applications
• Multiple Topology Support: Supports boost, buck, flyback, and forward converter topologies for design flexibility
• Integrated Protection: Built-in current limiting and over-temperature protection enhance system reliability and reduce external component count
• 100kHz Switching Frequency: Enables compact transformer and filter designs while maintaining high efficiency
• 67% Maximum Duty Cycle: Optimized for efficient energy transfer in isolated power supplies
• Wide Operating Temperature Range: -40°C to 150°C (TJ) ensures reliable operation in harsh environments
• Industry-Standard TO-220-3 Package: Through-hole mounting for easy assembly and excellent thermal performance

Typical Applications

• AC-DC power supplies for industrial equipment
• Offline battery chargers
• Auxiliary power supplies in telecommunications systems
• Consumer electronics adapters and power bricks
• LED driver circuits
• Standby power supplies

Why Choose TOP223Y?

Power Integrations' TOPSwitch-II family is trusted worldwide for delivering high reliability, simplified design, and excellent EMI performance. The TOP223Y reduces component count, board space, and design complexity while providing comprehensive protection features that enhance product safety and longevity. With decades of proven field performance, this IC is an excellent choice for engineers seeking a robust, cost-effective power conversion solution.

All specifications are subject to change. Please refer to the manufacturer's datasheet for the most current information.

• TOP223Y.pdf