onsemi NCP1014ST65T3

NCP1014ST65T3 Flyback Switching Regulator IC

The NCP1014ST65T3 from onsemi is a high-performance isolated flyback switching regulator designed for AC/DC offline power conversion applications. This integrated controller features an internal 700V MOSFET switch, making it ideal for compact, cost-effective power supply designs up to 19W.

Key Features

• Integrated 700V MOSFET - High breakdown voltage for universal AC input applications
• 65kHz Fixed Frequency - Optimized switching frequency for balanced efficiency and EMI performance
• 19W Power Output - Suitable for low to medium power applications including adapters, chargers, and auxiliary supplies
• Comprehensive Protection - Built-in overload, over-temperature, and over-voltage protection for enhanced reliability
• Wide Operating Range - Functions from -40°C to 150°C junction temperature for demanding environments
• Compact SOT-223 Package - Space-saving surface mount design for high-density PCB layouts

Applications

• AC/DC power adapters and chargers
• Auxiliary power supplies for industrial equipment
• Standby power for consumer electronics
• LED driver circuits
• Smart home and IoT device power supplies

Technical Advantages

The NCP1014ST65T3 simplifies power supply design by integrating the high-voltage switch, control logic, and protection features into a single compact package. The 67% maximum duty cycle and 65kHz fixed frequency operation provide excellent efficiency while minimizing external component count. The device operates from an 8.5V to 10V supply voltage and includes sophisticated fault protection to ensure safe, reliable operation across all conditions.

• NCP1014ST65T3.pdf