onsemi NCP1055ST100T3

NCP1055ST100T3 - High-Voltage Flyback Switching Controller

The NCP1055ST100T3 from onsemi is a high-performance 40W flyback switching controller designed for isolated AC-DC power conversion applications. Featuring a 700V breakdown voltage and 100kHz switching frequency, this controller delivers reliable performance across industrial, consumer, and telecom power supply designs.

Key Features

• 40W Power Output - Optimized for low-to-medium power AC-DC applications
• 700V High-Voltage Breakdown - Robust design for universal input voltage ranges
• 100kHz Switching Frequency - Enables compact transformer design
• Integrated Protection - Current limiting, overload, over-temperature, and open-loop fault protection
• Wide Operating Range - -40°C to 150°C junction temperature
• SOT-223 Surface Mount Package - Space-saving design for high-density PCB layouts

Applications

• AC-DC adapters and chargers
• Auxiliary power supplies
• Consumer electronics power management
• Industrial control systems
• Telecom and networking equipment

Compliance: RoHS and REACH compliant. Full traceability documentation available. Authorized distributor with manufacturer-backed lifecycle support.

• NCP1055ST100T3.pdf