The NCP1050ST100T3G is a high-performance, monolithic, low-power switching regulator designed by ON Semiconductor. It is specifically engineered to deliver a cost-effective solution for offline switch mode power supplies. This device integrates a fixed-frequency current mode controller with a 700 V MOSFET, offering a compact and efficient power conversion solution for a wide range of applications.

Key Features

• Integrated 700 V MOSFET: The inclusion of a high-voltage MOSFET allows the NCP1050ST100T3G to handle input voltages up to 700 V, making it suitable for AC-DC conversion in a variety of challenging environments.
• Fixed-Frequency Operation: This device operates at a fixed frequency, which simplifies the design of the magnetic components and helps in reducing electromagnetic interference (EMI).
• Current Mode Control: The current mode control provides fast transient response and excellent loop stability.
• Self-Supply Capability: The NCP1050ST100T3G is capable of self-supplying from the high voltage rail, eliminating the need for an auxiliary winding or external bias supply.
• Protection Features: It includes a range of built-in protection features such as over-temperature protection, under-voltage lockout (UVLO), and over-current protection, enhancing the reliability and safety of the end application.

Applications

The NCP1050ST100T3G is suitable for a broad spectrum of applications, including but not limited to:

• AC-DC adapters
• Standby and auxiliary power supplies
• LED lighting
• Industrial power supplies
• Consumer electronics

Package and Availability

Packaged in a SOT-223, the NCP1050ST100T3G is designed for surface-mount technology (SMT), enabling easier integration into a variety of circuit designs. ON Semiconductor ensures availability and support for this product, catering to both high-volume demands and specialized needs.

With its robust design, integrated features, and ON Semiconductor's commitment to quality, the NCP1050ST100T3G stands out as a reliable and efficient solution for power supply design.