ON Semiconductor NCP1011ST130T3 - Self-Supplied Monolithic Switcher for Low Standby-Power Offline SMPS

The NCP1011ST130T3 is a highly integrated power-switching regulator from ON Semiconductor that offers a compact and efficient solution for low-power standby and auxiliary power supplies. This device is part of the NCP101x series, designed to minimize the number of external components, thus simplifying the power supply design and reducing the overall bill of materials.

One of the key features of the NCP1011ST130T3 is its self-supplied nature, which eliminates the need for an auxiliary winding or external bias, further reducing the complexity and cost of the power supply design. It integrates a fixed-frequency current-mode controller with a 700V MOSFET, enabling it to handle input voltages up to 265VAC with ease.

The device comes in a compact SOT-223 package, making it suitable for space-constrained applications. Its built-in Brown-Out feature ensures stable operation during low input voltage conditions, while the Auto-Recovery Overvoltage and Overcurrent Protections safeguard the device and the system it powers against various fault conditions.

With an internal frequency jittering function, the NCP1011ST130T3 reduces Electromagnetic Interference (EMI), which is crucial for applications that must comply with stringent EMI regulations. This feature, along with its high level of integration, makes the NCP1011ST130T3 an excellent choice for a wide range of applications, including:

• Standby and auxiliary power supplies
• AC-DC adapters for consumer electronics
• Under-voltage lockout (UVLO)
• Power supplies for appliances and smart meters
• LED lighting drivers

The device's Short-Circuit Protection (SCP) with skip cycle provides an additional layer of security by preventing excessive power dissipation during overload or short-circuit conditions. This feature helps to extend the life of the power supply and the end product. Additionally, the NCP1011ST130T3 offers a low standby power consumption, making it ideal for applications that require compliance with energy-saving regulations.

In summary, the NCP1011ST130T3 from ON Semiconductor is a versatile and reliable switcher that provides an all-in-one solution for efficient power management in a variety of low-power applications.