onsemi

NCP1117ST12T3

NCP1117ST12T3 Description

The NCP1117ST12T3 is a linear voltage regulator designed for applications requiring a fixed 12V output voltage with a maximum output current of 1A. Manufactured by onsemi, this regulator is part of the Power Management (PMIC) category and is housed in a Surface Mount SOT223 package. Despite being marked as obsolete, the NCP1117ST12T3 remains a reliable choice for various electronic systems due to its robust performance and wide operating temperature range of 0°C to 125°C.

NCP1117ST12T3 Features

• Output Type: Fixed 12V output voltage ensures stable power supply for sensitive electronic components.
• Input Voltage Range: Capable of handling input voltages up to 20V, providing flexibility in power source selection.
• Output Current: Delivers a consistent 1A output current, suitable for a variety of low to medium power applications.
• Low Dropout Voltage: With a maximum dropout voltage of 1.2V at 800mA, the NCP1117ST12T3 maintains efficiency even under varying load conditions.
• Protection Features: Equipped with over-current and over-temperature protection, ensuring safe operation and prolonged component life.
• Low Quiescent Current: Consumes only 10mA in quiescent state, minimizing power loss and enhancing overall system efficiency.
• High Power Supply Rejection Ratio (PSRR): Achieves 54dB at 120Hz, effectively filtering out noise from the power supply and maintaining clean output voltage.
• Moisture Sensitivity Level: MSL 1 (Unlimited) makes it suitable for a wide range of manufacturing environments without the need for special handling.
• Mounting Type: Surface Mount design allows for compact and efficient PCB layouts, ideal for space-constrained applications.
• Package: Tape & Reel (TR) packaging ensures easy handling and integration into automated assembly processes.

NCP1117ST12T3 Applications

The NCP1117ST12T3 is well-suited for a variety of applications where a reliable and stable 12V power supply is required. Its features make it an ideal choice for:

• Consumer Electronics: Powering devices such as portable audio equipment, gaming consoles, and home appliances.
• Industrial Equipment: Providing stable power to control systems, sensors, and actuators in harsh industrial environments.
• Telecommunications: Ensuring reliable power supply for base stations, routers, and other communication infrastructure.
• Automotive Electronics: Suitable for in-vehicle systems, such as infotainment units and electronic control units, due to its wide operating temperature range and robust protection features.
• Medical Devices: Ideal for powering medical monitoring equipment and diagnostic tools that require stable and reliable power sources.

Conclusion of NCP1117ST12T3

Despite its obsolete status, the NCP1117ST12T3 remains a valuable component in the power management landscape. Its combination of a fixed 12V output, low dropout voltage, and robust protection features make it a reliable choice for a wide range of applications. The low quiescent current and high PSRR further enhance its performance, ensuring clean and efficient power delivery. While newer alternatives may exist, the NCP1117ST12T3 continues to offer a proven and cost-effective solution for designers and engineers seeking a dependable linear voltage regulator.