onsemi

NCP1117DT12

NCP1117DT12 Description

The NCP1117DT12 is a fixed-output linear regulator designed for a wide range of power management applications. Manufactured by onsemi, this IC offers a robust and reliable solution for providing a stable 12V output at a maximum current of 1A. The device is housed in a DPAK package, which is suitable for surface-mount applications, ensuring efficient heat dissipation and compact design integration.

Key technical specifications include a maximum input voltage of 20V, a dropout voltage of 1.2V at 800mA, and a quiescent current of 10mA. The regulator operates within a temperature range of 0°C to 125°C, making it suitable for various industrial and consumer electronics environments. Additionally, the NCP1117DT12 features over-current and over-temperature protection, ensuring safe operation under varying load conditions.

NCP1117DT12 Features

• Fixed Output Voltage: The NCP1117DT12 provides a stable 12V output, ensuring consistent power delivery to connected devices.
• High Current Capability: With a maximum output current of 1A, this regulator can efficiently power demanding applications.
• Low Dropout Voltage: The maximum dropout voltage of 1.2V at 800mA allows for efficient operation even with minimal input-to-output voltage differences.
• Over-Current and Over-Temperature Protection: These protection features safeguard the regulator and connected circuits from damage due to excessive current or temperature.
• Wide Operating Temperature Range: The device operates reliably from 0°C to 125°C, making it suitable for diverse environmental conditions.
• Surface-Mount DPAK Package: The compact and efficient DPAK package is ideal for surface-mount applications, facilitating easy integration into modern PCB designs.
• High PSRR: With a power supply rejection ratio of 54dB at 120Hz, the NCP1117DT12 effectively minimizes noise and ripple in the output voltage.

NCP1117DT12 Applications

The NCP1117DT12 is ideal for a variety of applications where a stable 12V power supply is required. Some specific use cases include:

• Consumer Electronics: Powering devices such as smartphones, tablets, and other portable electronics that require a stable 12V supply.
• Industrial Equipment: Providing reliable power to sensors, actuators, and other components in industrial control systems.
• Automotive Applications: Suitable for powering various electronic modules in automotive systems, given its wide operating temperature range and robust design.
• Telecommunications: Used in base stations and other communication equipment where a stable and efficient power supply is crucial.
• Medical Devices: Ensuring reliable power delivery to medical equipment that requires precise voltage regulation.

Conclusion of NCP1117DT12

The NCP1117DT12 is a versatile and reliable linear regulator that offers a stable 12V output with a maximum current of 1A. Its low dropout voltage, wide operating temperature range, and protection features make it an excellent choice for a variety of applications. Despite being marked as obsolete, the NCP1117DT12 remains a valuable component for designers seeking a robust and efficient power management solution. Its surface-mount DPAK package and high PSRR further enhance its appeal, making it a preferred choice for applications where space and performance are critical.