onsemi

NCV1117ST33T3

NCV1117ST33T3 Description

The NCV1117ST33T3 is a fixed output linear regulator designed by onsemi, specifically tailored for automotive applications. This regulator offers a stable 3.3V output voltage with a maximum input voltage of 20V and a continuous output current of 1A. It is housed in a surface-mount SOT223 package, making it suitable for compact and high-density designs. Despite being marked as obsolete, the NCV1117ST33T3 remains a reliable choice for power management in automotive electronics due to its robust performance and compliance with REACH regulations.

NCV1117ST33T3 Features

• Output Type: Fixed at 3.3V, ensuring a stable power supply for sensitive electronic components.
• Input Voltage Range: Capable of handling up to 20V, providing flexibility in various automotive power supply scenarios.
• Output Current: Delivers a consistent 1A, making it suitable for applications requiring moderate to high current.
• Voltage Dropout: A maximum dropout voltage of 1.2V at 800mA ensures efficient operation even under varying load conditions.
• Protection Features: Over-current and over-temperature protection safeguard the regulator and connected circuits from damage.
• Low Quiescent Current: Only 10mA, contributing to energy efficiency and reduced power consumption.
• High PSRR: 64dB at 120Hz, which minimizes noise and ripple in the output voltage, ensuring clean power delivery.
• Moisture Sensitivity Level: MSL 1 (Unlimited), making it suitable for use in various environmental conditions without the need for special handling.
• Automotive Grade: Certified for automotive applications, ensuring reliability and durability in harsh environments.

NCV1117ST33T3 Applications

The NCV1117ST33T3 is ideal for a range of automotive applications where a stable and efficient power supply is crucial. Its fixed 3.3V output makes it suitable for powering microcontrollers, sensors, and other low-voltage electronics. The regulator's ability to handle up to 20V input and provide 1A of output current makes it a versatile choice for both small and medium-sized automotive electronic systems. Specific use cases include:

• Automotive Electronics: Powering ECUs (Electronic Control Units), infotainment systems, and advanced driver-assistance systems (ADAS).
• Industrial Applications: Suitable for industrial control systems and IoT devices requiring a stable power source.
• Consumer Electronics: Ideal for portable devices and gadgets that need a reliable power supply in automotive environments.

Conclusion of NCV1117ST33T3

The NCV1117ST33T3 is a robust and reliable linear regulator designed for automotive applications. Its fixed 3.3V output, combined with a maximum input voltage of 20V and a continuous output current of 1A, makes it an excellent choice for powering sensitive electronic components. The regulator's low dropout voltage, high PSRR, and protection features ensure efficient and stable operation, even under varying load conditions. Despite being marked as obsolete, the NCV1117ST33T3 remains a viable option for engineers looking for a dependable power management solution in automotive and industrial applications.