onsemi

NCP1117ST15T3

NCP1117ST15T3 Description

The NCP1117ST15T3 is a linear voltage regulator from onsemi, designed to provide a stable and reliable power supply for a variety of electronic applications. This regulator features a fixed output voltage of 1.5V and is capable of delivering a continuous output current of 1A. It is designed to operate with an input voltage range up to 20V, making it suitable for a wide range of power supply configurations. The regulator is housed in a Surface Mount SOT223 package, which is ideal for compact and space-constrained designs.

The NCP1117ST15T3 offers a dropout voltage of 1.2V at 800mA, ensuring efficient operation even at higher load currents. It also features a quiescent current of 10mA, which helps in minimizing power consumption during standby conditions. The regulator is equipped with over-current and over-temperature protection features, enhancing its reliability and longevity in demanding operating environments. The operating temperature range of 0°C to 125°C makes it suitable for both commercial and industrial applications.

NCP1117ST15T3 Features

• Output Type: Fixed 1.5V output voltage, ensuring stable power supply to connected devices.
• Input Voltage Range: Capable of handling input voltages up to 20V, providing flexibility in power source selection.
• Output Current: Delivers a continuous output current of 1A, suitable for powering a variety of electronic components and systems.
• Dropout Voltage: Low dropout voltage of 1.2V at 800mA, enhancing efficiency and performance under high load conditions.
• Protection Features: Equipped with over-current and over-temperature protection, ensuring robustness and reliability in operation.
• Operating Temperature: Wide operating temperature range of 0°C to 125°C, suitable for both commercial and industrial applications.
• Package Type: Surface Mount SOT223 package, ideal for compact and space-efficient designs.
• Moisture Sensitivity Level: MSL 1 (Unlimited), indicating high resistance to moisture and suitability for various environmental conditions.
• PSRR: High power supply rejection ratio of 72dB at 120Hz, ensuring minimal noise and ripple in the output voltage.

NCP1117ST15T3 Applications

The NCP1117ST15T3 is well-suited for a variety of applications where a stable and efficient power supply is required. Some specific use cases include:

• Consumer Electronics: Ideal for powering devices such as smartphones, tablets, and other portable electronics where space and efficiency are critical.
• Industrial Equipment: Suitable for industrial control systems, sensors, and actuators that require a reliable and stable power source.
• Telecommunications: Can be used in base stations, routers, and other telecom equipment where high efficiency and low dropout voltage are essential.
• Automotive Electronics: Applicable in automotive applications such as infotainment systems, where the regulator's wide operating temperature range and robust protection features are beneficial.

Conclusion of NCP1117ST15T3

The NCP1117ST15T3 is a versatile and reliable linear voltage regulator that offers a combination of high efficiency, low dropout voltage, and robust protection features. Its fixed 1.5V output voltage and 1A output current capability make it suitable for a wide range of applications, from consumer electronics to industrial systems. The Surface Mount SOT223 package ensures compact and space-efficient design, while its wide operating temperature range and high PSRR contribute to its reliability and performance. Despite being marked as obsolete, the NCP1117ST15T3 remains a valuable component for designers seeking a stable and efficient power supply solution.