onsemi

NCP1117LPST15T3G

NCP1117LPST15T3G Description

The NCP1117LPST15T3G is a linear voltage regulator IC designed by onsemi, featuring a fixed output voltage of 1.5V and capable of delivering up to 1A of output current. This device is part of the Linear & Switching Voltage Regulators category and is offered in a SOT223 package. Despite being classified as obsolete, it remains a popular choice for certain applications due to its unique features and performance benefits.

NCP1117LPST15T3G Features

• Output Type: Fixed at 1.5V, providing a stable and consistent voltage supply.
• Input Voltage Range: Capable of handling input voltages up to 18V, making it suitable for a wide range of power sources.
• Output Current: Can deliver up to 1A, sufficient for most low-power applications.
• Number of Regulators: Single regulator, simplifying the design for applications requiring a single output voltage.
• Output Configuration: Positive output, ideal for applications that require a positive voltage reference.
• Voltage Dropout: Low dropout voltage of 1.4V @ 1A, ensuring high efficiency even under heavy load conditions.
• Quiescent Current: Low Iq of 700 µA, contributing to low power consumption in standby modes.
• PSRR: Excellent power supply rejection ratio of 60dB at 120Hz, minimizing noise coupling from the input to the output.
• Protection Features: Incorporates over current and over temperature protection, enhancing reliability and safety.
• RoHS Compliance: Compliant with RoHS3 standards, ensuring environmental friendliness and compliance with regulations.
• REACH Status: Unaffected by REACH regulations, indicating that it does not contain substances of very high concern.
• MSL: Rated at 1 (Unlimited), indicating that the device can be stored indefinitely without the need for special precautions.
• Operating Temperature: Robust operating temperature range of 0°C to 125°C, suitable for a variety of environments.
• Mounting Type: Surface mount, facilitating integration into compact and space-constrained designs.

NCP1117LPST15T3G Applications

The NCP1117LPST15T3G is ideal for applications requiring a stable 1.5V output with high efficiency and low noise. Some specific use cases include:

• Portable Electronics: Powering low-power circuits in devices such as smartphones, tablets, and wearables.
• Industrial Controls: Providing a stable voltage reference for sensors and control circuits in industrial automation systems.
• Medical Devices: Ensuring reliable power supply for low-power medical instruments and diagnostic equipment.
• Telecommunications: Supporting power requirements in base stations and other communication infrastructure.

Conclusion of NCP1117LPST15T3G

While the NCP1117LPST15T3G is classified as obsolete, its fixed 1.5V output, low dropout voltage, and robust protection features make it a reliable choice for applications requiring a stable and efficient voltage regulator. Its compliance with environmental regulations and wide operating temperature range further enhance its appeal for a variety of applications. Despite its age, the NCP1117LPST15T3G continues to be a valuable component in the design of low-power electronic systems.