Texas Instruments

LP2981AIM5X-3.0

LP2981AIM5X-3.0 Description

The LP2981AIM5X-3.0 is a Linear Voltage Regulator IC from Texas Instruments, designed to provide a stable 3V output with a maximum current of 100mA. It features a fixed output voltage and a positive output configuration, making it suitable for a wide range of applications. The device is surface mount and comes in a SOT23-5 package, making it compact and easy to integrate into various designs.

LP2981AIM5X-3.0 Features

• Output Type: Fixed, ensuring a stable and consistent output voltage.
• Voltage - Input (Max): 16V, allowing for a wide range of input voltages.
• Current - Output: 100mA, providing sufficient current for many applications.
• Number of Regulators: 1, simplifying the design and reducing component count.
• Output Configuration: Positive, suitable for most applications requiring a positive voltage output.
• Current - Supply (Max): 1.7 mA, ensuring low power consumption.
• Voltage - Output (Min/Fixed): 3V, providing a stable output voltage.
• Voltage Dropout (Max): 0.37V @ 100mA, ensuring high efficiency.
• Current - Quiescent (Iq): 95 µA, minimizing power loss in standby mode.
• PSRR: 63dB (1kHz), providing excellent power supply rejection ratio.
• Control Features: Enable, allowing for easy control of the output voltage.
• Protection Features: Over Current, Over Temperature, Short Circuit, ensuring device reliability and safety.

LP2981AIM5X-3.0 Applications

The LP2981AIM5X-3.0 is ideal for applications requiring a stable 3V output with low power consumption and high efficiency. Some specific use cases include:

1. Portable Electronics: Due to its low quiescent current and small form factor, it is suitable for battery-powered devices.
2. Industrial Control Systems: The device's ability to handle a wide input voltage range and provide a stable output makes it ideal for industrial applications.
3. Sensors and Transducers: The stable 3V output is perfect for powering sensors and transducers in various monitoring systems.

Conclusion of LP2981AIM5X-3.0

The LP2981AIM5X-3.0 is a versatile Linear Voltage Regulator IC from Texas Instruments, offering a fixed 3V output with a maximum current of 100mA. Its unique features, such as low quiescent current, high PSRR, and built-in protection features, make it an excellent choice for a wide range of applications, including portable electronics, industrial control systems, and sensor applications. Despite being classified as obsolete, it remains a reliable and efficient solution for designers looking for a stable and low-power voltage regulator.