Texas Instruments

LP2981AIM5-2.8/NOPB

LP2981AIM5-2.8/NOPB Description

The LP2981AIM5-2.8/NOPB is a fixed output linear voltage regulator designed by Texas Instruments, offering a regulated output voltage of 2.8V with a maximum output current of 100mA. This regulator is housed in a compact SOT23-5 package, making it suitable for a wide range of space-constrained applications. The device features a maximum input voltage of 16V and a dropout voltage of only 0.37V at 100mA, ensuring efficient operation even at low input-to-output voltage differences. With a quiescent current of 95 µA and a supply current of 1.7 mA, the LP2981AIM5-2.8/NOPB is optimized for low power consumption, making it ideal for battery-powered and portable devices.

LP2981AIM5-2.8/NOPB Features

• Fixed Output Voltage: Provides a stable 2.8V output, ensuring consistent performance in various applications.
• High Input Voltage Range: Capable of handling input voltages up to 16V, offering flexibility in power supply design.
• Low Dropout Voltage: With a maximum dropout voltage of 0.37V at 100mA, the regulator maintains high efficiency even at low input-to-output voltage differences.
• Low Quiescent Current: Features a quiescent current of 95 µA, minimizing power consumption and extending battery life in portable devices.
• Enable Control Feature: Includes an enable pin, allowing for dynamic control of the regulator's operation, which can be useful for power-saving modes.
• Protection Features: Equipped with over-current, over-temperature, and short-circuit protection, ensuring robustness and reliability in various operating conditions.
• Surface Mount Technology: The SOT23-5 package is designed for surface mount applications, facilitating easy integration into modern PCB designs.
• Compliance: The LP2981AIM5-2.8/NOPB is REACH unaffected and RoHS3 compliant, meeting environmental and regulatory standards.
• Moisture Sensitivity Level: Rated at MSL 1 (Unlimited), the device is suitable for a wide range of manufacturing environments without additional moisture protection.

LP2981AIM5-2.8/NOPB Applications

The LP2981AIM5-2.8/NOPB is ideal for applications requiring a stable 2.8V supply with low power consumption. Some specific use cases include:

• Battery-Powered Devices: The low dropout voltage and quiescent current make it suitable for applications where battery life is critical, such as handheld devices, portable electronics, and wearables.
• Low-Power Systems: Ideal for low-power embedded systems, microcontrollers, and IoT devices where efficiency and compact size are essential.
• Consumer Electronics: Can be used in various consumer electronics applications, such as smartphones, tablets, and other portable devices that require a stable power supply.
• Industrial Applications: Suitable for industrial applications where a reliable and efficient power supply is needed, such as in sensors, actuators, and control systems.

Conclusion of LP2981AIM5-2.8/NOPB

The LP2981AIM5-2.8/NOPB from Texas Instruments is a versatile and efficient linear voltage regulator designed for applications requiring a stable 2.8V output. Its low dropout voltage, low quiescent current, and compact SOT23-5 package make it an excellent choice for battery-powered and low-power applications. The inclusion of enable control and comprehensive protection features further enhances its reliability and flexibility. Despite being marked as obsolete, the LP2981AIM5-2.8/NOPB remains a reliable option for designers seeking a high-performance, low-power regulator in a compact form factor.