Texas Instruments

LP2981A-30DBVRE4

LP2981A-30DBVRE4 Description

The LP2981A-30DBVRE4 is a fixed-output linear voltage regulator designed by Texas Instruments. It is part of the LP2981 family, known for its high performance and reliability. This regulator offers a fixed output voltage of 3V and is capable of delivering up to 100mA of output current. It features a maximum input voltage of 16V and a low dropout voltage of 0.37V at 100mA, making it suitable for applications where input voltage fluctuations are common. The regulator is housed in a compact SOT23-5 package, ideal for surface-mount applications.

LP2981A-30DBVRE4 Features

• Output Type: Fixed at 3V, ensuring stable power supply for sensitive electronic components.
• Input Voltage Range: Up to 16V, providing flexibility in various power supply scenarios.
• Output Current: Capable of delivering up to 100mA, sufficient for low-power applications.
• Low Dropout Voltage: 0.37V at 100mA, allowing efficient operation even at low input-to-output voltage differences.
• Quiescent Current: Low quiescent current of 95µA, minimizing power consumption in standby mode.
• Power Supply Rejection Ratio (PSRR): 63dB at 1kHz, ensuring high immunity to input voltage noise.
• Protection Features: Over-current, over-temperature, and short-circuit protection, enhancing reliability and longevity.
• Control Features: Enable function allows for easy control and shutdown of the regulator.
• Compliance: REACH Unaffected and ROHS3 Compliant, ensuring environmental and regulatory standards are met.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), suitable for a wide range of manufacturing environments.
• Mounting Type: Surface Mount, ideal for compact and space-constrained designs.
• Package: Tape & Reel (TR), facilitating automated assembly processes.

LP2981A-30DBVRE4 Applications

The LP2981A-30DBVRE4 is ideal for a variety of applications requiring a stable and efficient power supply. Its low dropout voltage and fixed output make it suitable for battery-operated devices, portable electronics, and low-power microcontroller applications. The regulator's compact form factor and surface-mount package make it a perfect fit for space-constrained designs, such as wearable technology and IoT devices. Additionally, its high PSRR and protection features ensure reliable operation in noisy and demanding environments.

Conclusion of LP2981A-30DBVRE4

The LP2981A-30DBVRE4 from Texas Instruments is a robust and efficient linear voltage regulator designed for low-power applications. Its fixed 3V output, low dropout voltage, and comprehensive protection features make it a reliable choice for a wide range of electronic devices. Despite being marked as obsolete, the LP2981A-30DBVRE4 remains a viable option for designers looking for a compact, high-performance regulator. Its compliance with environmental and regulatory standards ensures it meets the requirements of modern electronics manufacturing.