onsemi

L78LR05D-TL-E

L78LR05D-TL-E Description

The L78LR05D-TL-E is a linear voltage regulator designed by onsemi, offering a fixed output voltage of 5V and a maximum output current of 150mA. This regulator is part of the L78LR05 family, known for its reliability and performance in various electronic applications. Despite being marked as obsolete, the L78LR05D-TL-E remains a viable option for specific use cases where its unique features and performance benefits are required.

L78LR05D-TL-E Features

• Output Type: Fixed, ensuring a stable 5V output voltage.
• Input Voltage Range: Capable of handling up to 20V, providing flexibility in input power sources.
• Output Current: Delivers a consistent 150mA, suitable for low-to-medium power applications.
• Number of Regulators: Single regulator design, simplifying circuit integration.
• Output Configuration: Positive output voltage, ideal for standard power supply requirements.
• Voltage Dropout: A maximum dropout voltage of 2.2V at 40mA, ensuring efficient operation even at lower input voltages.
• Power Supply Rejection Ratio (PSRR): Achieves 79dB at 120Hz, minimizing noise and ripple in the output voltage.
• Protection Features: Includes over-current and over-temperature protection, safeguarding the regulator and connected components from damage.
• Control Features: Reset functionality, allowing for controlled restarts and improved system reliability.
• Mounting Type: Through-hole, ensuring robust mechanical stability and ease of integration into PCB designs.
• Package: Tape & Reel (TR), facilitating efficient handling and assembly in production environments.
• Compliance: ROHS3 compliant and REACH unaffected, meeting environmental and regulatory standards.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), suitable for storage and handling in various environmental conditions.

L78LR05D-TL-E Applications

The L78LR05D-TL-E is ideal for applications requiring a stable 5V supply with moderate current capabilities. Its low dropout voltage and high PSRR make it suitable for applications where input voltage fluctuations are common, such as in automotive electronics, industrial control systems, and consumer electronics. The over-current and over-temperature protection features ensure reliable operation in environments with varying load conditions.

Specific use cases include:

• Automotive Electronics: Providing stable power to electronic control units (ECUs) and sensors.
• Industrial Control Systems: Supplying power to PLCs, actuators, and other control devices.
• Consumer Electronics: Powering microcontrollers, communication modules, and other low-power peripherals.

Conclusion of L78LR05D-TL-E

The L78LR05D-TL-E, despite its obsolete status, remains a robust and reliable linear voltage regulator suitable for applications requiring a stable 5V supply. Its low dropout voltage, high PSRR, and comprehensive protection features make it a standout choice in its category. While newer alternatives may offer additional features, the L78LR05D-TL-E's proven performance and compatibility with existing designs ensure it continues to be a valuable component in the electronics industry.