onsemi

L78LR05D-FA-E

L78LR05D-FA-E Description

The L78LR05D-FA-E is a linear regulator designed by onsemi, a leading manufacturer in the electronics industry. This IC is part of the Power Management (PMIC) category and offers a fixed output voltage of 5V with a maximum output current of 150mA. It is housed in a TP5HFA surface-mount package, making it suitable for compact and space-constrained applications. Despite its small form factor, the L78LR05D-FA-E boasts a maximum input voltage of 20V and a dropout voltage of 2.2V at 40mA, ensuring efficient power regulation even under varying load conditions. With a PSRR (Power Supply Rejection Ratio) of 79dB at 120Hz, it provides excellent noise filtering capabilities, making it ideal for sensitive electronic circuits. The regulator also features over current and over temperature protection, enhancing its reliability and longevity. Although the L78LR05D-FA-E is now obsolete, it remains a benchmark for its performance and features.

L78LR05D-FA-E Features

• Fixed Output Voltage: 5V, ensuring stable power supply for various electronic devices.
• High Input Voltage Range: Up to 20V, accommodating a wide range of input power sources.
• Low Dropout Voltage: 2.2V at 40mA, enabling efficient operation even at low input-to-output voltage differentials.
• High PSRR: 79dB at 120Hz, providing superior noise rejection and ensuring clean power delivery.
• Over Current and Over Temperature Protection: Enhances reliability and prevents damage under abnormal operating conditions.
• Surface-Mount Package: TP5HFA, ideal for compact and high-density PCB designs.
• Control Features: Includes a reset function, allowing for controlled power sequencing and system reset.
• Moisture Sensitivity Level: MSL 1 (Unlimited), ensuring robustness in various environmental conditions.
• Compliance: REACH Unaffected, ensuring compliance with environmental and safety regulations.

L78LR05D-FA-E Applications

The L78LR05D-FA-E is well-suited for a variety of applications where a stable and reliable power supply is crucial. Its fixed 5V output and low dropout voltage make it ideal for powering microcontrollers, sensors, and other low-power electronic devices. The high PSRR and noise filtering capabilities are particularly beneficial in sensitive applications such as audio equipment, precision measurement instruments, and medical devices. The over current and over temperature protection features make it a reliable choice for applications in harsh environments or where the risk of overloading is high. Additionally, its surface-mount package and compact size make it suitable for consumer electronics, portable devices, and IoT applications where space is at a premium.

Conclusion of L78LR05D-FA-E

The L78LR05D-FA-E by onsemi is a robust and versatile linear regulator that offers a combination of high performance and reliability. Its fixed 5V output, low dropout voltage, and high PSRR make it an excellent choice for a wide range of applications, from sensitive electronic circuits to compact consumer devices. Despite being obsolete, the L78LR05D-FA-E remains a testament to onsemi's commitment to delivering high-quality power management solutions. For engineers and designers seeking a reliable and efficient power regulator, the L78LR05D-FA-E provides a solid foundation for stable and noise-free power delivery.