Texas Instruments

LP3873ESX-5.0  

Linear & Switching Voltage Regulators

LP3873ESX-5.0 Description

The LP3873ESX-5.0 is a fixed-output linear regulator designed by Texas Instruments, offering a robust and efficient solution for power management applications. This regulator is part of the Power Management Integrated Circuits (PMIC) category and is known for its high performance and reliability. The LP3873ESX-5.0 features a maximum input voltage of 7V and a fixed output voltage of 5V, capable of delivering up to 3A of output current. It is housed in a surface-mount DDPAK/TO263-5 package, making it suitable for compact and high-density designs.

LP3873ESX-5.0 Features

• Output Type: Fixed, ensuring a stable 5V output voltage.
• Input Voltage Range: Up to 7V, providing flexibility in input power sources.
• Output Current: 3A, suitable for demanding applications requiring high current.
• Number of Regulators: Single regulator, simplifying design and reducing component count.
• Output Configuration: Positive, ideal for most electronic systems.
• Supply Current: Maximum of 15 mA, minimizing power consumption.
• Dropout Voltage: 1.2V at 3A, ensuring high efficiency even at high load currents.
• Moisture Sensitivity Level: MSL 3 (168 Hours), suitable for various environmental conditions.
• Quiescent Current: 9 mA, contributing to low standby power consumption.
• Power Supply Rejection Ratio (PSRR): 73dB to 57dB at 120Hz, providing excellent noise rejection.
• Control Features: Enable function for dynamic control and power management.
• Protection Features: Over-current, over-temperature, and short-circuit protection, ensuring reliability and safety.
• Package: Tape & Reel (TR), facilitating automated assembly processes.

LP3873ESX-5.0 Applications

The LP3873ESX-5.0 is ideal for a wide range of applications due to its high current capability and fixed output voltage. It is particularly well-suited for:

• Consumer Electronics: Powering devices such as smartphones, tablets, and portable gaming consoles.
• Communication Equipment: Providing stable power to routers, modems, and other networking devices.
• Industrial Systems: Ensuring reliable power supply in control systems, automation equipment, and IoT devices.
• Automotive Electronics: Suitable for in-vehicle infotainment systems and electronic control units.
• Medical Devices: Powering diagnostic equipment, monitoring devices, and portable medical instruments.

Conclusion of LP3873ESX-5.0

The LP3873ESX-5.0 from Texas Instruments is a versatile and high-performance linear regulator that offers significant advantages over similar models. Its fixed 5V output and 3A current capability make it suitable for a wide range of applications, while its low dropout voltage and comprehensive protection features ensure high efficiency and reliability. The enable control function and surface-mount package further enhance its flexibility and ease of integration into various electronic systems. Despite being marked as obsolete, the LP3873ESX-5.0 remains a reliable choice for power management in numerous applications.

LP3873ESX-5.0 Documents

Download datasheets and manufacturer documentation for LP3873ESX-5.0

Datasheets :

LP3873, LP3876 Datasheet      

HTML Datasheet :

LP3873, LP3876 Datasheet