Texas Instruments

LP3874EMP-5.0  

Linear & Switching Voltage Regulators

LP3874EMP-5.0 Description

The LP3874EMP-5.0 is a linear regulator designed by Texas Instruments, offering a fixed 5V output voltage with a maximum output current of 800mA. This regulator is housed in a Surface Mount SOT223-5 package, making it suitable for compact and high-density PCB designs. The LP3874EMP-5.0 is designed to operate with an input voltage range up to 7V and features a low dropout voltage of 0.35V at 800mA, ensuring efficient power conversion even at low input-to-output voltage differentials.

LP3874EMP-5.0 Features

• Output Type: Fixed 5V output voltage, providing stable power supply for various applications.
• Input Voltage Range: Capable of handling input voltages up to 7V, offering flexibility in power source selection.
• Output Current: Delivers a robust 800mA of output current, suitable for powering a wide range of electronic devices.
• Low Dropout Voltage: With a maximum dropout voltage of 0.35V at 800mA, the LP3874EMP-5.0 ensures high efficiency and minimal power loss.
• Control Features: Includes an enable function, allowing for dynamic control of the regulator’s operation.
• Protection Features: Equipped with over-current, over-temperature, and short-circuit protection, ensuring reliable operation and safeguarding against potential faults.
• Power Supply Current: A maximum supply current of 15mA, contributing to low power consumption.
• Quiescent Current: Low quiescent current of 9mA, enhancing overall system efficiency.
• PSRR: Offers a high power supply rejection ratio (PSRR) of 73dB to 57dB at 120Hz, ensuring minimal noise and ripple in the output voltage.
• Moisture Sensitivity Level: MSL 1 (Unlimited), making it suitable for a wide range of environmental conditions.
• Package Type: Available in a Tape & Reel (TR) package, facilitating automated assembly processes.

LP3874EMP-5.0 Applications

The LP3874EMP-5.0 is well-suited for a variety of applications where a stable and efficient power supply is required. Its fixed 5V output and robust current handling capabilities make it ideal for:

• Consumer Electronics: Powering devices such as smartphones, tablets, and portable gaming consoles.
• Industrial Equipment: Providing reliable power to sensors, actuators, and control systems.
• Telecommunications: Ensuring stable power supply for base stations, routers, and other networking equipment.
• Automotive: Suitable for in-vehicle electronics, infotainment systems, and advanced driver assistance systems (ADAS).
• Medical Devices: Powering diagnostic equipment, monitoring devices, and portable medical instruments.

Conclusion of LP3874EMP-5.0

The LP3874EMP-5.0 from Texas Instruments is a versatile and efficient linear regulator that offers a fixed 5V output with a maximum current of 800mA. Its low dropout voltage and comprehensive protection features make it a reliable choice for a wide range of applications. Despite being marked as obsolete, the LP3874EMP-5.0 remains a valuable component for engineers and designers seeking a stable and efficient power solution. Its compact SOT223-5 package and surface mount design further enhance its suitability for modern, space-constrained electronic systems.

LP3874EMP-5.0 Documents

Download datasheets and manufacturer documentation for LP3874EMP-5.0

Datasheets :

LP3871, LP3874      

HTML Datasheet :

LP3871, LP3874