Texas Instruments

LP3871EMP-5.0/NOPB  

Linear & Switching Voltage Regulators

LP3871EMP-5.0/NOPB Description

The LP3871EMP-5.0/NOPB is a high-performance linear regulator designed by Texas Instruments, offering a fixed output voltage of 5V and capable of delivering up to 800mA of output current. This device is optimized for surface-mount applications and is housed in a compact SOT223-5 package, making it suitable for space-constrained designs. The regulator features a low dropout voltage of 0.35V at 800mA, ensuring efficient power conversion even at low input-to-output voltage differentials. With a maximum input voltage of 7V, the LP3871EMP-5.0/NOPB is ideal for a wide range of voltage sources, providing stable regulation and minimal power loss.

LP3871EMP-5.0/NOPB Features

• Fixed Output Voltage: The LP3871EMP-5.0/NOPB maintains a precise 5V output voltage, ensuring consistent power supply to connected devices.
• High Output Current: Capable of delivering up to 800mA, this regulator supports demanding applications requiring significant current.
• Low Dropout Voltage: With a maximum dropout voltage of 0.35V at 800mA, the LP3871EMP-5.0/NOPB operates efficiently even when the input voltage is close to the output voltage.
• Low Quiescent Current: The regulator consumes only 5mA in quiescent mode, minimizing power consumption during standby or low-load conditions.
• Enable Control Feature: The enable pin allows for dynamic control of the regulator's operation, enabling power-saving modes and remote shutdown capabilities.
• Protection Features: Comprehensive protection mechanisms, including over-current, over-temperature, and short-circuit protection, ensure robustness and reliability in various operating conditions.
• High PSRR: The regulator offers a high power supply rejection ratio (PSRR) of 73dB to 57dB at 120Hz, effectively filtering out noise from the input supply and maintaining a clean output voltage.
• Compliance and Packaging: The LP3871EMP-5.0/NOPB is REACH unaffected and RoHS3 compliant, ensuring environmental sustainability. It is available in a tape and reel (TR) package, facilitating automated assembly processes.

LP3871EMP-5.0/NOPB Applications

The LP3871EMP-5.0/NOPB is well-suited for a variety of applications where a stable and efficient power supply is critical. Its compact form factor and high performance make it ideal for:

• Consumer Electronics: Powering devices such as smartphones, tablets, and portable gaming consoles where space and efficiency are paramount.
• Industrial Equipment: Providing reliable power to sensors, actuators, and control systems in industrial automation and IoT applications.
• Telecommunications: Ensuring stable power for base station equipment, network routers, and other communication infrastructure.
• Medical Devices: Supplying regulated power to diagnostic equipment, wearable health monitors, and other medical electronics where precision and reliability are essential.

Conclusion of LP3871EMP-5.0/NOPB

The LP3871EMP-5.0/NOPB from Texas Instruments stands out as a versatile and efficient linear regulator, offering a compelling combination of high output current, low dropout voltage, and comprehensive protection features. Its fixed 5V output and low quiescent current make it an excellent choice for applications requiring stable power delivery with minimal power loss. The enable control feature and high PSRR further enhance its performance, making it suitable for a wide range of consumer, industrial, and medical applications. With its compact SOT223-5 package and surface-mount design, the LP3871EMP-5.0/NOPB is an ideal solution for modern electronics where space and efficiency are critical considerations.

LP3871EMP-5.0/NOPB Documents

Download datasheets and manufacturer documentation for LP3871EMP-5.0/NOPB

Datasheets :

LP3871, LP3874      

PCN Packaging :

Pin One Dot 07/Jan/2019