Texas Instruments

LP3871ET-3.3/NOPB

LP3871ET-3.3/NOPB Description

The LP3871ET-3.3/NOPB is a fixed output linear voltage regulator designed by Texas Instruments, offering a regulated output voltage of 3.3V with a maximum output current of 800mA. This regulator is housed in a through-hole TO-220-5 package, making it suitable for applications requiring robust and reliable power management solutions. The device features a maximum input voltage of 7V and a dropout voltage of 0.35V at 800mA, ensuring efficient power delivery even under varying load conditions. With a quiescent current of just 5mA and a supply current of up to 15mA, the LP3871ET-3.3/NOPB is optimized for low power consumption, making it ideal for battery-powered and energy-sensitive applications. The regulator also includes enable control features and comprehensive protection mechanisms such as over-current, over-temperature, and short-circuit protection, enhancing its reliability and robustness in diverse operating environments.

LP3871ET-3.3/NOPB Features

• Fixed Output Voltage: Provides a stable 3.3V output, ensuring consistent power supply to connected devices.
• High Output Current: Capable of delivering up to 800mA, suitable powering for a wide range of electronic components and systems.
• Low Dropout Voltage: A maximum dropout voltage of 0.35V at 800mA ensures high efficiency, especially under heavy load conditions.
• Low Quiescent Current: With a quiescent current of only 5mA, the regulator minimizes power consumption during idle periods.
• Enable Control: The enable feature allows for dynamic control of the regulator's operation, enhancing flexibility in power management.
• Protection Features: Over-current, over-temperature, and short-circuit protection mechanisms safeguard the regulator and connected circuits from potential damage.
• Through-Hole Mounting: The TO-220-5 package is designed for through-hole mounting, providing mechanical stability and ease of integration into printed circuit boards.
• Compliance: The LP3871ET-3.3/NOPB is REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory adherence.

LP3871ET-3./N3OPB Applications

The LP3871ET-3.3/NOPB is well-suited for a variety of applications where a stable and efficient power supply is critical. Some specific use cases include:

• Embedded Systems: Ideal for powering microcontrollers, sensors, and other embedded components that require a stable 3.3V supply.
• Battery-Powered Devices: The low quiescent current and high efficiency make it suitable for applications where battery life is a key consideration.
• Industrial Control Systems: Provides reliable power management for control modules and actuators in industrial environments.
• Telecommunications: Suitable for powering communication modules and peripherals that require a stable voltage supply.
• Consumer Electronics: Can be used in a range of consumer devices, from portable gadgets to home appliances, ensuring consistent power delivery and enhanced reliability.

Conclusion of LP3871ET-3.3/NOPB

The LP3871ET-3.3/NOPB from Texas Instruments is a robust and efficient linear voltage regulator that offers a stable 3.3V output with a maximum current of 800mA. Its low dropout voltage, low quiescent current, and comprehensive protection features make it an ideal choice for a variety of applications, particularly those requiring high reliability and energy efficiency. Despite being marked as obsolete, the LP3871ET-3.3/NOPB remains a valuable component for designers seeking a proven and reliable power management solution.