Texas Instruments

LP3873ESX-3.3  

Linear & Switching Voltage Regulators

LP3873ESX-3.3 Description

The LP3873ESX-3.3 is a high-performance, 3A low dropout linear regulator designed by Texas Instruments. This device is part of the Power Management Integrated Circuits (PMIC) category and offers a fixed output voltage of 3.3V. It is optimized for low quiescent current, making it ideal for applications where power efficiency is critical. The LP3873ESX-3.3 features a maximum input voltage of 7V and a dropout voltage of only 1.2V at 3A, ensuring efficient operation even at high load currents. The regulator is designed with a surface mount package, making it suitable for compact and space-constrained designs. It also includes essential protection features such as over current, over temperature, and short circuit protection, enhancing reliability and safety in various applications.

LP3873ESX-3.3 Features

• Low Dropout Voltage: The LP3873ESX-3.3 boasts a maximum dropout voltage of 1.2V at 3A, which is significantly lower than many comparable regulators. This feature ensures high efficiency, especially in applications where the input voltage is close to the output voltage.
• High Current Capability: With a maximum output current of 3A, the LP3873ESX-3.3 can support demanding applications that require high current delivery.
• Low Quiescent Current: The regulator operates with a quiescent current of just 9 mA, making it suitable for battery-powered devices and other applications where minimizing power consumption is essential.
• Enable Control Feature: The LP3873ESX-3.3 includes an enable control feature, allowing users to turn the regulator on and off as needed. This feature enhances flexibility and can help manage power consumption more effectively.
• Protection Features: The device includes over current, over temperature, and short circuit protection, ensuring robustness and reliability in various operating conditions.
• Surface Mount Packaging: The surface mount package of the LP3873ESX-3.3 makes it ideal for modern, compact designs where space is at a premium.

LP3873ESX-3.3 Applications

The LP3873ESX-3.3 is well-suited for a variety of applications due to its high efficiency, low dropout voltage, and robust protection features. Some specific use cases include:

• Consumer Electronics: Ideal for portable devices such as smartphones, tablets, and laptops, where space and power efficiency are critical.
• Industrial Equipment: Suitable for industrial control systems, sensors, and other equipment that require reliable power management.
• Telecommunications: Can be used in base stations, routers, and other telecom equipment where high current and low dropout voltage are necessary.
• Automotive Electronics: The LP3873ESX-3.3 can be used in automotive applications such as infotainment systems and electronic control units, where reliability and efficiency are paramount.

Conclusion of LP3873ESX-3.3

The LP3873ESX-3.3 from Texas Instruments is a versatile and efficient low dropout linear regulator that offers significant advantages over similar models. Its low dropout voltage, high current capability, and low quiescent current make it an excellent choice for a wide range of applications. The inclusion of enable control and comprehensive protection features further enhances its reliability and flexibility. Whether used in consumer electronics, industrial equipment, telecommunications, or automotive applications, the LP3873ESX-3.3 provides a reliable and efficient power management solution.

LP3873ESX-3.3 Documents

Download datasheets and manufacturer documentation for LP3873ESX-3.3

Datasheets :

LP3873ESx-3.3/NOPB Datasheet