Texas Instruments

LP3964ET-5.0

LP3964ET-5.0 Description

The LP3964ET-5.0 is a fixed-output linear voltage regulator designed by Texas Instruments. This regulator is designed to provide a stable 5V output with a maximum output current of 800mA. It features a maximum input voltage of 7V and a dropout voltage of 0.35V at 800mA, ensuring efficient operation even under varying input conditions. The LP3964ET-5.0 is housed in a through-hole TO-220-5 package, making it suitable for applications requiring robust mechanical stability and ease of integration.

LP3964ET-5.0 Features

• Fixed Output Voltage: The LP3964ET-5.0 offers a fixed output voltage of 5V, ensuring consistent power supply to connected devices.
• High Output Current: With a maximum output current of 800mA, this regulator can support a wide range of applications requiring moderate to high current loads.
• Low Dropout Voltage: A maximum dropout voltage of 0.35V at 800mA ensures high efficiency, especially in applications where the input voltage is close to the output voltage.
• Enable Control Feature: The enable control feature allows for dynamic control of the regulator's operation, enabling power-saving modes and controlled startup sequences.
• Protection Features: Over-current, over-temperature, and short-circuit protection ensure reliable operation and protect the regulator from damage under abnormal conditions.
• Low Quiescent Current: A quiescent current of 9 mA ensures minimal power consumption during normal operation, contributing to overall system efficiency.
• Compliance and Packaging: The LP3964ET-5.0 is REACH unaffected and ROHS3 compliant, making it suitable for environmentally conscious applications. It is packaged in a tube, ensuring ease of handling and storage.

LP3964ET-5.0 Applications

The LP3964ET-5.0 is ideal for a variety of applications where a stable and efficient power supply is required. Its fixed 5V output and high current capability make it suitable for:

• Consumer Electronics: Powering devices such as set-top boxes, gaming consoles, and other consumer electronics that require a stable 5V supply.
• Industrial Equipment: Providing reliable power to control systems, sensors, and actuators in industrial environments.
• Telecommunications: Ensuring stable power supply to communication modules and base stations.
• Automotive Applications: Suitable for in-vehicle electronics where a robust and efficient power supply is essential.

Conclusion of LP3964ET-5.0

The LP3964ET-5.0 is a robust and efficient linear voltage regulator designed to meet the demands of modern electronic systems. Its fixed 5V output, high current capability, and low dropout voltage make it an ideal choice for applications requiring stable and efficient power supply. The inclusion of enable control and comprehensive protection features further enhances its reliability and versatility. Despite being marked as obsolete, the LP3964ET-5.0 remains a valuable component for engineers and designers seeking a dependable power solution in various applications.