Texas Instruments

LP3962ESX-3.3

LP3962ESX-3.3 Description

The LP3962ESX-3.3 is a high-performance, fixed-output linear regulator from Texas Instruments, designed to deliver a stable 3.3V output at a maximum current of 1.5A. This regulator is part of the Power Management Integrated Circuits (PMIC) category and is housed in a Surface Mount package, specifically the DDPAK form factor. The LP3962ESX-3.3 is known for its low dropout voltage of 0.55V at 1.5A, making it highly efficient even when the input voltage is close to the output voltage. It features an input voltage range up to 7V and a quiescent current of 9 mA, ensuring minimal power consumption during operation. The regulator also includes an enable control feature, allowing for precise power management, and offers robust protection mechanisms such as over-current, over-temperature, and short-circuit protection. Despite being marked as obsolete, the LP3962ESX-3.3 remains a reliable choice for applications requiring a compact, efficient, and reliable power solution.

LP3962ESX-3.3 Features

• Fixed Output Voltage: Provides a stable 3.3V output, ideal for applications requiring a consistent power supply.
• High Current Capability: Delivers up to 1.5A of output current, suitable for powering demanding devices.
• Low Dropout Voltage: With a maximum dropout voltage of 0.55V at 1.5A, it maintains high efficiency even at low input-to-output voltage differentials.
• Enable Control Feature: Allows for dynamic power management, enabling or disabling the regulator as needed.
• Protection Features: Includes over-current, over-temperature, and short-circuit protection to safeguard the regulator and connected devices.
• Low Quiescent Current: Consumes only 9 mA in quiescent state, minimizing power loss.
• Surface Mount Package: The DDPAK package ensures a compact and reliable design, suitable for space-constrained applications.
• Moisture Sensitivity Level: MSL 3 (168 Hours) ensures the component remains stable in various environmental conditions.
• Compliance: REACH Unaffected and ECCN EAR99, ensuring compliance with international regulations.

LP3962ESX-3.3 Applications

The LP3962ESX-3.3 is well-suited for a variety of applications where a reliable and efficient power supply is essential. Its high current capability and low dropout voltage make it ideal for:

• Embedded Systems: Providing stable power to microcontrollers and other embedded components.
• Consumer Electronics: Ensuring consistent power delivery in devices such as smartphones, tablets, and portable gaming consoles.
• Industrial Equipment: Powering sensors, actuators, and control systems in industrial environments.
• Telecommunications: Supplying power to base stations, routers, and other networking equipment.
• Automotive Applications: Suitable for in-vehicle electronics, infotainment systems, and other automotive devices.

Conclusion of LP3962ESX-3.3

The LP3962ESX-3.3 from Texas Instruments is a versatile and efficient linear regulator, offering a stable 3.3V output at up to 1.5A. Its low dropout voltage, enable control feature, and comprehensive protection mechanisms make it a reliable choice for a wide range of applications. Despite its obsolete status, the LP3962ESX-3.3 remains a valuable component for designers seeking a compact, high-performance power solution. Its compliance with international regulations and robust protection features further enhance its appeal in the electronics industry.