Texas Instruments

LP3961ES-3.3

LP3961ES-3.3 Description

The LP3961ES-3.3 is a high-performance linear regulator designed by Texas Instruments, offering a fixed output voltage of 3.3V and a maximum output current of 800mA. This regulator is housed in a surface-mount DDPAK package, making it suitable for compact and high-density PCB designs. The LP3961ES-3.3 features a maximum input voltage of 7V and a dropout voltage of 0.35V at full load, ensuring efficient operation even under varying input conditions. With a quiescent current of 9mA and a supply current of up to 15mA, this regulator is optimized for low power consumption, making it ideal for battery-powered and energy-sensitive applications.

LP3961ES-3.3 Features

• Output Type: Fixed 3.3V output voltage, providing stable power supply for sensitive electronics.
• High Efficiency: With a dropout voltage of only 0.35V at 800mA, the LP3961ES-3.3 maintains high efficiency even at high load currents.
• Protection Features: Over-current, over-temperature, and short-circuit protections ensure robustness and reliability in various operating conditions.
• Control Features: An enable pin allows for dynamic control of the regulator, enabling power-saving modes and quick response to system demands.
• Low Quiescent Current: At 9mA, the quiescent current is minimized, contributing to extended battery life in portable devices.
• Moisture Sensitivity Level: MSL 3 (168 Hours) ensures the component’s reliability in humid environments, making it suitable for industrial and outdoor applications.
• Compliance: REACH Unaffected and ECCN EAR99 classifications ensure compliance with international regulations, facilitating global deployment.

LP3961ES-3.3 Applications

The LP3961ES-3.3 is ideal for a variety of applications requiring a stable 3.3V power supply with high efficiency and low power consumption. Key applications include:

• Consumer Electronics: Ideal for powering sensitive components in smartphones, tablets, and other portable devices.
• Industrial Systems: Suitable for industrial control systems, sensors, and IoT devices where reliability and efficiency are paramount.
• Telecommunications: Provides stable power for base stations, routers, and other communication equipment.
• Automotive Electronics: Can be used in automotive infotainment systems, onboard computers, and other electronic control units.

Conclusion of LP3961ES-3.3

The LP3961ES-3.3 from Texas Instruments is a versatile and efficient linear regulator designed to meet the demands of modern electronic systems. Its fixed 3.3V output, high efficiency, and comprehensive protection features make it a reliable choice for a wide range of applications. Despite its obsolete status, the LP3961ES-3.3 remains a valuable component for engineers seeking a dependable power management solution.