The LP3963ES-3.3/NOPB is a high-performance, fast, ultra-low-dropout linear regulator from Texas Instruments, designed to provide precise voltage control for a wide range of applications. This regulator is capable of delivering 3A of continuous output current with a dropout voltage of just 340mV at full load, making it an excellent choice for systems that require a stable and efficient power supply.

Key Features

• Output Voltage: The device provides a fixed output voltage of 3.3V, which is ideal for powering 3.3V logic in microcontrollers, digital signal processors (DSPs), and other sensitive electronic components.
• High Efficiency: With its ultra-low dropout design, the LP3963ES-3.3/NOPB ensures maximum efficiency, which is crucial for battery-powered devices and energy-sensitive applications.
• Output Current: The regulator can supply up to 3A of output current, making it suitable for high-current applications.
• Stability: It is stable with ceramic output capacitors, ensuring reliable performance and simplifying the design process.
• Protection Features: The device includes built-in thermal shutdown and current limit protection to safeguard the regulator and downstream components from damage due to overheating or overcurrent conditions.
• Adjustable Output: An external resistor divider can be used to adjust the output voltage from 1.21V to 5V, providing design flexibility.

Applications

The LP3963ES-3.3/NOPB is versatile and can be used in various applications such as:

• High-efficiency linear power supplies
• Battery-powered equipment
• Post-regulation for switching supplies
• Low-voltage logic supplies
• Computer add-on cards

Package and Quality

This regulator is available in a thermally efficient TO-263 package, which is suitable for surface mount technology (SMT) and is easy to integrate into a variety of circuit boards. The NOPB designation indicates that the product is lead-free and RoHS compliant, aligning with environmental standards and regulations.

With its robust design, comprehensive protection features, and ability to maintain a stable output under varying conditions, the LP3963ES-3.3/NOPB from Texas Instruments is a reliable choice for designers seeking a high-quality power management solution.