The LP3963ET-5.0 is a 5.0V fixed-output, low-dropout (LDO) voltage regulator from Texas Instruments (formerly National Semiconductor). It is designed to provide a stable and accurate output voltage from a higher input voltage, even when the input voltage is close to the output voltage. It offers excellent transient response and low noise, making it suitable for sensitive electronic devices.

Applications

• Post Regulators for Switching Supplies
• Battery-Powered Systems
• Portable Computers
• Instrumentation

Features

• 5.0V Fixed Output Voltage
• Low Dropout Voltage: 310mV (typ) at 800mA
• Low Quiescent Current: 17mA (typ)
• Stable with Ceramic Output Capacitors
• Excellent Line and Load Regulation
• Overcurrent and Overtemperature Protection

Benefits

• Stable Voltage Supply: Provides a steady 5.0V output, crucial for sensitive electronics.
• Extended Battery Life: Low quiescent current minimizes power consumption in battery-powered devices.
• Improved System Performance: Excellent transient response ensures stable output during load changes.
• Simplified Design: Stable with ceramic capacitors, simplifying circuit design and reducing BOM cost.
• Robust Protection: Overcurrent and overtemperature protection enhances system reliability.

Additional Details

The LP3963ET-5.0 is available in a TO-220 package. It is designed for use with ceramic output capacitors, which offer lower ESR and improved transient response compared to traditional electrolytic capacitors. The device features internal current limiting and thermal shutdown protection to prevent damage from overloads or overheating. The operating temperature range is typically -40°C to +125°C. Consult the datasheet for specific application information and performance characteristics.