The LM1086CSX-2.5 is a low dropout (LDO) voltage regulator from Texas Instruments (TI), formerly National Semiconductor. It's designed to provide a stable 2.5V output voltage with a low dropout voltage, making it suitable for battery-powered and other applications where input voltage may fluctuate.

Applications:

• Post Regulation for Switching Supplies
• Battery Chargers
• Microprocessor Power Supplies
• Voltage Reference
• Portable Electronics

Features:

• Low Dropout Voltage: Maintains regulation with a small difference between input and output voltage.
• Fixed 2.5V Output: Provides a precise and stable output voltage.
• Current Limiting: Protects the regulator and connected circuitry from overcurrent conditions.
• Thermal Shutdown: Prevents damage due to excessive temperature.
• Surface Mount Package: Facilitates automated assembly and minimizes board space.

Benefits:

• Stable Output Voltage: Provides a reliable power source for sensitive electronic components.
• Extended Battery Life: Low dropout voltage improves efficiency, extending battery life in portable devices.
• Overload Protection: Current limiting and thermal shutdown protect against damage from overcurrent and overheating.
• Simplified Design: Fixed output voltage simplifies circuit design.
• Compact Design: Surface mount package saves board space.

Additional Details:

The LM1086CSX-2.5 is typically available in a surface mount package such as a SOT-223. It can typically supply up to 1.5A of output current. The dropout voltage is typically less than 1.5V at the rated current. Refer to the datasheet for detailed specifications, including input voltage range, quiescent current, and thermal resistance.