The MC7808A is a three-terminal positive voltage regulator from Fairchild/ON Semiconductor, designed to provide a stable 8V output voltage. It's commonly used in a wide range of electronic devices and power supply applications to ensure a consistent and reliable voltage source for sensitive components. This series of regulators offers built-in protection features that prevent damage from overloads or overheating.

Applications:

• Linear Voltage Regulation
• Power Supplies for Microcontrollers
• Instrumentation
• Consumer Electronics
• Voltage Regulation for TTL Logic

Features:

• Output Current up to 1A
• Fixed 8V Output Voltage
• Thermal Overload Protection
• Short-Circuit Current Limiting
• Output Transistor Safe-Area Compensation

Benefits:

• Stable and Reliable Voltage: Provides a consistent 8V output, ensuring reliable operation of connected devices.
• Overload Protection: Prevents damage from excessive current draw, increasing system longevity.
• Thermal Protection: Shuts down the regulator in case of overheating, preventing damage.
• Simplified Design: Requires minimal external components for operation.

Additional Details:

The MC7808A requires a minimum input voltage typically around 10.5V to maintain regulation. The device is typically packaged in a TO-220 package. It offers internal current limiting, and safe area protection. The operating temperature range is typically from 0°C to +125°C. Because of the internal protection features, these regulators are virtually indestructible. The MC7808A regulators can be used to create adjustable voltage regulators with the addition of two external resistors.