The AN78M09LBI is a three-terminal positive voltage regulator manufactured by Panasonic. It provides a fixed output voltage of 9V with a maximum output current of 0.5A. This regulator is designed for various electronic applications that require a stable and regulated 9V power supply. It is characterized by its simplicity, reliability, and built-in protection features.

Applications

• Power supplies for small electronic devices
• Voltage regulation in audio amplifiers
• Battery chargers
• Industrial control systems
• Consumer electronics

Features

• Fixed 9V output voltage
• 0.5A output current
• Built-in overcurrent protection
• Built-in thermal overload protection
• Short-circuit protection
• Simple three-terminal design

Benefits

• Provides a stable and regulated 9V power supply for sensitive electronic components.
• Protects the regulator and the connected circuitry from damage due to overcurrent conditions.
• Prevents the regulator from overheating and failing due to excessive power dissipation.
• Safeguards the regulator and the load from damage caused by short circuits.
• Simplifies circuit design and reduces the number of external components required.

Additional Details

The AN78M09LBI is typically packaged in a TO-220 or similar through-hole package, which allows for easy mounting and heatsinking. It requires minimal external components for operation, typically only input and output capacitors to improve stability and reduce noise. The datasheet provides detailed information on thermal characteristics, input voltage range, and recommended operating conditions. Refer to the official Panasonic datasheet for comprehensive specifications and application notes.