The 79L12A is a three-terminal negative voltage regulator belonging to the 79Lxx series. It is designed to provide a fixed -12V output voltage with a low dropout voltage and is capable of delivering up to 100mA of output current. The 79L12A is commonly used in applications requiring a regulated negative voltage supply.

Applications

• Dual Power Supplies
• Operational Amplifier Circuits
• Negative Voltage Regulation in Microcontroller Circuits
• Linear Regulators
• Analog Circuitry

Features

• Fixed -12V Output Voltage: Provides a stable and regulated -12V output.
• Low Dropout Voltage: Operates with a minimal voltage difference between input and output.
• Output Current up to 100mA: Suitable for low-power applications.
• Internal Short-Circuit Current Limiting: Protects the regulator and the load from damage.
• Thermal Overload Protection: Shuts down the regulator in case of overheating.

Benefits

• Stable Power Supply: Provides a consistent -12V output, ensuring reliable operation of connected devices.
• Simplified Circuit Design: Requires minimal external components.
• Protection Features: Prevents damage from short circuits and overheating.
• Cost-Effective Solution: Provides reliable voltage regulation at a low cost.
• Easy to Use: Simple three-terminal configuration for easy integration.

Additional Details

The 79L12A is typically packaged in a TO-92 or SO-8 package. It requires minimal external components for operation, usually input and output capacitors for stability. The input voltage must be more negative than the output voltage by at least the dropout voltage. It's commonly used in applications needing a dual power supply (e.g., +/- 12V) and is straightforward to implement in various electronic projects. The datasheet offers detailed specifications, including input voltage range, output voltage accuracy, and thermal resistance.