The UA79MG is a series of 3-Terminal Negative Voltage Regulators manufactured by Fairchild/ON Semiconductor. These regulators are designed to provide a stable and regulated negative voltage output for a variety of electronic circuits. They are commonly used in applications where a regulated negative voltage supply is required, such as in operational amplifier circuits, data acquisition systems, and other analog circuits.

Applications:

• Negative voltage power supplies
• Operational amplifier circuits
• Data acquisition systems
• Analog circuits requiring negative voltage
• Instrumentation equipment
• Linear regulators
• Post regulation for switching regulators

Features:

• Adjustable output voltage: Typically adjustable from -5V to -30V (depending on the specific variant).
• Output current capability: Up to 500mA or 1A (depending on the specific variant).
• Internal thermal overload protection: Protects the regulator from overheating.
• Short-circuit current limiting: Limits the output current in the event of a short circuit.
• Output transistor safe-area compensation: Ensures stable operation over a wide range of operating conditions.
• Standard 3-terminal package: Easy to use and integrate into existing circuits.

Benefits:

• Stable negative voltage: Provides a stable and regulated negative voltage for sensitive electronic circuits.
• Adjustable output: Allows the output voltage to be adjusted to the specific needs of the application.
• Overload protection: Thermal overload protection and short-circuit current limiting prevent damage to the regulator and the connected circuits.
• Easy to use: The standard 3-terminal package simplifies integration into existing circuits.
• Cost-effective: Provides a cost-effective solution for generating a regulated negative voltage.

Additional Details:

The UA79MG series comes in various package types, including TO-220 and other standard packages. The output voltage is typically adjusted using external resistors. It is important to refer to the device datasheet for specific details on the output voltage range, current limits, and thermal characteristics. Proper heat sinking may be required, depending on the output current and input voltage. Specific variants include UA79MG/883, UA79MG/B, and others, each offering slight variations in performance or environmental ratings.