The uPC79N05H is a 3-Terminal Negative Voltage Regulator manufactured by NEC (now Renesas Electronics). It's designed to provide a stable -5V output voltage for various electronic circuits. This regulator is part of the 79xx series of voltage regulators, known for their simplicity, reliability, and ease of use. It offers built-in protection features to ensure safe and stable operation.

Applications:

• Negative voltage power supplies
• Microprocessor power supplies
• Linear regulators
• Power supplies for op-amps
• General-purpose voltage regulation

Features:

• -5V fixed output voltage
• Output current up to 1A
• Internal short-circuit current limiting
• Thermal overload protection
• Output transistor safe-area compensation
• Available in TO-220 package

Benefits:

• Stable Output Voltage: Provides a regulated -5V output voltage, ensuring stable operation of connected circuits.
• Overload Protection: Internal current limiting and thermal overload protection prevent damage from short circuits and overheating.
• Easy to Use: Requires minimal external components for operation.
• Reliable Performance: Robust design ensures reliable operation in various environments.
• Cost-Effective: Simple design and widespread availability make it a cost-effective voltage regulation solution.
• Safe Area Compensation: Protects output transistor from damage.

Additional Details:

The uPC79N05H requires only a few external capacitors for stable operation. The input voltage must be higher than -5V for proper regulation. The TO-220 package allows for easy heatsinking to dissipate heat generated by the regulator. The regulator's internal protection features make it a robust and reliable choice for negative voltage regulation. It's a drop-in replacement for other 7905 series regulators.