The UTC79L05L-AB3-R is a three-terminal negative voltage regulator manufactured by UTC (Unisonic Technologies Co., Ltd.). This device is designed to provide a stable -5V output voltage with a low output current capability, typically around 100mA. It's commonly used in various electronic circuits to regulate voltage for sensitive components.

Applications

• Low-Current Negative Voltage Supply: Provides a stable -5V supply for op-amps, comparators, and other analog circuits.
• Small Electronic Devices: Used in portable devices requiring a negative voltage rail.
• Battery-Powered Equipment: Provides a regulated negative voltage for sensitive circuits.
• Control Circuits: Used in control systems for generating a stable negative voltage reference.
• Signal Conditioning: Provides negative supply voltage for analog signal conditioning circuits.

Features

• Fixed Output Voltage (-5V): Provides a stable and precise -5V output voltage.
• Low Output Current (100mA): Designed for low-current applications.
• Internal Short-Circuit Current Limiting: Protects the regulator from damage due to short circuits.
• Thermal Overload Protection: Shuts down the regulator if the temperature exceeds a safe limit.
• TO-92 Package: Comes in a small TO-92 package for easy integration into circuits.

Benefits

• Stable Output Voltage: Provides a consistent and reliable -5V output.
• Simple to Use: Requires minimal external components for operation.
• Overload Protection: Protects the regulator and other components from damage.
• Compact Size: Small package allows for integration into space-constrained applications.
• Cost-Effective Solution: Offers a low-cost solution for negative voltage regulation.

The UTC79L05L-AB3-R features internal current limiting and thermal shutdown protection to prevent damage from overloads and excessive heat. It requires only a few external components for proper operation, typically input and output capacitors to improve stability. The TO-92 package is suitable for through-hole mounting. This regulator is ideal for applications where a small, simple, and cost-effective negative voltage regulator is needed. Input voltage should typically be a few volts more negative than -5V to ensure proper regulation.