The UTC79D05L-TN3-R is a negative voltage regulator manufactured by Unisonic Technologies Co., Ltd (UTC). This regulator provides a fixed -5V output voltage for various electronic circuits. It is designed for applications requiring a regulated negative power supply. The device offers features such as short circuit protection and thermal overload protection.

Applications

• Operational amplifier power supplies
• Data acquisition systems
• Instrumentation equipment
• Linear power supplies
• Negative voltage bias for semiconductor devices

Features

• Fixed -5V output voltage
• Internal short-circuit current limiting
• Thermal overload protection
• Output transistor safe-area compensation
• Available in various packages (e.g., TO-92, SOT-89)

Benefits

• Provides a stable and accurate -5V power supply for sensitive electronic components.
• Protects against short circuits and thermal overload, enhancing system reliability.
• Simplifies circuit design with its fixed output voltage.
• Reduces external component count.
• Suitable for various applications requiring a negative voltage supply.

Additional Details

The UTC79D05L-TN3-R is typically available in a TO-92 package. It has an input voltage range from -7V to -25V. The output current is typically 100mA. The device includes internal short-circuit current limiting to protect the regulator and the load from damage due to short circuits. The thermal overload protection disables the regulator when its junction temperature exceeds a certain threshold. An output capacitor is generally required for stability, its value depending on the application and load characteristics. Proper heatsinking may be necessary depending on the load current and ambient temperature. The "TN3-R" suffix likely refers to the specific package type and tape & reel packaging. Applications for -5V voltage regulators often involve older logic circuits and analog circuits that require a negative supply rail. It is a complementary part to the 7805 positive voltage regulator.