The CJ79L05-TA is a negative voltage regulator manufactured by Jiangsu Changjiang Electronics Technology Co., Ltd (JCET). It is part of the 79Lxx series of linear regulators, known for providing a stable negative output voltage with a low dropout voltage.

Applications

• Negative Voltage Power Supplies: Provides a regulated negative voltage for various electronic circuits.
• Dual Power Supply Systems: Used in conjunction with positive voltage regulators to create a dual-rail power supply (+V and -V).
• Instrumentation Amplifiers: Supplies the negative voltage required for the operation of instrumentation amplifiers.
• Op-Amp Circuits: Providing the negative supply voltage needed for operational amplifiers.
• Data Acquisition Systems: Powering analog and digital components requiring a negative supply.

Features

• Fixed Output Voltage: Provides a stable -5V output voltage.
• Low Dropout Voltage: Ensures regulation even with a small difference between input and output voltages.
• Internal Short-Circuit Current Limiting: Protects the regulator from damage due to short circuits.
• Thermal Overload Protection: Shuts down the regulator if the junction temperature exceeds a safe limit.
• TO-92 Package: Small and easy to mount in through-hole applications.

Benefits

• Stable Negative Voltage: Ensures reliable operation of circuits requiring a negative supply.
• Protection Against Overload: Prevents damage to the regulator and connected components.
• Easy to Use: Simple to incorporate into circuit designs with minimal external components.
• Compact Size: Suitable for space-constrained applications.
• Cost-Effective: Provides a reliable negative voltage regulation solution at a reasonable cost.

Additional Details

The CJ79L05-TA is commonly used in applications where a stable -5V supply is required. The regulator is designed to provide a fixed output voltage, typically -5V with a specified tolerance. It has internal protection features to prevent damage from short circuits and thermal overloads.

When using the CJ79L05-TA, it is important to ensure that the input voltage remains within the specified range and that the output current does not exceed the regulator's maximum rating. A small bypass capacitor is typically used at the input and output to improve stability and reduce noise.