TS79L05CT A3G

Product Overview

• Category: Integrated Circuit
• Use: Voltage Regulator
• Characteristics: Low Dropout, Negative Voltage Regulator
• Package: TO-220, SOT-89
• Essence: Linear Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage: -7V to -30V
• Output Voltage: -5V
• Output Current: 100mA
• Dropout Voltage: 1.7V (typical)
• Quiescent Current: 4mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TS79L05CT A3G has a standard three-pin configuration:

1. Input Pin (IN): Connects to the input voltage source.
2. Ground Pin (GND): Connected to the ground reference.
3. Output Pin (OUT): Provides the regulated -5V output.

Functional Features

• Low Dropout: The TS79L05CT A3G has a low dropout voltage of 1.7V, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• Negative Voltage Regulation: This voltage regulator provides a stable -5V output voltage, suitable for various applications requiring a negative power supply.
• Thermal Overload Protection: The device incorporates thermal shutdown circuitry to protect against excessive temperature, ensuring safe operation.
• Short Circuit Protection: The TS79L05CT A3G includes built-in current limiting and short circuit protection, safeguarding the device and the connected circuitry.

Advantages and Disadvantages

Advantages: - Low dropout voltage enables efficient regulation. - Compact package options (TO-220, SOT-89) provide flexibility in design. - Thermal and short circuit protection enhance reliability.

Disadvantages: - Limited output current capability (100mA). - Negative voltage output may not be suitable for all applications.

Working Principles

The TS79L05CT A3G is a linear voltage regulator that uses a negative feedback mechanism to maintain a stable -5V output voltage. It employs a pass transistor to regulate the output voltage by adjusting the resistance between the input and output pins. The device compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The TS79L05CT A3G can be used in various applications requiring a stable -5V power supply. Some common application fields include:

1. Audio Amplifiers: Provides a negative power supply for audio amplifiers, ensuring proper signal amplification.
2. Industrial Control Systems: Used in industrial control systems to provide a reliable negative voltage source for analog circuitry.
3. Instrumentation: Suitable for powering instrumentation circuits that require a negative voltage reference.
4. Automotive Electronics: Can be utilized in automotive electronics for negative voltage requirements in specific subsystems.

Detailed and Complete Alternative Models

1. LM79L05: Similar negative voltage regulator with a TO-92 package.
2. MC79L05: Negative voltage regulator with a TO-220 package and higher output current capability.
3. LP2950CZ-5.0: Low dropout negative voltage regulator with a TO-92 package.

(Note: This list is not exhaustive and other alternative models may exist.)

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