TS78L12CT A3G

Product Overview

• Category: Integrated Circuit
• Use: Voltage Regulator
• Characteristics: Low Dropout, Positive Fixed Voltage Regulator
• Package: TO-220, 3-Pin
• Essence: Linear Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2,500 units per reel

Specifications

• Input Voltage: Up to 35V
• Output Voltage: 12V
• Output Current: Up to 100mA
• Dropout Voltage: 2V (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The TS78L12CT A3G is a 3-pin device with the following pin configuration:

1. Input (VIN): Connects to the input voltage source.
2. Ground (GND): Common ground reference.
3. Output (VOUT): Provides the regulated output voltage.

Functional Features

• Voltage Regulation: The TS78L12CT A3G provides a fixed 12V output voltage, ensuring a stable power supply for connected devices.
• Low Dropout: With a dropout voltage of only 2V, this regulator can operate efficiently even when the input voltage is close to the desired output voltage.
• Short Circuit Protection: The device includes built-in protection against short circuits, preventing damage to the regulator and connected components.
• Thermal Shutdown: In case of excessive temperature, the regulator automatically shuts down to prevent overheating and potential damage.

Advantages and Disadvantages

Advantages: - Simple and easy-to-use voltage regulator solution. - Compact TO-220 package allows for easy integration into various electronic designs. - Low dropout voltage ensures efficient operation. - Built-in protection features enhance reliability.

Disadvantages: - Limited output current capability (up to 100mA). - Fixed output voltage may not be suitable for all applications requiring variable voltages.

Working Principles

The TS78L12CT A3G is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage, adjusting the pass transistor's resistance to maintain a constant output voltage. The regulator dissipates excess voltage as heat, which is why it has a dropout voltage requirement.

Detailed Application Field Plans

The TS78L12CT A3G is commonly used in various electronic devices and applications, including but not limited to:

1. Power Supply Units: Provides regulated voltage for microcontrollers, sensors, and other components.
2. Automotive Electronics: Ensures stable power supply for automotive modules and subsystems.
3. Industrial Control Systems: Used in control panels, PLCs, and other industrial automation equipment.
4. Consumer Electronics: Integrated into audio/video equipment, home appliances, and portable devices.
5. Telecommunications: Used in communication systems, routers, and network equipment.

Detailed and Complete Alternative Models

1. LM7805: Positive voltage regulator with a fixed 5V output.
2. LM317: Adjustable positive voltage regulator with a wide range of output voltage options.
3. LT1084: High current, adjustable positive voltage regulator with low dropout voltage.
4. LDO50V: Low dropout voltage regulator capable of handling up to 50V input voltage.

These alternative models offer different features and specifications, allowing users to choose the most suitable voltage regulator for their specific application requirements.

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