AS78L12RTR-G1

Product Overview

• Category: Voltage Regulator
• Use: To regulate and stabilize voltage in electronic circuits
• Characteristics:
  • Low dropout voltage
  • High output current capability
  • Thermal shutdown protection
• Package: TO-252-2 (DPAK)
• Essence: Linear voltage regulator
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Input Voltage Range: 14V to 35V
• Output Voltage: 12V
• Output Current: Up to 100mA
• Dropout Voltage: 2V (maximum)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The AS78L12RTR-G1 has three pins:

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

Functional Features

• Voltage Regulation: The AS78L12RTR-G1 maintains a constant output voltage of 12V, regardless of variations in the input voltage or load conditions.
• Low Dropout Voltage: With a maximum dropout voltage of 2V, this regulator can operate efficiently even when the input voltage is close to the desired output voltage.
• High Output Current Capability: Capable of supplying up to 100mA of current to the load.
• Thermal Shutdown Protection: In case of excessive temperature, the regulator shuts down to prevent damage.

Advantages and Disadvantages

Advantages: - Simple and easy to use. - Provides stable and regulated voltage output. - Suitable for low-power applications. - Offers thermal protection.

Disadvantages: - Limited output current capability. - Requires an input voltage higher than the desired output voltage.

Working Principles

The AS78L12RTR-G1 is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a constant output voltage.

Detailed Application Field Plans

The AS78L12RTR-G1 is commonly used in various electronic devices and circuits, including:

1. Power supplies for microcontrollers and other low-power digital circuits.
2. Battery-powered devices requiring a stable 12V supply.
3. Automotive applications, such as dashboard displays and lighting systems.
4. Industrial control systems and instrumentation.
5. Audio amplifiers and preamplifiers.

Detailed and Complete Alternative Models

1. LM78L12: Similar characteristics and package, manufactured by Texas Instruments.
2. MC78L12: Equivalent voltage regulator, produced by ON Semiconductor.
3. UA78L12: Alternative option from Fairchild Semiconductor.

These alternative models offer similar functionality and can be used as replacements for the AS78L12RTR-G1 in various applications.

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