LM78L15ACMX/NOPB

Product Overview

• Category: Linear Voltage Regulator
• Use: Voltage regulation in electronic circuits
• Characteristics: Low dropout voltage, high accuracy, compact package
• Package: SOT-223
• Essence: Integrated circuit for regulating voltage
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Input Voltage: Up to 35V
• Output Voltage: 15V
• Output Current: 100mA
• Dropout Voltage: 2V (maximum)
• Line Regulation: 0.04% (typical)
• Load Regulation: 0.1% (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM78L15ACMX/NOPB has three pins:

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

Functional Features

• Voltage Regulation: The LM78L15ACMX/NOPB regulates the input voltage to a stable 15V output.
• Low Dropout Voltage: With a maximum dropout voltage of 2V, it can regulate even when the input voltage is close to the desired output voltage.
• High Accuracy: The device provides precise voltage regulation with low line and load regulation.
• Thermal Shutdown Protection: It includes built-in thermal shutdown protection to prevent overheating.

Advantages and Disadvantages

Advantages: - Compact package allows for space-saving designs. - High accuracy ensures reliable voltage regulation. - Low dropout voltage enables efficient operation. - Thermal shutdown protection enhances safety.

Disadvantages: - Limited output current (100mA) may not be suitable for high-power applications. - SOT-223 package may require additional heat sinking in some cases.

Working Principles

The LM78L15ACMX/NOPB is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The LM78L15ACMX/NOPB can be used in various electronic circuits requiring a regulated 15V power supply. Some common application fields include:

1. Consumer Electronics: Used in audio amplifiers, DVD players, and set-top boxes.
2. Automotive: Suitable for powering sensors, actuators, and control modules.
3. Industrial Control Systems: Provides regulated voltage for PLCs, motor drives, and instrumentation equipment.
4. Telecommunications: Used in routers, switches, and communication devices.
5. Medical Devices: Suitable for powering medical instruments and diagnostic equipment.

Detailed and Complete Alternative Models

1. Texas Instruments LM7815: Similar to LM78L15ACMX/NOPB but with higher output current capability (up to 1A).
2. ON Semiconductor MC78L15ACP: Comparable voltage regulator with a different package (TO-92).

These alternative models offer similar functionality and can be considered as substitutes based on specific requirements.

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