L78L05ABD13TR

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low-dropout, 5V output voltage
• Package: TO-252 (DPAK)
• Essence: Linear voltage regulator
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Input Voltage Range: 7V to 35V
• Output Voltage: 5V
• Output Current: 100mA
• Dropout Voltage: 2V
• Quiescent Current: 4.5mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L78L05ABD13TR has three pins: 1. Input (IN): Connects to the input voltage source. 2. Ground (GND): Connected to the ground reference. 3. Output (OUT): Provides the regulated 5V output.

Functional Features

• Voltage Regulation: The L78L05ABD13TR regulates the input voltage to a stable 5V output.
• Low Dropout: It has a low dropout voltage of 2V, allowing it to operate efficiently even with small voltage differentials.
• Thermal Protection: The IC incorporates thermal shutdown circuitry to prevent damage due to excessive heat.
• Short Circuit Protection: It includes current limiting and short circuit protection to safeguard against overloads.

Advantages and Disadvantages

Advantages: - Compact Size: The TO-252 package offers a small form factor, making it suitable for space-constrained applications. - Easy Integration: The IC requires minimal external components, simplifying the design process. - Stable Output: It provides a stable 5V output voltage, ensuring reliable operation of connected devices.

Disadvantages: - Limited Output Current: With a maximum output current of 100mA, it may not be suitable for high-power applications. - Dropout Voltage: The 2V dropout voltage can limit its efficiency in low input voltage scenarios.

Working Principles

The L78L05ABD13TR is a linear voltage regulator that uses a 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 5V output. The dropout voltage is minimized by using a low-resistance pass element.

Detailed Application Field Plans

The L78L05ABD13TR is commonly used in various electronic devices and systems, including: 1. Power Supplies: It is utilized in low-power applications where a stable 5V supply is required, such as microcontrollers, sensors, and digital circuits. 2. Automotive Electronics: The IC finds application in automotive systems, providing regulated power to control units, sensors, and other components. 3. Industrial Control Systems: It is employed in industrial automation and control systems to ensure reliable and stable power for various modules and devices.

Detailed and Complete Alternative Models

1. LM7805: A widely used linear voltage regulator with similar specifications and pin configuration.
2. MC78L05: Another popular alternative offering a 5V output voltage and low dropout characteristics.
3. AMS1117-5.0: A low-dropout voltage regulator with a fixed 5V output and higher output current capability.

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