L7808ABV-DG

Product Overview

• Category: Voltage Regulator
• Use: To regulate and stabilize the output voltage in electronic circuits
• Characteristics:
  • Fixed output voltage of 8V
  • Maximum output current of 1.5A
  • Low dropout voltage
  • Thermal shutdown protection
• Package: TO-220
• Essence: Integrated circuit (IC)
• Packaging/Quantity: Tape and reel, 2,500 units per reel

Specifications

• Input Voltage Range: 10V to 35V
• Output Voltage: 8V
• Output Current: Up to 1.5A
• Dropout Voltage: 2V (typical)
• Quiescent Current: 6mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L7808ABV-DG has three pins:

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

Functional Features

• Regulates the output voltage to a fixed 8V regardless of input variations.
• Provides thermal shutdown protection to prevent overheating.
• Low dropout voltage ensures efficient regulation even with low input-output differentials.
• Suitable for use in various electronic applications requiring a stable 8V power supply.

Advantages and Disadvantages

Advantages: - Fixed output voltage simplifies circuit design. - High output current capability (up to 1.5A) allows for powering multiple components. - Thermal shutdown protection enhances safety and reliability. - Wide operating temperature range enables usage in extreme environments.

Disadvantages: - Fixed output voltage limits flexibility in applications requiring different voltages. - Dropout voltage may cause power dissipation and affect efficiency in low input-output differential scenarios.

Working Principles

The L7808ABV-DG is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the reference voltage (internal to the IC) with the feedback voltage from the output, adjusting the pass transistor's resistance to maintain a constant 8V output. The thermal shutdown protection ensures that the device shuts down if the temperature exceeds a safe limit, preventing damage.

Detailed Application Field Plans

The L7808ABV-DG can be used in various electronic applications, including but not limited to: - Power supplies for microcontrollers, sensors, and other digital components - Battery charging circuits - Audio amplifiers - Motor control circuits - LED lighting systems

Detailed and Complete Alternative Models

Some alternative models to the L7808ABV-DG include: - LM7808: Similar specifications and pin configuration, available in different packages - MC7808: Comparable performance, available in TO-220 package - UA7808: Equivalent functionality, offered in various package options

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