MC7805ABT

Product Overview

Category

MC7805ABT belongs to the category of voltage regulators.

Use

It is commonly used to regulate and stabilize voltage in electronic circuits.

Characteristics

• Input Voltage Range: 7V to 35V
• Output Voltage: 5V
• Maximum Output Current: 1A
• Low Dropout Voltage: 2V
• Thermal Overload Protection
• Short Circuit Protection

Package

MC7805ABT comes in a TO-220 package, which is a widely used through-hole package for power semiconductors.

Essence

The essence of MC7805ABT lies in its ability to provide a stable and regulated 5V output voltage from a wide range of input voltages.

Packaging/Quantity

MC7805ABT is typically available in reels or tubes, with quantities varying depending on the supplier. Common packaging options include 1000 units per reel or tube.

Specifications

• Input Voltage Range: 7V to 35V
• Output Voltage: 5V
• Output Current: Up to 1A
• Dropout Voltage: 2V (maximum)
• Line Regulation: 0.04% (typical)
• Load Regulation: 0.1% (typical)
• Operating Temperature Range: -40°C to +125°C
• Package Type: TO-220

Detailed Pin Configuration

MC7805ABT has three pins:

1. Input (Pin 1): This pin is connected to the input voltage source.
2. Ground (Pin 2): This pin is connected to the ground reference.
3. Output (Pin 3): This pin provides the regulated 5V output voltage.

Functional Features

• Voltage Regulation: MC7805ABT ensures a constant 5V output voltage regardless of variations in the input voltage.
• Thermal Overload Protection: The regulator has built-in protection against excessive heat, preventing damage to the device.
• Short Circuit Protection: MC7805ABT is designed to withstand short circuits without causing any harm.

Advantages and Disadvantages

Advantages

• Easy to use and implement in various electronic circuits.
• Provides a stable and regulated 5V output.
• Offers thermal and short circuit protection.

Disadvantages

• Dropout voltage of 2V may limit its use in low voltage applications.
• Maximum output current of 1A may not be sufficient for high-power applications.

Working Principles

MC7805ABT operates based on the principle of linear voltage regulation. It uses a series pass transistor to regulate the output voltage by dissipating excess energy as heat. By comparing the output voltage with a reference voltage, the regulator adjusts the pass transistor to maintain a constant 5V output.

Detailed Application Field Plans

MC7805ABT finds extensive application in various electronic devices and systems, including but not limited to: - Power supplies for microcontrollers and digital integrated circuits. - Battery charging circuits. - Audio amplifiers. - LED lighting systems. - Automotive electronics.

Detailed and Complete Alternative Models

Some alternative models that can be used as substitutes for MC7805ABT include: - LM7805: A widely used voltage regulator with similar specifications and pin configuration. - UA7805: Another popular choice for regulating 5V voltage in electronic circuits. - L78M05: A low dropout voltage regulator suitable for low voltage applications.

These alternatives offer similar functionality and can be used interchangeably depending on availability and specific requirements.

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