L7805CT

Product Overview

• Category: Linear Voltage Regulator
• Use: Voltage regulation in electronic circuits
• Characteristics: Fixed output voltage of 5V, maximum output current of 1A, low dropout voltage, thermal overload protection
• Package: TO-220
• Essence: Integrated circuit (IC) for regulating voltage
• Packaging/Quantity: Available in tubes or reels, quantity depends on supplier

Specifications

• Input Voltage: Up to 35V
• Output Voltage: 5V
• Output Current: Up to 1A
• Dropout Voltage: 2V (typical)
• Operating Temperature Range: 0°C to 125°C
• Line Regulation: 55mV (typical)
• Load Regulation: 60mV (typical)

Pin Configuration

The L7805CT 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 output voltage.

Functional Features

• Provides a stable and regulated 5V output voltage.
• Low dropout voltage ensures efficient operation even with small input-output voltage differentials.
• Thermal overload protection prevents damage due to excessive heat.
• Short-circuit protection safeguards against output short circuits.

Advantages and Disadvantages

Advantages: - Simple and easy to use. - Cost-effective solution for voltage regulation. - Wide availability and compatibility with various electronic circuits.

Disadvantages: - Limited output current capacity (up to 1A). - Requires external capacitors for stability.

Working Principles

The L7805CT is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the output voltage to a reference voltage and adjusts the pass transistor accordingly to maintain a stable 5V output.

Detailed Application Field Plans

The L7805CT is commonly used in various electronic applications, including:

1. Power supplies for microcontrollers and other digital ICs.
2. Battery charging circuits.
3. Audio amplifiers and preamplifiers.
4. LED lighting systems.
5. Automotive electronics.

Detailed and Complete Alternative Models

• LM317: Adjustable linear voltage regulator.
• LM7806: Fixed 6V linear voltage regulator.
• LM1117: Low dropout voltage regulator.

These alternative models offer similar functionality but with different output voltages or additional features.

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