AS7805ATF-E1

Product Overview

• Category: Voltage Regulator
• Use: To regulate and stabilize voltage in electronic circuits
• Characteristics: High precision, low dropout, fixed output voltage
• Package: TO-220F
• Essence: Linear regulator
• Packaging/Quantity: Tape and reel, 2,500 units per reel

Specifications

• Input Voltage Range: 7V to 35V
• Output Voltage: 5V
• Output Current: Up to 1A
• Dropout Voltage: 2V (maximum)
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Quiescent Current: 5mA (typical)

Pin Configuration

The AS7805ATF-E1 has three pins:

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

Functional Features

• High Precision: The AS7805ATF-E1 offers precise voltage regulation, ensuring stable and accurate output.
• Low Dropout: With a maximum dropout voltage of 2V, it can maintain regulation even when the input voltage is close to the desired output voltage.
• Fixed Output Voltage: The device provides a fixed output voltage of 5V, suitable for various applications.
• Thermal Shutdown Protection: It includes built-in thermal shutdown protection to prevent damage due to excessive heat.

Advantages and Disadvantages

Advantages: - High precision voltage regulation - Low dropout voltage - Fixed output voltage - Thermal shutdown protection

Disadvantages: - Limited output current capacity (up to 1A)

Working Principles

The AS7805ATF-E1 is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output. The device dissipates excess voltage as heat, which is why it has a maximum dropout voltage specification.

Detailed Application Field Plans

The AS7805ATF-E1 is commonly used in various electronic devices and circuits, including:

1. Power supplies for microcontrollers and other digital ICs.
2. Battery-powered devices requiring a stable 5V supply.
3. Audio amplifiers and preamplifiers.
4. Industrial control systems.
5. Automotive electronics.

Detailed and Complete Alternative Models

1. LM7805: A widely used alternative from Texas Instruments.
2. NJM7805: Another popular option from New Japan Radio Co., Ltd.
3. MC7805: An alternative from ON Semiconductor.

These alternatives offer similar specifications and functionality to the AS7805ATF-E1 and can be used interchangeably in most applications.

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