VRE306AS - English Editing Encyclopedia Entry

Product Overview

Category: Electronic Component
Use: Voltage Regulator
Characteristics: High precision, low dropout voltage
Package: TO-220
Essence: Integrated circuit voltage regulator
Packaging/Quantity: Tape and reel, 1000 units per reel

Specifications

• Input Voltage Range: 4.5V to 18V
• Output Voltage Range: 1.2V to 15V
• Dropout Voltage: 0.3V at 1A load current
• Output Current: Up to 3A
• Line Regulation: ±0.02%/V
• Load Regulation: ±0.04%/A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The VRE306AS voltage regulator has a standard TO-220 package with three pins:

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

Functional Features

• High precision regulation: The VRE306AS ensures a stable output voltage within a tight tolerance range, minimizing voltage fluctuations.
• Low dropout voltage: With a dropout voltage of only 0.3V at 1A load current, this regulator is highly efficient and suitable for low-power applications.
• Overcurrent protection: The device incorporates overcurrent protection to safeguard against excessive current flow, preventing damage to connected components.
• Thermal shutdown: In case of excessive temperature rise, the regulator automatically shuts down to prevent overheating and potential damage.

Advantages and Disadvantages

Advantages: - High precision regulation ensures stable output voltage. - Low dropout voltage improves efficiency. - Overcurrent protection enhances system reliability. - Thermal shutdown prevents overheating.

Disadvantages: - Limited output current capacity (up to 3A). - Requires external components for stability and filtering.

Working Principles

The VRE306AS is an integrated circuit voltage regulator that operates based on the principle of feedback control. It compares the output voltage with a reference voltage and adjusts the internal circuitry to maintain a constant output voltage, regardless of input voltage variations or load changes. The device utilizes a series pass transistor to regulate the output voltage by dissipating excess energy as heat.

Detailed Application Field Plans

The VRE306AS voltage regulator finds applications in various electronic systems, including but not limited to: 1. Power supplies for microcontrollers and digital circuits. 2. Battery-powered devices requiring stable voltage levels. 3. Automotive electronics, such as infotainment systems and engine control units. 4. Industrial automation equipment. 5. Communication systems and networking devices.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable voltage regulator with similar specifications and pin configuration.
2. L7805: Fixed 5V voltage regulator commonly used in low-power applications.
3. LT1086: High-current, low dropout voltage regulator suitable for demanding applications.
4. LM1117: Low dropout voltage regulator available in various fixed output voltages.
5. TPS7A47: Ultra-low noise, high PSRR voltage regulator for sensitive analog circuits.

Note: This list is not exhaustive and serves as a starting point for alternative models.

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