VRE305AS - English Editing Encyclopedia Entry

Product Overview

Category: Electronic Component
Use: Voltage Regulator
Characteristics: High precision, low dropout voltage
Package: TO-220
Essence: Linear regulator
Packaging/Quantity: Bulk packaging, 100 units per box

Specifications

• Input Voltage Range: 4.5V to 30V
• Output Voltage Range: 1.2V to 28V
• Dropout Voltage: 0.3V at 1A load current
• Output Current: Up to 1.5A
• Line Regulation: ±0.02% typical
• Load Regulation: ±0.1% typical
• Quiescent Current: 5mA typical
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The VRE305AS voltage regulator has three pins:

1. Input (VIN): This pin is used to connect the input voltage source.
2. Output (VOUT): This pin provides the regulated output voltage.
3. Ground (GND): This pin is connected to the ground reference.

Functional Features

• High precision voltage regulation
• Low dropout voltage for efficient power conversion
• Overcurrent and thermal protection
• Short-circuit protection
• Fast transient response
• Low quiescent current for power-saving applications

Advantages and Disadvantages

Advantages: - High precision voltage regulation ensures stable output. - Low dropout voltage minimizes power dissipation. - Overcurrent and thermal protection enhance reliability. - Fast transient response enables quick load changes. - Suitable for power-saving applications due to low quiescent current.

Disadvantages: - Limited output current capacity (up to 1.5A). - Requires external components for stability and filtering.

Working Principles

The VRE305AS is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage. The dropout voltage is minimized to ensure efficient power conversion.

Detailed Application Field Plans

The VRE305AS voltage regulator finds applications in various fields, including:

1. Consumer Electronics: Power supply for audio/video equipment, gaming consoles, and portable devices.
2. Automotive: Voltage regulation for automotive electronics, such as infotainment systems and lighting modules.
3. Industrial: Power management in industrial automation, control systems, and instrumentation.
4. Telecommunications: Voltage regulation for telecom infrastructure, base stations, and network equipment.
5. Renewable Energy: Power conditioning in solar panels, wind turbines, and energy storage systems.

Detailed and Complete Alternative Models

1. LM317: Adjustable voltage regulator with similar specifications.
2. L7805CV: Fixed 5V voltage regulator suitable for low-power applications.
3. LT1084: High current adjustable voltage regulator with low dropout voltage.
4. LM1117: Low dropout voltage regulator available in various fixed output voltages.
5. TPS7A4700: Ultra-low noise, high PSRR voltage regulator for sensitive applications.

Note: This is not an exhaustive list of alternative models, but provides a range of options with different features and capabilities.

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