VRE302LD

Product Overview

Category: Electronic Component
Use: Voltage Regulator
Characteristics: Low Dropout, Linear Regulator
Package: TO-220
Essence: A voltage regulator that provides a stable output voltage despite fluctuations in input voltage or load variations.
Packaging/Quantity: Individually packaged, typically sold in packs of 10.

Specifications

• Input Voltage Range: 2.5V to 36V
• Output Voltage Range: 1.25V to 35V
• Maximum Output Current: 3A
• Dropout Voltage: 0.6V at 3A
• Line Regulation: ±0.02%
• Load Regulation: ±0.1%
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The VRE302LD 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

• Low dropout voltage ensures efficient regulation even with low input-output voltage differentials.
• Excellent line and load regulation characteristics provide a stable output voltage under varying conditions.
• Built-in thermal shutdown protection prevents damage due to excessive temperature.
• Short-circuit protection safeguards the regulator and connected components from damage.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications. - High output current capability suits power-hungry devices. - Low dropout voltage minimizes power dissipation. - Compact TO-220 package facilitates easy integration into various circuits.

Disadvantages: - Requires external capacitors for stability. - Higher cost compared to non-linear regulators. - Limited output voltage range compared to switching regulators.

Working Principles

The VRE302LD is a linear voltage regulator that utilizes a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage obtained from a voltage divider network. The pass transistor adjusts its resistance to maintain a constant output voltage, compensating for changes in input voltage and load variations.

Detailed Application Field Plans

The VRE302LD finds applications in various fields, including:

1. Power Supply Units: Used as a voltage regulator in power supply units for electronic devices.
2. Automotive Electronics: Provides stable voltage for automotive electronics, such as infotainment systems and engine control units.
3. Industrial Control Systems: Ensures consistent voltage levels in industrial control systems, improving their reliability.
4. Telecommunications: Used in telecommunications equipment to regulate voltages and ensure proper functioning.
5. Consumer Electronics: Suitable for use in consumer electronics like audio amplifiers, DVD players, and set-top boxes.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable linear voltage regulator with similar specifications.
2. L7805CV: Fixed 5V linear voltage regulator commonly used in electronic circuits.
3. LT1083CP: High current linear voltage regulator with adjustable output voltage.

These alternative models offer similar functionality and can be considered based on specific requirements.

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