VN21-12-E

Product Overview

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

Specifications

• Input Voltage Range: 4.5V to 24V
• Output Voltage Range: 1.2V to 20V
• Output Current: 1A
• Dropout Voltage: 0.3V at 1A
• Line Regulation: ±0.02%/V
• Load Regulation: ±0.04%/A
• Quiescent Current: 5mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The VN21-12-E 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 regulation: The VN21-12-E ensures a stable output voltage within a narrow tolerance range, providing reliable power supply for electronic devices.
• Low dropout voltage: With a dropout voltage of only 0.3V at 1A, this voltage regulator minimizes power dissipation and improves efficiency.
• Compact size: The TO-220 package allows for easy integration into various electronic circuits and systems.

Advantages and Disadvantages

Advantages: - High precision regulation ensures stable output voltage. - Low dropout voltage minimizes power dissipation. - Compact size allows for easy integration.

Disadvantages: - Limited output current capacity (1A). - Requires external components for proper operation.

Working Principles

The VN21-12-E is an integrated circuit voltage regulator that uses a feedback mechanism to maintain a constant output voltage. It compares the actual output voltage with a reference voltage and adjusts the internal circuitry to regulate the output within the specified range. The dropout voltage is minimized by utilizing advanced semiconductor technology, resulting in improved efficiency.

Detailed Application Field Plans

The VN21-12-E voltage regulator finds applications in various electronic systems, including:

1. Power supplies for microcontrollers and other digital ICs.
2. Battery-powered devices requiring stable voltage levels.
3. Automotive electronics, such as car audio systems and dashboard displays.
4. Industrial control systems and automation equipment.
5. Portable consumer electronics, such as smartphones and tablets.

Detailed and Complete Alternative Models

1. VN21-05-E: Similar to VN21-12-E but with a lower output current capacity (500mA).
2. VN21-24-E: Similar to VN21-12-E but with a higher output current capacity (2A).
3. VN21-15-E: Similar to VN21-12-E but with a different output voltage range (1.5V to 15V).

These alternative models provide flexibility in choosing the appropriate voltage regulator based on specific application requirements.

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