VHF25-12IO7 Product Encyclopedia Entry

Introduction

The VHF25-12IO7 is a versatile electronic component that belongs to the category of voltage regulators. This entry provides an overview of its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Voltage Regulator
• Use: The VHF25-12IO7 is used to regulate voltage in electronic circuits, ensuring a stable output voltage despite fluctuations in input voltage or load conditions.
• Characteristics: It exhibits high precision, low dropout voltage, and thermal shutdown protection.
• Package: The VHF25-12IO7 is available in a compact and heat-dissipating TO-220 package.
• Essence: Its essence lies in providing reliable voltage regulation for various electronic applications.
• Packaging/Quantity: Typically packaged individually, the quantity may vary based on supplier and customer requirements.

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 1.25V to 20V
• Output Current: 2.5A
• Dropout Voltage: 0.5V at 2.5A
• Operating Temperature Range: -40°C to 125°C
• Thermal Resistance (Junction to Case): 5°C/W

Detailed Pin Configuration

The VHF25-12IO7 has a standard three-pin configuration: 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: The VHF25-12IO7 offers precise voltage regulation, making it suitable for sensitive electronic components.
• Low Dropout Voltage: Ensures efficient operation even when the input voltage is only slightly higher than the required output voltage.
• Thermal Shutdown Protection: Protects the regulator from overheating, enhancing its reliability in demanding environments.

Advantages and Disadvantages

Advantages

• Reliable voltage regulation
• Compact form factor
• Thermal protection for enhanced durability

Disadvantages

• Limited maximum output current compared to higher-rated models
• Higher dropout voltage compared to some advanced regulators

Working Principles

The VHF25-12IO7 operates by comparing the output voltage to a reference voltage and adjusting the pass transistor to maintain a constant output voltage. When the input voltage or load changes, the regulator responds to ensure a stable output voltage.

Detailed Application Field Plans

The VHF25-12IO7 finds extensive use in various applications, including: - Power supplies for consumer electronics - Automotive electronics - Industrial control systems - Battery charging circuits - LED lighting systems

Detailed and Complete Alternative Models

For applications requiring different specifications or performance characteristics, alternative models to consider include: - LM317: A popular adjustable voltage regulator with a wide input voltage range. - L7805: Fixed 5V regulator suitable for low-power applications. - LM2940: Low dropout regulator with higher output current capability.

In conclusion, the VHF25-12IO7 is a reliable voltage regulator with precise regulation, thermal protection, and a compact form factor, making it suitable for a wide range of electronic applications.

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