SG7905AK

Product Overview

Category

SG7905AK belongs to the category of voltage regulators.

Use

It is primarily used for regulating and stabilizing voltage in electronic circuits.

Characteristics

• Voltage regulation capability
• High efficiency
• Low dropout voltage
• Thermal shutdown protection

Package

SG7905AK comes in a standard TO-220 package.

Essence

The essence of SG7905AK lies in its ability to provide stable and regulated voltage output.

Packaging/Quantity

Each package of SG7905AK contains one voltage regulator.

Specifications

• Input Voltage Range: -7V to -25V
• Output Voltage: -5V
• Maximum Output Current: 1A
• Dropout Voltage: 2V (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

SG7905AK has three pins:

1. Input Pin (Pin 1): This pin is connected to the input voltage source.
2. Ground Pin (Pin 2): This pin is connected to the ground or common reference point.
3. Output Pin (Pin 3): This pin provides the regulated -5V output.

Functional Features

• Voltage Regulation: SG7905AK ensures a constant -5V output regardless of input voltage fluctuations.
• Thermal Shutdown Protection: It incorporates a thermal shutdown mechanism to prevent overheating and damage.
• Short Circuit Protection: The device is designed to withstand short circuit conditions without any harm.

Advantages and Disadvantages

Advantages

• Reliable voltage regulation
• High efficiency
• Compact size
• Easy to use

Disadvantages

• Limited output current capacity
• Requires external components for proper operation

Working Principles

SG7905AK operates on the principle of linear voltage regulation. It uses a series pass transistor to regulate the output voltage based on the difference between the input and desired output voltage.

Detailed Application Field Plans

SG7905AK finds applications in various electronic devices and circuits, including: - Power supplies - Audio amplifiers - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to SG7905AK include: - LM7905: A widely used negative voltage regulator with similar specifications. - MC7905: Another negative voltage regulator offering comparable performance. - LT1084: A high-current, adjustable negative voltage regulator suitable for demanding applications.

These alternative models provide similar functionality and can be used as substitutes depending on specific requirements.

In conclusion, SG7905AK is a voltage regulator that offers reliable and efficient voltage regulation. Its compact size and ease of use make it suitable for various electronic applications. However, its limited output current capacity and reliance on external components are notable disadvantages. Alternative models such as LM7905, MC7905, and LT1084 can be considered as substitutes based on specific needs.