L7905ACV-DG

Product Overview

Category

L7905ACV-DG belongs to the category of voltage regulators.

Use

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

Characteristics

• Input Voltage Range: -35V to -10V
• Output Voltage: -5V
• Maximum Output Current: 1A
• Dropout Voltage: 2V
• Operating Temperature Range: -40°C to +125°C
• Package Type: TO-220
• Mounting Style: Through Hole

Packaging/Quantity

L7905ACV-DG is typically packaged in reels or tubes, with a quantity of 1000 units per package.

Specifications

• Input Voltage Range: -35V to -10V
• Output Voltage: -5V
• Output Current: 1A
• Dropout Voltage: 2V
• Line Regulation: 0.2%
• Load Regulation: 0.4%
• Ripple Rejection Ratio: 62dB
• Quiescent Current: 6mA
• Thermal Resistance: 50°C/W
• Protection Features: Overcurrent, Overtemperature, Short Circuit

Pin Configuration

The L7905ACV-DG voltage regulator has three pins:

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

Functional Features

• Regulates and stabilizes the input voltage to a constant -5V output.
• Provides protection against overcurrent, overtemperature, and short circuit conditions.
• Offers good line and load regulation, ensuring stable output voltage under varying conditions.
• High ripple rejection ratio minimizes noise interference in the output signal.

Advantages

• Compact TO-220 package allows for easy integration into various electronic circuits.
• Wide operating temperature range (-40°C to +125°C) enables usage in extreme environments.
• Dropout voltage of 2V ensures efficient regulation even with low input voltages.

Disadvantages

• Limited output current of 1A may not be suitable for high-power applications.
• Quiescent current of 6mA may lead to higher power consumption in standby mode.

Working Principles

The L7905ACV-DG operates based on the principle of linear voltage regulation. It uses a series pass transistor to regulate the output voltage by adjusting the resistance between the input and output pins. The internal circuitry compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a constant -5V output.

Application Field Plans

The L7905ACV-DG is commonly used in various electronic devices and systems, including:

1. Power supplies for microcontrollers and digital circuits.
2. Audio amplifiers and preamplifiers.
3. Battery charging circuits.
4. Automotive electronics.
5. Industrial control systems.

Alternative Models

1. LM7905: Similar voltage regulator with comparable specifications.
2. MC7905: Another alternative with similar functionality.
3. LT1085: Higher current variant with adjustable output voltage.
4. LM317: Adjustable positive voltage regulator.

These alternative models can be considered based on specific application requirements and availability.

In conclusion, the L7905ACV-DG voltage regulator is a reliable and widely used component for voltage regulation in electronic circuits. Its compact size, stable performance, and protection features make it suitable for various applications across different industries.