L4931ABV25

Product Overview

• Category: Voltage Regulator
• Use: To regulate voltage in electronic circuits
• Characteristics: Low dropout, low quiescent current, high accuracy
• Package: TO-220, SOT-223, DPAK, and other packages
• Essence: Linear voltage regulator
• Packaging/Quantity: Available in reels or tubes, quantity varies based on package type

Specifications

• Input Voltage Range: 4.4V to 26V
• Output Voltage: 2.5V
• Output Current: Up to 100mA
• Dropout Voltage: 0.6V (typical)
• Quiescent Current: 50µA (typical)
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L4931ABV25 has three pins:

1. Input (IN): Connects to the input voltage source.
2. Ground (GND): Connected to the ground reference.
3. Output (OUT): Provides the regulated output voltage.

Functional Features

• Low dropout voltage ensures efficient regulation even with small voltage differences.
• Low quiescent current minimizes power consumption when the load is light.
• High accuracy provides a stable output voltage for precise circuit operation.
• Thermal shutdown and current limit protection features enhance device reliability.

Advantages and Disadvantages

Advantages: - Low dropout voltage allows for efficient regulation. - Low quiescent current reduces power consumption. - High accuracy ensures stable output voltage. - Thermal shutdown and current limit protection enhance reliability.

Disadvantages: - Limited output current (up to 100mA). - Input voltage range is restricted to 4.4V to 26V.

Working Principles

The L4931ABV25 is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusting the pass transistor accordingly. This ensures a stable output voltage regardless of input voltage variations.

Detailed Application Field Plans

The L4931ABV25 is commonly used in various electronic applications, including:

1. Battery-powered devices: Provides a stable voltage supply for portable electronics.
2. Automotive systems: Regulates voltage for automotive sensors and control circuits.
3. Industrial equipment: Ensures precise voltage regulation in industrial automation systems.
4. Communication devices: Used in routers, modems, and other network equipment.
5. Consumer electronics: Found in audio/video equipment, gaming consoles, etc.

Detailed and Complete Alternative Models

1. LM1117-2.5: Similar specifications, available in different package options.
2. LT1763-2.5: Low dropout voltage, higher output current capability.
3. MCP1702-2.5: Low quiescent current, compact SOT-23 package.

These alternative models offer similar functionality and can be considered as substitutes for the L4931ABV25 based on specific requirements.

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