L4931ABPT25TR

Product Overview

• Category: Voltage Regulator
• Use: To regulate voltage in electronic circuits
• Characteristics: Low dropout voltage, low quiescent current, high output current capability
• Package: SOT-223
• Essence: Linear voltage regulator
• Packaging/Quantity: Tape and reel, 2500 units per reel

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: 0.05% (typical)
• Load Regulation: 0.1% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L4931ABPT25TR has three pins:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output voltage differentials.
• Low quiescent current minimizes power consumption when the load is light.
• High output current capability allows for driving various loads.
• Internal thermal shutdown protection prevents overheating.

Advantages and Disadvantages

Advantages: - Low dropout voltage enables efficient voltage regulation. - Low quiescent current reduces power consumption. - High output current capability allows for versatile applications. - Thermal shutdown protection ensures safe operation.

Disadvantages: - Limited output current may not be suitable for high-power applications. - SOT-223 package may require additional heat dissipation measures in certain cases.

Working Principles

The L4931ABPT25TR is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The L4931ABPT25TR is commonly used in various electronic devices and circuits, including:

1. Battery-powered devices: Provides stable voltage for microcontrollers, sensors, and other low-power components.
2. Automotive applications: Regulates voltage for automotive electronics, such as infotainment systems and lighting controls.
3. Industrial equipment: Ensures reliable voltage supply for control systems, sensors, and communication modules.
4. Consumer electronics: Used in portable devices like smartphones, tablets, and digital cameras to maintain consistent power delivery.

Detailed and Complete Alternative Models

1. LM1117-2.5: Similar specifications and pin configuration, available in different packages.
2. LT1761-2.5: Low dropout voltage regulator with adjustable output voltage.
3. MCP1702-2.5: Low quiescent current linear regulator with fixed 2.5V output.

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