L4931ABDT33-TR

Product Overview

Category

L4931ABDT33-TR belongs to the category of voltage regulators.

Use

It is commonly used to regulate and stabilize voltage in electronic circuits.

Characteristics

• Low dropout voltage
• High output current capability
• Excellent line and load regulation
• Thermal shutdown and short-circuit protection

Package

L4931ABDT33-TR comes in a small surface-mount SOT-223 package.

Essence

The essence of L4931ABDT33-TR lies in its ability to provide a stable and regulated output voltage.

Packaging/Quantity

This product is typically packaged in reels, with each reel containing a specific quantity of L4931ABDT33-TR voltage regulators.

Specifications

• Input Voltage Range: 4.2V to 20V
• Output Voltage: 3.3V
• Output Current: Up to 250mA
• Dropout Voltage: 0.6V (typical)
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

L4931ABDT33-TR has three pins:

1. VIN (Input Voltage): Connects to the input voltage source.
2. VOUT (Output Voltage): Provides the regulated output voltage.
3. GND (Ground): Common reference point for the circuit.

Functional Features

• Low dropout voltage ensures efficient regulation even with low input voltages.
• High output current capability allows it to power various components in a circuit.
• Excellent line and load regulation maintain a stable output voltage under varying conditions.
• Thermal shutdown and short-circuit protection safeguard the regulator and connected devices from damage.

Advantages and Disadvantages

Advantages

• Compact SOT-223 package enables space-saving designs.
• Wide input voltage range makes it versatile for different applications.
• Low dropout voltage minimizes power dissipation and improves efficiency.

Disadvantages

• Limited output current may not be suitable for high-power applications.
• Requires external capacitors for stability, adding to the overall circuit complexity.

Working Principles

L4931ABDT33-TR operates based on the principle of a linear voltage regulator. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. This ensures that the output voltage remains constant despite variations in the input voltage or load conditions.

Detailed Application Field Plans

L4931ABDT33-TR finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Embedded systems - Consumer electronics - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to L4931ABDT33-TR are: - LM1117-3.3 - MCP1700-3302E/TO - NCP1117ST33T3G

These models offer similar functionality and specifications, providing options for designers based on their specific requirements.

In conclusion, L4931ABDT33-TR is a voltage regulator with excellent characteristics, making it suitable for a wide range of applications. Its compact size, low dropout voltage, and thermal protection features make it an attractive choice for various electronic circuits. However, its limited output current and requirement for external capacitors should be taken into consideration when selecting this product for high-power applications.