L4931CZ25

Product Overview

• Category: Voltage Regulator
• Use: To regulate voltage in electronic circuits
• Characteristics: Low dropout voltage, low quiescent current, high output current capability
• Package: TO-92 (Through-Hole)
• Essence: Linear voltage regulator
• Packaging/Quantity: Available in tape and reel packaging, quantity depends on supplier

Specifications

• Input Voltage Range: 4.4V to 26V
• Output Voltage: 2.5V
• Dropout Voltage: 0.6V at 150mA
• Quiescent Current: 5mA
• Output Current: Up to 100mA
• Line Regulation: 0.04%/V
• Load Regulation: 0.3%
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L4931CZ25 has three pins:

1. Input (VIN): Connects to the input voltage source.
2. Ground (GND): Connected to the ground reference of the circuit.
3. Output (VOUT): Provides the regulated output voltage.

Functional Features

• Low dropout voltage: The L4931CZ25 can regulate the output voltage even when the input voltage is close to the desired output voltage.
• Low quiescent current: It consumes minimal current when there is no load, making it suitable for battery-powered applications.
• High output current capability: With a maximum output current of 100mA, it can power various electronic components.

Advantages and Disadvantages

Advantages: - Easy to use and integrate into circuits - Stable and accurate output voltage - Wide input voltage range - Thermal shutdown protection

Disadvantages: - Limited output current compared to other voltage regulators - Higher dropout voltage compared to some modern regulators

Working Principles

The L4931CZ25 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 despite variations in the input voltage.

Detailed Application Field Plans

The L4931CZ25 is commonly used in various electronic applications, including:

1. Battery-powered devices: It provides a stable voltage supply for portable devices such as smartphones, tablets, and portable audio players.
2. Automotive electronics: It regulates voltage in automotive systems, ensuring reliable operation of components.
3. Industrial control systems: It is used in control circuits to maintain a constant voltage for sensors, actuators, and other electronic components.

Detailed and Complete Alternative Models

• LM1117-2.5: Similar specifications and pin configuration, available in different packages.
• LT1763-2.5: Lower dropout voltage, higher output current capability, available in surface mount packages.
• MCP1702-2.5: Low quiescent current, wide input voltage range, available in various package options.

(Note: The above alternative models are just examples and not an exhaustive list.)

This entry provides an overview of the L4931CZ25 voltage regulator, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.