L4941BV

Product Overview

Category

L4941BV belongs to the category of voltage regulators.

Use

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

Characteristics

• L4941BV is a low-dropout (LDO) voltage regulator.
• It has a high output current capability.
• The device operates with a low quiescent current, making it suitable for battery-powered applications.
• It offers excellent line and load regulation.
• L4941BV provides thermal shutdown and current limit protection features.

Package

The L4941BV is available in a TO-220 package.

Essence

The essence of L4941BV lies in its ability to provide stable and regulated voltage output in various electronic applications.

Packaging/Quantity

The L4941BV is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Input Voltage Range: 4.4V to 40V
• Output Voltage Range: 2.85V to 37V
• Output Current: Up to 1A
• Dropout Voltage: 1.2V (typical)
• Quiescent Current: 80µA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L4941BV has three pins:

1. Input Pin (VIN): This pin is connected to the input voltage source.
2. Output Pin (VOUT): The regulated output voltage is obtained from this pin.
3. Ground Pin (GND): This pin is connected to the ground reference.

Functional Features

• Low Dropout Voltage: The L4941BV exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• High Output Current Capability: With an output current capability of up to 1A, the L4941BV can handle a wide range of load requirements.
• Thermal Shutdown and Current Limit Protection: The device incorporates thermal shutdown and current limit protection mechanisms to safeguard against excessive temperature and current conditions.

Advantages and Disadvantages

Advantages

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

Disadvantages

• Limited input voltage range (4.4V to 40V)
• Relatively higher quiescent current compared to some other voltage regulators

Working Principles

The L4941BV operates based on the principle of feedback control. It compares the output voltage with a reference voltage and adjusts the internal circuitry to maintain a stable output voltage despite variations in the input voltage and load conditions. The device utilizes a pass transistor to regulate the output voltage by adjusting its resistance.

Detailed Application Field Plans

The L4941BV finds applications in various electronic systems, including but not limited to: - Power supplies - Battery-powered devices - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the L4941BV include: - LM317 - LT1083 - LM1117 - NCP1117

These alternatives may have different specifications and pin configurations, so it is important to refer to their respective datasheets for detailed information.

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