L4931CPT120-TR

Product Overview

Category

L4931CPT120-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
• Low quiescent current
• High output voltage accuracy
• Thermal shutdown protection
• Short-circuit current limiting

Package

L4931CPT120-TR is available in a TO-220 package.

Essence

The essence of L4931CPT120-TR lies in its ability to provide a stable and regulated output voltage for various electronic applications.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 4.2V to 20V
• Output Voltage: 1.2V
• Dropout Voltage: 0.6V (typical)
• Quiescent Current: 5mA (typical)
• Output Current: Up to 100mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

L4931CPT120-TR has three pins:

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

Functional Features

• Low Dropout Voltage: The low dropout voltage ensures efficient regulation even when the input voltage is close to the desired output voltage.
• Low Quiescent Current: The low quiescent current minimizes power consumption when the load is light.
• High Output Voltage Accuracy: L4931CPT120-TR provides precise and accurate output voltage, ensuring reliable performance of the connected circuitry.
• Thermal Shutdown Protection: In case of excessive temperature, the regulator shuts down to prevent damage.
• Short-Circuit Current Limiting: The device limits the output current in the event of a short circuit, protecting the circuit components.

Advantages and Disadvantages

Advantages

• Reliable voltage regulation
• Low power consumption
• Compact package size
• Thermal protection for enhanced safety
• Short-circuit protection

Disadvantages

• Limited output current capacity (up to 100mA)
• Restricted input voltage range (4.2V to 20V)

Working Principles

L4931CPT120-TR operates based on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The internal circuitry compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

L4931CPT120-TR finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Mobile phones - Portable audio players - Embedded systems - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to L4931CPT120-TR are: - LM1117-3.3 - LT1086 - MCP1700

These models offer similar functionality and characteristics, providing options for different design requirements.

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