L4931ABZ120

Product Overview

Category

L4931ABZ120 belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Low dropout voltage
• Output current up to 100 mA
• Fixed output voltage of 1.2 V
• Very low quiescent current
• Thermal shutdown and short-circuit protection

Package

L4931ABZ120 comes in a small package, typically a TO-92 or SOT-89 package.

Essence

The essence of L4931ABZ120 is to provide a stable and regulated output voltage for electronic devices.

Packaging/Quantity

It is commonly available in reels or tubes, with quantities varying depending on the manufacturer.

Specifications

• Input Voltage Range: 2.5 V to 20 V
• Output Voltage: 1.2 V
• Output Current: Up to 100 mA
• Dropout Voltage: 0.6 V (typical)
• Quiescent Current: 50 µA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

L4931ABZ120 has three pins:

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

Functional Features

• Low dropout voltage ensures efficient regulation even with low input voltages.
• The fixed output voltage of 1.2 V makes it suitable for specific applications.
• Very low quiescent current minimizes power consumption.
• Thermal shutdown and short-circuit protection safeguard the device and connected circuitry.

Advantages and Disadvantages

Advantages

• Stable and regulated output voltage.
• Low dropout voltage allows for efficient operation.
• Small package size enables easy integration into various circuits.
• Thermal shutdown and short-circuit protection enhance reliability.

Disadvantages

• Limited output current capability (up to 100 mA).
• Fixed output voltage may not be suitable for all applications.

Working Principles

L4931ABZ120 is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a constant output voltage.

Detailed Application Field Plans

L4931ABZ120 finds applications in various electronic devices, including but not limited to: - Battery-powered devices - Portable audio players - IoT devices - Embedded systems - Microcontrollers

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to L4931ABZ120 are: - LM317: Adjustable voltage regulator with higher output current capability. - LT1763: Low dropout voltage regulator with adjustable output voltage. - MCP1700: Low quiescent current voltage regulator with fixed output voltage options.

These alternative models offer different features and specifications, allowing users to choose the most suitable option for their specific requirements.

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