L4931CZ120-AP

Product Overview

Category

L4931CZ120-AP belongs to the category of voltage regulators.

Use

It is commonly used to regulate voltage in electronic circuits.

Characteristics

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

Package

L4931CZ120-AP comes in a TO-92 package.

Essence

The essence of L4931CZ120-AP is 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 1000 units per reel/tube.

Specifications

• Input Voltage Range: 2.5 V to 20 V
• Output Voltage: 1.2 V
• Dropout Voltage: 0.6 V (typical)
• Output Current: Up to 100 mA
• Quiescent Current: 5 mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

L4931CZ120-AP has three pins:

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

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• Thermal shutdown protects the device from overheating.
• Short-circuit protection prevents damage in case of a short circuit.

Advantages

• Small form factor and easy to integrate into various circuit designs.
• Stable and accurate output voltage.
• Low quiescent current consumption.
• Wide operating temperature range allows for use in extreme environments.

Disadvantages

• Limited output current capacity (up to 100 mA).
• Fixed output voltage may not be suitable for all applications.
• Requires external capacitors for stability.

Working Principles

L4931CZ120-AP 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 to maintain a constant output voltage.

Detailed Application Field Plans

L4931CZ120-AP finds applications in various electronic devices, including:

1. Battery-powered devices: Provides stable voltage for microcontrollers, sensors, and other low-power components.
2. Audio amplifiers: Regulates the voltage for audio amplification circuits, ensuring consistent sound quality.
3. LED lighting: Maintains a steady voltage supply for LED drivers, preventing flickering or damage to the LEDs.
4. Automotive electronics: Used in automotive systems to regulate voltage for sensors, actuators, and control modules.

Detailed and Complete Alternative Models

1. LM1117-3.3: A similar voltage regulator with an output voltage of 3.3 V.
2. LT1763: Low dropout voltage regulator with adjustable output voltage.
3. MCP1700: Low quiescent current LDO regulator with fixed output voltage options.

These alternative models offer different output voltages, dropout voltages, and additional features to suit specific application requirements.

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