LM431AIM3X/NOPB

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage References

Characteristics: - Adjustable Precision Shunt Regulator - Low Temperature Coefficient - Wide Operating Current Range - Programmable Output Voltage - High Accuracy

Package: SOT-23-3

Essence: The LM431AIM3X/NOPB is a precision shunt regulator that can be used to provide a stable reference voltage. It is commonly used in various electronic circuits where a precise voltage reference is required.

Packaging/Quantity: The LM431AIM3X/NOPB is available in a SOT-23-3 package, which is a small surface-mount package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Reference Voltage Range: 2.495V to 36V
• Operating Current Range: 1mA to 100mA
• Temperature Coefficient: 50ppm/°C (typical)
• Line Regulation: 0.2% (typical)
• Load Regulation: 0.4% (typical)
• Maximum Cathode Current: 150mA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM431AIM3X/NOPB has three pins:

1. Anode (A): Connected to the positive supply voltage.
2. Cathode (K): Connected to the load or circuit ground.
3. Reference (R): Provides the stable reference voltage.

Functional Features

• Adjustable Output Voltage: The LM431AIM3X/NOPB allows the user to adjust the output voltage by connecting external resistors.
• Precision Voltage Reference: It provides a highly accurate and stable reference voltage for use in various applications.
• Programmable Shunt Regulator: The LM431AIM3X/NOPB can be programmed to regulate the voltage across a load or circuit.

Advantages and Disadvantages

Advantages: - High accuracy and stability - Wide operating current range - Adjustable output voltage - Low temperature coefficient

Disadvantages: - Limited maximum cathode current (150mA) - SOT-23-3 package may not be suitable for all applications

Working Principles

The LM431AIM3X/NOPB works as a shunt regulator by comparing the reference voltage at the Reference pin with the voltage across the load. It adjusts the current flowing through the cathode to maintain a constant voltage across the load, thus regulating the output voltage.

Detailed Application Field Plans

The LM431AIM3X/NOPB is widely used in various applications, including: 1. Voltage regulators 2. Power supplies 3. Battery chargers 4. Audio amplifiers 5. Instrumentation circuits

Detailed and Complete Alternative Models

Some alternative models to the LM431AIM3X/NOPB include: 1. TL431AIDBZR 2. LT1009CZ 3. MAX6126AASA25 4. REF3030AIDBZT 5. AD780BRZ

These alternative models offer similar functionality and can be used as substitutes depending on specific requirements.

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