LMV431IM5X/NOPB

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage References

Characteristics: - Low voltage reference - Precision shunt regulator - Adjustable output voltage - Low quiescent current - High accuracy and stability

Package: SOT-23-5

Essence: The LMV431IM5X/NOPB is a precision voltage reference IC that provides a stable and accurate output voltage. It is commonly used in various electronic devices where a precise voltage reference is required.

Packaging/Quantity: The LMV431IM5X/NOPB is available in a SOT-23-5 package, which contains 3000 units per reel.

Specifications

• Reference Voltage Range: 1.24V to 6V
• Initial Accuracy: ±1%
• Temperature Coefficient: 50ppm/°C
• Quiescent Current: 80µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LMV431IM5X/NOPB has five pins arranged as follows:

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Pin 1: Anode (A) Pin 2: Cathode (K) Pin 3: NC (No Connection) Pin 4: Adjust (ADJ) Pin 5: Ground (GND)

Functional Features

• Adjustable Output Voltage: The LMV431IM5X/NOPB allows the user to adjust the output voltage within the specified range.
• Low Quiescent Current: The IC consumes very low current during operation, making it suitable for battery-powered applications.
• High Accuracy and Stability: The LMV431IM5X/NOPB provides precise and stable output voltage, ensuring reliable performance in various electronic circuits.

Advantages and Disadvantages

Advantages: - Wide voltage range - Low quiescent current consumption - High accuracy and stability

Disadvantages: - Limited output current capability - Requires external components for certain applications

Working Principles

The LMV431IM5X/NOPB operates as a precision shunt regulator. It compares the reference voltage with an adjustable voltage divider network connected to the ADJ pin. By adjusting the resistance values in the voltage divider, the output voltage can be set within the specified range. The IC maintains a stable output voltage by continuously monitoring and regulating the current flow through the shunt resistor.

Detailed Application Field Plans

The LMV431IM5X/NOPB finds applications in various fields, including:

1. Power Supply Regulation: It is used to provide a stable voltage reference for power supply circuits, ensuring consistent and accurate output voltages.
2. Battery Management Systems: The IC is employed in battery charging circuits to maintain precise voltage levels during the charging process.
3. Instrumentation and Measurement: It is utilized in precision measurement equipment where accurate voltage references are crucial for reliable measurements.
4. Audio Amplifiers: The LMV431IM5X/NOPB helps in maintaining stable bias voltages in audio amplifier circuits, resulting in improved audio quality.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LMV431IM5X/NOPB include:

1. TL431: This is a popular voltage reference IC with adjustable output voltage and high accuracy.
2. LT1009: It is a precision shunt regulator IC that provides a stable reference voltage over a wide temperature range.
3. MAX6126: This IC offers ultra-low noise and high precision voltage reference capabilities, suitable for sensitive applications.

These alternative models can be considered based on specific requirements and application needs.

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