LM4140BCM-2.5/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - Low dropout voltage - High accuracy - Low temperature coefficient - Low quiescent current - Wide operating temperature range

Package: SOT-23

Essence: The LM4140BCM-2.5/NOPB is a precision voltage reference IC that provides a stable and accurate output voltage.

Packaging/Quantity: Available in tape and reel packaging, with 3000 units per reel.

Specifications

• Output Voltage: 2.5V
• Dropout Voltage: 200mV
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 50ppm/°C
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM4140BCM-2.5/NOPB has the following pin configuration:

```

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| | --|VOUT|-- --| |-- --|VIN |-- --|____|-- ```

Pin Descriptions: - VOUT: Output Voltage - VIN: Input Voltage

Functional Features

• Low dropout voltage ensures efficient operation even with low input voltages.
• High accuracy and low temperature coefficient provide precise and stable output voltage.
• Low quiescent current minimizes power consumption.
• Wide operating temperature range allows for reliable performance in various environments.

Advantages and Disadvantages

Advantages: - Precise and stable output voltage - Low dropout voltage - Low quiescent current - Wide operating temperature range

Disadvantages: - Limited output voltage options (only available in 2.5V)

Working Principles

The LM4140BCM-2.5/NOPB utilizes a bandgap voltage reference circuit to generate a stable output voltage. It compares the input voltage with an internal reference voltage and adjusts the output voltage accordingly. The low dropout voltage ensures that the IC can maintain regulation even when the input voltage is close to the desired output voltage.

Detailed Application Field Plans

The LM4140BCM-2.5/NOPB is commonly used in various applications where a precise and stable voltage reference is required. Some of the typical application fields include:

1. Precision Instrumentation: Used as a reference voltage for analog-to-digital converters, digital-to-analog converters, and other precision measurement devices.
2. Power Management: Provides a stable voltage reference for power management circuits, ensuring accurate control and regulation of power supplies.
3. Communication Systems: Used in communication systems to provide a stable reference voltage for signal processing and modulation circuits.
4. Industrial Control Systems: Utilized in industrial control systems for precise voltage references in control loops and feedback circuits.
5. Automotive Electronics: Used in automotive electronics for voltage references in sensors, actuators, and control modules.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM4140BCM-2.5/NOPB are:

1. LT6656: Precision voltage reference with low dropout voltage and high accuracy.
2. MAX619: Low-power voltage reference with low temperature coefficient and wide operating temperature range.
3. REF5050: High-precision voltage reference with low quiescent current and excellent long-term stability.

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

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