LM4040DEM3-2.0/NOPB

Product Overview

Category

The LM4040DEM3-2.0/NOPB belongs to the category of voltage references.

Use

It is commonly used as a precision shunt regulator for various applications.

Characteristics

• High accuracy and stability
• Low temperature coefficient
• Low dropout voltage
• Wide operating range

Package

The LM4040DEM3-2.0/NOPB is available in a small SOT-23 package.

Essence

This product serves as a precise voltage reference, providing a stable output voltage for electronic circuits.

Packaging/Quantity

The LM4040DEM3-2.0/NOPB is typically packaged in reels containing 3000 units.

Specifications

• Output Voltage: 2.048V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 20ppm/°C
• Dropout Voltage: 60mV (typical)
• Operating Current: 60µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LM4040DEM3-2.0/NOPB has three pins:

1. VOUT: Output pin, connected to the load.
2. GND: Ground pin, connected to the circuit ground.
3. VIN: Input pin, connected to the power supply.

Functional Features

• Precise voltage reference for accurate circuit operation.
• Low dropout voltage ensures efficient power utilization.
• Excellent temperature stability for reliable performance across varying conditions.
• Low operating current minimizes power consumption.

Advantages and Disadvantages

Advantages

• High accuracy and stability ensure precise voltage regulation.
• Low temperature coefficient reduces output voltage variations with temperature changes.
• Small package size allows for space-saving integration into compact designs.
• Wide operating range enables versatile application possibilities.

Disadvantages

• Limited output voltage options, with only 2.048V available.
• Relatively low maximum operating temperature of +85°C.

Working Principles

The LM4040DEM3-2.0/NOPB utilizes a bandgap reference circuit to generate a stable and accurate output voltage. It compensates for temperature variations by employing a proportional-to-absolute-temperature (PTAT) current source and a negative temperature coefficient (NTC) resistor. This design ensures that the output voltage remains constant over a wide temperature range.

Detailed Application Field Plans

The LM4040DEM3-2.0/NOPB finds applications in various fields, including:

1. Precision analog circuits
2. Voltage regulators
3. Data acquisition systems
4. Portable devices
5. Battery-powered equipment
6. Industrial control systems

Its high accuracy and stability make it suitable for any application requiring precise voltage references.

Detailed and Complete Alternative Models

1. LM4040AIM3-2.0/NOPB: Similar specifications but available in a different package (SOT-23).
2. LM4040BIM3-2.0/NOPB: Higher initial accuracy (±0.05%) and lower dropout voltage (40mV).
3. LM4040CIM3-2.0/NOPB: Lower initial accuracy (±0.2%) but wider operating temperature range (-40°C to +125°C).

These alternative models offer different trade-offs in terms of accuracy, temperature range, and package options, allowing users to choose the most suitable option for their specific requirements.

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