LM4040C20QDBZTG4

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - Precision voltage reference - Low dropout voltage - High accuracy and stability - Wide operating temperature range - Small package size - Low power consumption

Package: SOT-23 (Small Outline Transistor 23)

Essence: The LM4040C20QDBZTG4 is a precision voltage reference IC that provides a stable and accurate output voltage. It is commonly used in various electronic circuits where a precise reference voltage is required.

Packaging/Quantity: The LM4040C20QDBZTG4 is available in a SOT-23 package. Each package contains one IC.

Specifications

• Output Voltage: 2.048V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 50ppm/°C
• Dropout Voltage: 60mV
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 2.7V to 10V
• Quiescent Current: 60µA

Detailed Pin Configuration

The LM4040C20QDBZTG4 has three pins:

1. VOUT: Output pin, provides the stable reference voltage of 2.048V.
2. GND: Ground pin, connected to the common ground of the circuit.
3. VIN: Input pin, receives the supply voltage for the IC.

Functional Features

• High precision: The LM4040C20QDBZTG4 offers a high initial accuracy of ±0.1% and a low temperature coefficient of 50ppm/°C, ensuring a stable and precise output voltage.
• Low dropout voltage: With a dropout voltage of only 60mV, the IC can operate efficiently even when the input voltage is close to the output voltage.
• Wide operating temperature range: The LM4040C20QDBZTG4 can function reliably in a temperature range of -40°C to +85°C, making it suitable for various environmental conditions.
• Low power consumption: The quiescent current of 60µA minimizes power consumption, making it ideal for battery-powered applications.

Advantages and Disadvantages

Advantages: - High accuracy and stability - Small package size - Wide operating temperature range - Low power consumption

Disadvantages: - Limited output voltage options - Single output voltage reference

Working Principles

The LM4040C20QDBZTG4 utilizes a bandgap voltage reference circuit to generate a stable and accurate output voltage. It compensates for temperature variations by using a temperature-dependent current source and a voltage divider network. This ensures that the output voltage remains constant over a wide temperature range.

Detailed Application Field Plans

The LM4040C20QDBZTG4 is commonly used in the following applications:

1. Precision analog-to-digital converters (ADCs)
2. Voltage regulators
3. Battery charging circuits
4. Sensor calibration
5. Test and measurement equipment

Detailed and Complete Alternative Models

1. LM4040AIM3-2.5/NOPB: Output voltage of 2.5V, SOT-23 package.
2. LT1461ACS8-2.5#PBF: Output voltage of 2.5V, SOIC-8 package.
3. MAX6126AASA25+: Output voltage of 2.5V, SOIC-8 package.
4. REF3030AIDBZR: Output voltage of 2.5V, SOT-23 package.
5. ADR3412ARMZ-REEL7: Output voltage of 2.5V, MSOP-8 package.

These alternative models provide similar functionality and can be used as substitutes for the LM4040C20QDBZTG4 in various applications.

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