LM4040C30QDBZT

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

Package: SOT-23-3

Essence: The LM4040C30QDBZT 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 LM4040C30QDBZT 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

• Output Voltage: 3.0V
• Initial Accuracy: ±0.1%
• Temperature Coefficient: 50ppm/°C
• Dropout Voltage: 60mV (typical)
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 2.7V to 10V
• Quiescent Current: 60µA (typical)

Pin Configuration

The LM4040C30QDBZT has three pins arranged as follows:

```

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| | --| VOUT |-- --| GND |-- --| VIN |-- |_______| ```

Pin Description: - VOUT: Output Voltage - GND: Ground - VIN: Input Voltage

Functional Features

• High Precision: The LM4040C30QDBZT provides a highly accurate and stable output voltage of 3.0V, making it suitable for applications requiring precise voltage references.
• Low Dropout Voltage: With a low dropout voltage of 60mV, the IC can operate efficiently even when the input voltage is close to the output voltage.
• Wide Operating Temperature Range: The LM4040C30QDBZT can operate in a wide temperature range from -40°C to +85°C, making it suitable for various environmental conditions.
• Low Quiescent Current: The IC has a low quiescent current of 60µA, minimizing power consumption in battery-powered applications.

Advantages and Disadvantages

Advantages: - High accuracy and stability - Small package size - Wide operating temperature range - Low dropout voltage - Low quiescent current

Disadvantages: - Limited output voltage options (only 3.0V)

Working Principles

The LM4040C30QDBZT uses a bandgap reference circuit to generate a stable and accurate output voltage. It compensates for temperature variations by utilizing a temperature-dependent voltage that cancels out the temperature coefficient of the base-emitter voltage of a bipolar transistor. This results in a highly precise voltage reference.

Detailed Application Field Plans

The LM4040C30QDBZT is commonly used in various electronic systems and circuits, including but not limited to: 1. Precision analog-to-digital converters (ADCs) 2. Voltage regulators 3. Data acquisition systems 4. Battery management systems 5. Test and measurement equipment 6. Industrial control systems 7. Medical devices 8. Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to the LM4040C30QDBZT include: - LM4040C25QDBZT: 2.5V precision voltage reference - LM4040C10QDBZT: 1.0V precision voltage reference - LM4040AIM3-3.0/NOPB: 3.0V precision voltage reference in SOT-23 package - LT1461ACS8-3#PBF: 3.0V precision voltage reference in SOIC-8 package

These alternative models offer different output voltages and package options, allowing users to choose the most suitable one for their specific application requirements.

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