LM4128CMFX-2.0

Overview

Category: Integrated Circuit (IC)

Use: Voltage Reference

Characteristics: - Low Dropout Voltage - High Accuracy - Low Temperature Coefficient - Low Quiescent Current - Small Package Size

Package: SOT-23

Essence: The LM4128CMFX-2.0 is a precision voltage reference IC that provides a stable and accurate output voltage of 2.0V.

Packaging/Quantity: The LM4128CMFX-2.0 is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Output Voltage: 2.0V ± 0.5%
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 120µA (typical)
• Temperature Coefficient: 50ppm/°C (maximum)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM4128CMFX-2.0 has three pins:

1. VOUT: Output Voltage
2. GND: Ground
3. VIN: Input Voltage

Functional Features

• High accuracy and stability: The LM4128CMFX-2.0 provides a precise and stable output voltage, ensuring reliable performance in various applications.
• Low dropout voltage: With a low dropout voltage, the IC can operate efficiently even when the input voltage is close to the desired output voltage.
• Low quiescent current: The LM4128CMFX-2.0 consumes minimal current when not actively providing the reference voltage, making it suitable for battery-powered devices.
• Low temperature coefficient: The IC exhibits a low temperature coefficient, minimizing the impact of temperature variations on the output voltage accuracy.

Advantages and Disadvantages

Advantages: - High accuracy and stability - Low dropout voltage - Low quiescent current - Small package size

Disadvantages: - Limited output voltage options (only 2.0V in this model) - Sensitive to input voltage fluctuations

Working Principles

The LM4128CMFX-2.0 utilizes a bandgap reference circuit to generate a stable and accurate output voltage. It compensates for temperature variations and provides a constant voltage reference for other components in the circuit.

Detailed Application Field Plans

The LM4128CMFX-2.0 is commonly used in various applications, including:

1. Precision analog-to-digital converters (ADCs)
2. Digital-to-analog converters (DACs)
3. Voltage regulators
4. Battery-powered devices
5. Portable electronic devices

Detailed and Complete Alternative Models

1. LM4040CIM3-2.0/NOPB: 2.0V precision shunt voltage reference in SOT-23 package.
2. LT1461AIS8-2.0#PBF: 2.0V micropower precision series voltage reference in SOIC-8 package.
3. MAX6126AASA25+: 2.5V ultra-low-noise precision voltage reference in SOIC-8 package.

These alternative models offer similar functionality and can be considered as substitutes for the LM4128CMFX-2.0 in different applications.

In conclusion, the LM4128CMFX-2.0 is a precision voltage reference IC that provides a stable and accurate output voltage of 2.0V. With its low dropout voltage, high accuracy, and small package size, it is suitable for various applications requiring precise voltage references. However, it has limited output voltage options and may be sensitive to input voltage fluctuations.