The LM4128CMFX-4.1 is a precision, low-dropout micropower bandgap voltage reference in a small SOT-23 surface-mount package from Texas Instruments. This high-accuracy voltage reference provides a fixed 4.1V output with only ±0.1% initial accuracy and operates with a very low, 30µA typical quiescent current that is virtually immune to variations in temperature, load, and supply voltage.

Key Features

• Output Voltage: Precisely trimmed to 4.1V with high accuracy.
• Low Dropout: Operates with a very low dropout voltage, making it suitable for battery-powered applications.
• Temperature Coefficient: Features a low temperature coefficient, ensuring stable operation over a wide range of temperatures.
• Supply Voltage Range: Compatible with a wide range of supply voltages from 2.7V to 5.5V, accommodating various application needs.
• Quiescent Current: Ultra-low quiescent current minimizes power consumption, critical for portable and battery-operated devices.
• Load Regulation: Maintains a stable output despite changes in load, which is essential for consistent performance.
• Package: Available in a space-saving SOT-23 package, ideal for compact circuit designs.

Applications

The LM4128CMFX-4.1 is ideal for a variety of applications where precise voltage reference is critical. These include portable and battery-powered electronics, data acquisition systems, medical instruments, and industrial automation. Its high stability and low power consumption make it an excellent choice for precision analog circuits, A/D and D/A converters, and portable instrumentation.

Quality and Reliability

Texas Instruments is known for its commitment to quality and reliability. The LM4128CMFX-4.1 is no exception and is designed to meet the stringent requirements of industrial and commercial applications. With its robust design and proven performance, this voltage reference can be relied upon for consistent operation in the most demanding conditions.