Texas Instruments

LM4128CMFX-3.0

LM4128CMFX-3.0 Description

The LM4128CMFX-3.0 is a fixed output voltage reference IC designed by Texas Instruments, offering a highly accurate and stable reference voltage of 3.0V. This device is part of the Power Management Integrated Circuits (PMIC) category and is housed in a compact SOT23-5 package, making it suitable for a wide range of applications where space is a constraint. The LM4128CMFX-3.0 features a low supply current of 100µA, ensuring minimal power consumption, which is crucial for battery-operated devices and low-power systems.

LM4128CMFX-3.0 Features

• Fixed Output Voltage: The LM4128CMFX-3.0 provides a stable output voltage of 3.0V, ensuring consistent performance across various operating conditions.
• High Accuracy: With a tolerance of ±0.5%, this voltage reference IC offers high precision, making it ideal for applications requiring accurate voltage levels.
• Low Supply Current: Consuming only 100µA of supply current, the LM4128CMFX-3.0 is highly efficient and suitable for low-power applications.
• Wide Input Voltage Range: The device operates within an input voltage range of 3.4V to 5.5V, providing flexibility in power supply options.
• Low Temperature Coefficient: The temperature coefficient of 100ppm/°C ensures minimal drift in output voltage over a wide temperature range, enhancing the stability and reliability of the device.
• Surface Mount Packaging: The SOT23-5 package allows for surface mount technology, facilitating easy integration into modern PCB designs.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), the LM4128CMFX-3.0 is suitable for use in environments with varying humidity levels without the need for special handling precautions.

LM4128CMFX-3.0 Applications

The LM4128CMFX-3.0 is well-suited for a variety of applications that demand precise voltage references. Some specific use cases include:

• Analog-to-Digital Converters (ADCs): Providing a stable reference voltage ensures accurate conversion of analog signals to digital values.
• Digital-to-Analog Converters (DACs): Ensuring precise output voltage levels for high-fidelity signal reproduction.
• Power Management Systems: Offering a reliable reference voltage for voltage regulators and other power management components.
• Battery Management Systems: Ensuring accurate voltage monitoring and control for battery health and performance.
• Medical Devices: Providing stable and precise voltage references for critical medical equipment where accuracy is paramount.

Conclusion of LM4128CMFX-3.0

The LM4128CMFX-3.0 from Texas Instruments is a highly accurate and stable voltage reference IC that offers significant advantages over similar models. Its low supply current, high accuracy, and wide input voltage range make it an ideal choice for low-power and precision applications. The compact SOT23-5 package and surface mount technology ensure easy integration into modern electronic designs. Although the product is now obsolete, its unique features and performance benefits make it a valuable component for existing systems and legacy designs.