Texas Instruments

LM4128BMF-2.0

LM4128BMF-2.0 Description

The LM4128BMF-2.0 is a fixed-output voltage reference IC designed by Texas Instruments, offering a highly accurate and stable reference voltage of 2.048V. This device is part of the LM4128 series, known for its precision and reliability in power management applications. The LM4128BMF-2.0 is housed in a compact SOT23-5 package, making it suitable for surface-mount applications where space is a critical consideration.

LM4128BMF-2.0 Features

• Fixed Output Voltage: The LM4128BMF-2.0 provides a fixed output voltage of 2.048V, ensuring consistent performance in various applications.
• High Accuracy: With a tolerance of ±0.2%, this IC offers high precision, making it ideal for applications requiring stringent voltage regulation.
• Low Supply Current: The device operates with a supply current of only 100µA, minimizing power consumption and enhancing efficiency.
• Wide Input Voltage Range: The LM4128BMF-2.0 can operate within an input voltage range of 2.448V to 5.5V, providing flexibility in power supply design.
• Low Temperature Coefficient: The temperature coefficient of 75ppm/°C ensures minimal drift in output voltage over a wide temperature range, maintaining accuracy in varying environmental conditions.
• Series Reference Type: As a series reference, the LM4128BMF-2.0 is designed to provide a stable reference voltage to other components in a circuit.
• Moisture Sensitivity Level: With an MSL rating of 1 (Unlimited), the device is suitable for a wide range of manufacturing processes without the need for special handling.
• Compliance: The LM4128BMF-2.0 is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations.

LM4128BMF-2.0 Applications

The LM4128BMF-2.0 is well-suited for a variety of applications requiring a precise and stable voltage reference. Some specific use cases include:

• Analog-to-Digital Converters (ADCs): The high accuracy and low temperature coefficient make it ideal for providing a stable reference voltage to ADCs, ensuring accurate digital conversions.
• Digital-to-Analog Converters (DACs): The fixed output voltage and low supply current are beneficial for DACs, enhancing the precision of analog output signals.
• Power Management Circuits: The wide input voltage range and low supply current make it suitable for various power management applications, including battery-powered devices.
• Precision Measurement Instruments: The LM4128BMF-2.0 can serve as a reliable reference voltage source in precision measurement instruments, contributing to accurate readings.
• Medical Devices: The compact size and high accuracy are advantageous for medical devices where space and precision are critical.

Conclusion of LM4128BMF-2.0

The LM4128BMF-2.0 is a versatile and precise voltage reference IC that offers significant advantages over similar models. Its high accuracy, low supply current, and wide input voltage range make it suitable for a wide range of applications, from power management circuits to precision measurement instruments. Despite being marked as obsolete, the LM4128BMF-2.0 remains a reliable choice for applications requiring a stable and accurate voltage reference.