Texas Instruments

LM4125IM5-2.5

LM4125IM5-2.5 Description

The LM4125IM5-2.5 is a fixed output voltage reference IC designed by Texas Instruments. This device provides a stable 2.5V output with a tolerance of ±0.5%, ensuring precise voltage regulation. It operates within an input voltage range of 3.3V to 8V, making it suitable for a variety of power supply conditions. The LM4125IM5-2.5 features a low supply current of 290µA, which is ideal for applications where power efficiency is critical. The device is housed in a compact SOT23-5 package, enabling surface-mount assembly and saving valuable board space. With a temperature coefficient of 50ppm/°C, the LM4125IM5-2.5 maintains high accuracy across a wide temperature range. Although marked as obsolete, it remains a reliable choice for legacy systems and specific applications that require its unique specifications.

LM4125IM5-2.5 Features

• Fixed Output Voltage: The LM4125IM5-2.5 provides a stable 2.5V output, ensuring consistent performance in voltage-sensitive applications.
• High Accuracy: With a tolerance of ±0.5%, this voltage reference offers high precision, which is essential for accurate measurements and reliable system operation.
• Low Supply Current: Consuming only 290µA, the device is highly efficient, making it suitable for low-power and battery-operated systems.
• Wide Input Voltage Range: The ability to operate between 3.3V and 8V input voltages provides flexibility in power supply design.
• Compact Packaging: The SOT23-5 package allows for surface-mount assembly, saving space on the PCB and facilitating integration into compact designs.
• Low Temperature Coefficient: A temperature coefficient of 50ppm/°C ensures minimal drift over temperature variations, maintaining accuracy in diverse environmental conditions.
• Series Reference Type: As a series reference, the LM4125IM5-2.5 is designed to provide a stable voltage source in series with the load, enhancing overall system stability.

LM4125IM5-2.5 Applications

The LM4125IM5-2.5 is well-suited for a variety of applications where precise voltage regulation is crucial. Some specific use cases include:

• Analog-to-Digital Converters (ADCs): Provides a stable reference voltage for ADCs, ensuring accurate digital conversions.
• Digital-to-Analog Converters (DACs): Ensures precise output levels in DACs by offering a reliable reference voltage.
• Precision Voltage Measurement: Ideal for applications requiring accurate voltage measurements, such as in test and measurement equipment.
• Battery Management Systems: Suitable for monitoring and managing battery voltages in portable devices.
• Power Supply Calibration: Used in power supply designs to provide a stable reference for calibration and regulation.
• Medical Devices: Ensures accurate voltage levels in medical equipment, contributing to reliable and safe operation.

Conclusion of LM4125IM5-2.5

The LM4125IM5-2.5 from Texas Instruments is a high-precision voltage reference IC that offers a stable 2.5V output with minimal tolerance and low temperature coefficient. Its low supply current and compact SOT23-5 package make it an ideal choice for space-constrained and power-sensitive applications. Despite being marked as obsolete, the LM4125IM5-2.5 remains a reliable option for legacy systems and specific applications that require its unique specifications. Its versatility and precision make it a valuable component in various electronic systems, ensuring accurate voltage regulation and stable performance.