LM4120AIM5-2.5

Ⅰ.Overview of LM4120AIM5-2.5

The LM4120AIM5-2.5 is a high-precision series voltage reference IC developed by Texas Instruments, belonging to the Power Management (PMIC) category. It offers a fixed 2.5V output with exceptional stability, making it suitable for applications requiring reliable voltage referencing.

Ⅱ.LM4120AIM5-2.5 Parameter

Category:Integrated Circuits (ICs),Power Management (PMIC),Voltage Reference

Manufacturer:Texas Instruments

Packaging:Tape & Reel

Reference Type:Series

Output Type:Fixed

Voltage - Output (Min/Fixed):2.5V

Current - Output:5 mA

Tolerance:±0.2%

Temperature Coefficient:50ppm/°C

Noise - 0.1Hz to 10Hz:20µVp-p

Voltage - Input:2V ~ 12V

Current - Supply:275µA

Operating Temperature:-40°C ~ 85°C (TA)

Mounting Type:Surface Mount

Package / Case:SC-74A, SOT-753

Ⅲ.LM4120AIM5-2.5 Main Characteristics

High Precision:Features a tight output voltage tolerance of ±0.2% and a low temperature coefficient of 50 ppm/°C, ensuring stable performance across temperature variations.

Low Noise Performance:Delivers ultra-low noise of 20 µVp-p in the 0.1Hz to 10Hz frequency range,ideal for noise-sensitive applications.

Wide Input Voltage Range:Accepts an input voltage from 2V to 12V, providing flexibility in diverse power supply configurations.

Low Quiescent Current:Consumes only 275 µA of supply current, optimizing power efficiency for battery-powered or low-power systems.

Robust Operating Range:Operates reliably in temperatures from -40°C to 85°C (TA), suitable for industrial and harsh environmental conditions.

Compact Packaging:Available in SC-74A and SOT-753 surface-mount packages, enabling space-saving designs in compact electronic devices.

Series Reference Topology:Offers superior line regulation and load regulation compared to shunt references,enhancing overall system stability.

Ⅳ.LM4120AIM5-2.5 Application 

Precision Converters:Analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) requiring accurate voltage referencing.

Industrial Control:Industrial control systems and process automation equipment for stable operation in harsh industrial environments.

Battery Management:Battery management systems (BMS) for precise voltage monitoring and cell balancing.

Portable Electronics:Portable devices (e.g.,smartphones,tablets,wearables) benefiting from low quiescent current and compact size.

Medical Devices:Medical equipment (e.g.,patient monitors,diagnostic tools) needing high-precision and low-noise voltage references.

Test Instruments:Test and measurement devices (multimeters,oscilloscopes) requiring calibration-grade voltage stability.

Ⅴ.Conclusion

The LM4120AIM5-2.5 stands out as a reliable, high-performance voltage reference IC, combining precision, low noise, and power efficiency in a compact form factor. Its robust specifications make it a preferred choice for a wide range of industrial and medical applications requiring stable and accurate voltage referencing.