Texas Instruments

LM4120AIM5-1.8

LM4120AIM5-1.8 Description

The LM4120AIM5-1.8 from Texas Instruments is a high-precision, low-power series voltage reference designed for applications requiring stable and accurate voltage regulation. This fixed 1.8V output reference features an exceptional ±0.2% tolerance and a low 50ppm/°C temperature coefficient, ensuring minimal drift over temperature variations. With an input voltage range of 2V to 12V, it operates at a low 275µA supply current, making it ideal for power-sensitive designs. Packaged in a compact SOT23-5 form factor and available in Tape & Reel (TR), it is optimized for surface-mount assembly in space-constrained applications.

LM4120AIM5-1.8 Features

• High Accuracy: ±0.2% initial tolerance for precise voltage referencing.
• Low Temperature Drift: 50ppm/°C ensures stability across operating conditions.
• Low Power Consumption: 275µA supply current minimizes energy usage.
• Wide Input Range: 2V to 12V compatibility for versatile system integration.
• Compact & Reliable: SOT23-5 package with MSL 1 (Unlimited) moisture sensitivity, suitable for automated PCB assembly.
• Low Output Current: Supports up to 5mA load, ideal for low-power analog and mixed-signal circuits.
• Obsolete Status: While no longer in production, it remains a reliable choice for legacy or low-volume designs.

LM4120AIM5-1.8 Applications

• Precision Analog Systems: ADC/DAC reference, sensor signal conditioning.
• Portable Electronics: Battery-powered devices requiring stable low-voltage references.
• Industrial Controls: Process instrumentation, calibration equipment.
• Embedded Systems: Microcontroller voltage stabilization in IoT and edge devices.
• Legacy Designs: Maintenance of existing systems where component consistency is critical.

Conclusion of LM4120AIM5-1.8

The LM4120AIM5-1.8 excels in delivering high accuracy and low power consumption for precision voltage reference applications. Its compact size, wide input range, and low drift make it a strong candidate for portable and industrial systems, despite its obsolete status. Engineers seeking a cost-effective, proven solution for stable 1.8V referencing will find this IC well-suited for legacy or niche designs where reliability outweighs the need for newer alternatives.