LM4041CICT-1.2

Overview

The LM4041CICT-1.2 is a micropower shunt voltage reference manufactured by STMicroelectronics, providing a fixed typical output voltage of 1.225 V. It features an initial accuracy of ±0.5% at 25 °C and operates with an ultra-low current consumption of 50 µA at 25 °C. The device exhibits a maximum temperature coefficient of 100 ppm/°C and maintains stability when driving capacitive loads. It supports a cathode current up to 12 mA and functions within an extended industrial temperature range of -40 °C to +125 °C. The component is housed in a compact SOT-23-3 surface-mount package.

Feature Summary

• Provides stable 1.225 V reference output with high precision
• Ultra-low operating current suitable for power-constrained designs
• Maintains stability under capacitive load conditions
• Available in space-saving surface mount packages

Applications

• Portable battery-powered instrumentation
• Data acquisition systems requiring precise voltage references
• Temperature measurement circuits
• Handheld devices with limited power budgets

Procurement Notes

Verify the specific suffix 'CICT' corresponds to the desired tolerance grade (±0.5%) and temperature range (-40°C to +125°C). Confirm the package type matches the design footprint requirements. Ensure compatibility with the intended circuit's cathode current limits and capacitive load specifications before finalizing procurement orders.

Selection Notes

Select this component when a fixed 1.225 V reference is required with minimal quiescent current draw. The ±0.5% accuracy offers a balance between cost and precision for general-purpose applications. Consider the SOT-23-3 package size for PCB area constraints. Verify that the 12 mA maximum cathode current meets the circuit's sink requirements.

Part Context

This part belongs to the LM4041 family of micropower shunt voltage references from STMicroelectronics. The family includes variants with different accuracies (0.1%, 0.2%, 0.5%, 1%) and temperature grades. The LM4041 series is designed for applications where low power consumption and small form factor are critical design drivers.

Replacement Considerations

LM4041CELT-1.2: Same manufacturer, similar specifications, verify exact suffix compatibility for package and tolerance.