LM4040B25H5TA

Overview

The LM4040B25H5TA is a precision micropower shunt voltage reference from Diodes Incorporated, providing a fixed output of 2.5V with an initial tolerance of ±0.2%. It operates within a wide current range of 60µA to 15mA and maintains stability over an extended temperature range of -40°C to +125°C. The device features a maximum temperature coefficient of 100 ppm/°C and low output noise. It is housed in the SC70-5 surface-mount package.

Feature Summary

• Provides high-precision voltage referencing with tight initial tolerance specifications
• Operates efficiently across a wide micropower current range suitable for battery applications
• Maintains stable performance under varying thermal conditions without requiring external capacitors

Applications

• Battery powered equipment
• Precision power supplies
• Portable instrumentation
• Data acquisition systems

Procurement Notes

Verify component status as this specific SC70-5 variant is designated End of Life by the manufacturer. Confirm availability of alternative packages such as SOT23 for new designs. Ensure compliance with RoHS and lead-free requirements during sourcing. Validate that the selected supplier sources directly from authorized channels to guarantee authenticity.

Selection Notes

Select this component when space-constrained designs require a 2.5V reference with high accuracy. Consider the End of Life status for long-term production viability. Evaluate the SOT23 package alternatives if continuous supply is required. Verify that the operating current range meets the system's power budget constraints.

Part Context

This part belongs to the LM4040 family of bandgap voltage references designed for precision applications. The H5 suffix indicates the SC70-5 package, which is now obsolete. The B grade specifies the tighter 0.2% tolerance compared to C or D grades. This family offers pin-compatible alternatives in different form factors.

Replacement Considerations

Public confirmed substitute part numbers include LM4040B25FTA (SOT23 package). Other variants like LM4040C25H5TA or LM4040D25H5TA share the same package but differ in tolerance. Check datasheet for electrical parameter compatibility before substitution.