FAN4040BIS325X

Overview

The FAN4040BIS325X is a precision shunt voltage reference integrated circuit manufactured by Fairchild Semiconductor. It provides a fixed output voltage of 2.5V with an initial accuracy of ±0.2%. The device supports a maximum load current of 25 mA and is housed in a compact SOT-23-3 surface-mount package. Designed for space-constrained applications, it offers stable performance suitable for power management circuits requiring reliable voltage regulation.

Feature Summary

• Precision shunt voltage reference design
• Fixed 2.5V output capability
• Compact SOT-23-3 packaging

Applications

• Space-sensitive electronic designs
• Cost-sensitive power management systems
• Voltage regulation circuits

Procurement Notes

Verify the manufacturer origin as Fairchild Semiconductor or its successor entity ON Semiconductor. Confirm the specific suffix IS325 corresponds to the SOT-23-3 package and 2.5V output variant. Ensure documentation matches the fixed shunt reference specifications rather than adjustable variants within the broader FAN4040 series.

Selection Notes

Select this component when a fixed 2.5V reference is required in minimal footprint applications. The ±0.2% accuracy suits general-purpose precision needs. Consider the 25 mA current limit for load requirements. Verify compatibility with existing board space constraints due to the small SOT-23-3 form factor.

Part Context

The FAN4040 series comprises precision shunt references available in multiple output voltages including 2.5V, 3.0V, and others. This specific part represents the 2.5V fixed version in the SOT-23-3 package. The series targets applications demanding low cost and small size without compromising reference stability.

Replacement Considerations

Check for direct equivalents from ON Semiconductor which acquired Fairchild's semiconductor business. Verify pinout and electrical parameters against other 2.5V shunt references if sourcing from alternative manufacturers.