LM431SBIMFX

$0.62

Description：IC VREF SHUNT ADJ 1% SOT23F-3
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:a98d00952762 Category: Voltage Reference Brand: onsemi

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Product introduction

LM431SBIMFX is listed in the Voltage Reference range at ChipApex. The manufacturer field lists onsemi. Its product description is IC VREF SHUNT ADJ 1% SOT23F-3. Review the specifications below when checking this part for your BOM.

Voltage Reference specifications for LM431SBIMFX

Description：IC VREF SHUNT ADJ 1% SOT23F-3
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Adjustable
Voltage - Output (Min/Fixed)：2.495V
Voltage - Output (Max)：36 V
Current - Output：100 mA
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：SOT-23-3 Flat Leads
Supplier Device Package：SOT-23F-3
Grade：-
Qualification：-

Voltage Reference datasheet and documents for LM431SBIMFX

LM431SBIMFX

Voltage Reference Overview

The LM431SBIMFX is a three-terminal adjustable shunt regulator manufactured by onsemi. It features a reference input voltage of approximately 2.5 V, with an output voltage programmable between this reference level and 36 V using two external resistors. The device operates within a cathode current range of 1.0 to 100 mA and maintains thermal stability over the -40 °C to +85 °C temperature range. It exhibits a typical dynamic output impedance of 0.2 Ω and a full-range temperature coefficient of 50 ppm/°C.

Voltage Reference Feature Summary

Programmable output voltage capability up to 36 V
Temperature compensated for operation across the full rated operating temperature range
Active output circuit provides sharp turn-on characteristics

Voltage Reference Applications

Shunt regulator circuits
Output control for three-terminal fixed regulators
High current shunt regulator designs
Current limit or current source applications
Constant-current sink implementations

Voltage Reference Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm package marking matches the SOT-23FL outline and date code format specified in the datasheet. Ensure compliance with RoHS standards as indicated in the ordering information section.

Voltage Reference Selection Notes

Select this component when precise voltage referencing is required in space-constrained surface-mount designs. The SOT-23FL package offers a compact footprint suitable for portable electronics. Consider the 1% initial accuracy tolerance if tighter voltage regulation is necessary compared to standard variants.

Voltage Reference Part Context

This part belongs to the LM431SA/SB/SC family of programmable shunt regulators. It serves as a direct replacement for Zener diodes in many applications due to its active output circuit and low dynamic output impedance. The 'I' suffix denotes the extended industrial temperature range variant.