LM431SBCMFX

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

SKU:f7bc43a7b173 Category: Voltage Reference Brand: onsemi

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Product introduction

LM431SBCMFX 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 LM431SBCMFX

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：-25°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 LM431SBCMFX

LM431SBCMFX

Voltage Reference Overview

The LM431SBCMFX is a three-terminal programmable shunt regulator manufactured by onsemi. It provides an adjustable output voltage ranging from approximately 2.5 V to 36 V using two external resistors. The device features a typical dynamic output impedance of 0.2 Ω and supports a cathode current range of 1.0 mA to 100 mA. It offers a reference input voltage tolerance of 1% and operates within a temperature range of -25°C to +85°C. The component utilizes a SOT-23FL surface-mount package.

Voltage Reference Feature Summary

Programmable output voltage capability up to 36 V
Temperature compensated for full rated operating range
Fast turn-on response characteristic

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 the specific suffix 'MFX' corresponds to the SOT-23FL 3L tape and reel packaging configuration. Confirm that the 1% output voltage tolerance meets system requirements. Check for discontinued status updates as the datasheet indicates potential availability changes for this product line.

Voltage Reference Selection Notes

Select this component when a precise 1% voltage reference accuracy is required in a compact surface-mount footprint. Ensure the application circuit maintains the cathode current between 1 mA and 100 mA for proper regulation. Verify thermal dissipation limits if operating near maximum voltage differentials.

Voltage Reference Part Context

This part belongs to the LM431SA/SB/SC family of programmable shunt regulators. The 'SB' designation indicates a 1% initial accuracy, while the 'MFX' suffix specifies the SOT-23FL package with tape and reel shipping. It serves as a direct replacement for standard Zener diodes in precision voltage reference applications.