LM431CIMX

$0.71

Description：IC VREF SHUNT ADJ 0.5% 8SOIC
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Tape & Reel (TR),Cut Tape (CT)

SKU:5f416c1ff0b6 Category: Voltage Reference Brand: onsemi

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Product introduction

LM431CIMX is listed in the Voltage Reference range at ChipApex. The manufacturer field lists onsemi. Its product description is IC VREF SHUNT ADJ 0.5% 8SOIC. Review the specifications below when checking this part for your BOM.

Voltage Reference specifications for LM431CIMX

Description：IC VREF SHUNT ADJ 0.5% 8SOIC
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),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：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOIC
Grade：-
Qualification：-

Voltage Reference datasheet and documents for LM431CIMX

LM431CIMX

Voltage Reference Overview

The LM431CIMX is a programmable shunt regulator manufactured by onsemi, housed in an SOT-23 surface-mount package. It functions as a three-terminal adjustable voltage reference with an output range spanning from approximately 2.5 V to 36 V. The device features a typical dynamic output impedance of 0.2 Ω and supports sink currents between 1.0 mA and 100 mA. It includes temperature compensation for stable operation across the rated industrial temperature range.

Voltage Reference Feature Summary

Programmable output voltage settable via two external resistors
Temperature compensated for full operating range stability
Low dynamic output impedance for precise regulation
Fast turn-on response suitable for zener diode replacement

Voltage Reference Applications

Precision voltage references in power supply circuits
On-board regulation for DC-to-DC converters
Replacing Zener diodes in comparator circuits

Voltage Reference Procurement Notes

Verify the manufacturer marking and date code against official onsemi documentation to confirm authenticity. Ensure the ordering suffix matches the specific tolerance and packaging requirements. Cross-reference the part number with the latest datasheet revision to confirm pinout compatibility and electrical specifications before integration into production designs.

Voltage Reference Selection Notes

Select this component when a compact, low-cost adjustable reference is required in an SOT-23 footprint. It serves as a direct functional alternative to TL431 devices where space constraints exist. Verify that the application current requirements fall within the 1 mA to 100 mA operational window to ensure proper regulation and thermal performance.

Voltage Reference Part Context

This device belongs to the LM431 family of programmable shunt regulators, widely used in analog circuit design. It provides a stable reference voltage derived from an internal bandgap reference structure. The LM431 series is commonly utilized in feedback loops for switching regulators and linear power supplies due to its accuracy and low cost.