TLV431CSN1T1G

$0.64

Description：IC VREF SHUNT ADJ 0.2% SOT23-3
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:09cdb2ed4765 Category: Voltage Reference Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT ADJ 0.2% SOT23-3
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Adjustable
Voltage - Output (Min/Fixed)：1.24V
Voltage - Output (Max)：16 V
Current - Output：20 mA
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：SOT-23-3 (TO-236)
Grade：-
Qualification：-

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TLV431CSN1T1G

Overview

The TLV431CSN1T1G is a precision low voltage adjustable shunt regulator from onsemi, featuring a programmable output voltage range of 1.24 V to 16 V. It belongs to the C series with a guaranteed reference accuracy of ±0.2% at 25 °C and ±1.0% over the industrial temperature range of −40 °C to 85 °C. The device exhibits a sharp low current turn-on characteristic and a low dynamic output impedance of 0.20 Ω from 100 μA to 20 mA. It operates within a wide cathode current range of 50 μA to 20 mA and is housed in a micro miniature SOT-23-3 package.

Feature Summary

Precision voltage reference with high initial accuracy for stable regulation
Sharp low current turn-on characteristic enabling efficient operation at minimal currents
Low dynamic output impedance ensuring consistent performance across operating ranges
Micro miniature surface mount packaging suitable for space-constrained designs

Applications

Low output voltage switching power supply error amplifier
Adjustable voltage or current linear and switching power supplies
Voltage monitoring circuits
Current source and sink circuits
Low voltage Zener diode replacements

Procurement Notes

Verify that the ordering suffix SN1T1G corresponds to the SOT-23-3 package and tape & reel shipping configuration as listed in the official onsemi ordering information. Confirm that the 'C' series designation matches the required ±0.2% accuracy specification for your design. Ensure compatibility with the specified operating temperature range of −40 °C to 85 °C for industrial applications.

Selection Notes

Select this component when high precision is required for shunt regulation applications. The C series offers superior accuracy compared to A and B series variants. Consider the SOT-23-3 package for compact PCB layouts. Verify that the operating current requirements fall within the 50 μA to 20 mA range to ensure proper regulation and stability characteristics are maintained.

Part Context

This device is part of the TLV431 family of low voltage precision adjustable shunt regulators. It serves as a direct replacement for traditional Zener diodes in circuits requiring precise reference voltages. The family includes variants with different accuracy grades (A, B, C) and automotive qualified prefixes (NCV, SCV). It is commonly used in feedback loops for isolated power supplies when combined with an optocoupler.