TLV431BSN1T1

Description：IC VREF SHUNT ADJ 0.5% SOT23-3
Series：-
Mfr：onsemi
Package：Tape & Reel (TR)

SKU:895759d50d4d Category: Voltage Reference Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT ADJ 0.5% SOT23-3
Series：-
Mfr：onsemi
Package：Tape & Reel (TR)
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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TLV431BSN1T1

Overview

The TLV431BSN1T1 is a precision low voltage adjustable shunt regulator from onsemi, housed in an SOT-23-3 package. It features a reference accuracy of ±0.5% at 25°C and ±1.0% over the -40°C to 85°C temperature range. The device operates with a cathode current range of 0.1 mA to 20 mA and supports a programmable output voltage range from 1.24 V to 16 V. It exhibits a sharp low current turn-on characteristic and a dynamic impedance of 0.25 Ω.

Feature Summary

Precision adjustable shunt regulator with high initial accuracy
Sharp low current turn-on characteristic for efficient regulation
Low dynamic output impedance across operating current range
Micro miniature surface mount packaging

Applications

Error amplifier for isolated low output voltage switching power supplies
Adjustable voltage or current linear and switching power supplies
Voltage monitoring circuits
Current source and sink applications
Low voltage zener diode replacements

Procurement Notes

Verify the specific ordering suffix SN1T1 corresponds to the SOT-23-3 tape and reel configuration. Confirm that the B series designation matches the required ±0.5% accuracy specification. Ensure the component meets Pb-Free requirements if applicable to the assembly process. Cross-reference the manufacturer part number against official datasheets to validate authenticity and revision status before procurement.

Selection Notes

Select this component when precise voltage referencing is required in compact designs. The B series offers tighter tolerance than the A series. Verify stability boundaries regarding load capacitance and equivalent series resistance for the specific application environment. Consider the thermal characteristics and maximum ratings to ensure reliable operation within the specified ambient temperature range.

Part Context

This device belongs to the TLV431A/B family of low voltage precision adjustable shunt regulators. It serves as a direct replacement for standard Zener diodes where higher accuracy and lower dynamic impedance are necessary. The family includes various package options such as TO-92-3, TSOP-5, and SOT-23-3 to accommodate different board space constraints.