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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.25% SOT23-3
- Series：-
- Mfr：Semtech Corporation
- Package：Tape & Reel (TR)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：1.24V
- Voltage - Output (Max)：16 V
- Current - Output：100 µA
- 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
- Grade：-
- Qualification：-
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Overview
The SC431LISK.25TRT is an adjustable shunt voltage reference manufactured by Semtech Corporation, housed in a surface-mount SOT-23-3 package. It provides an output voltage range from 1.24 V to 20 V with an initial accuracy of ±0.25%. The device operates with a cathode current ranging from 100 µA to 100 mA and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Provides high precision voltage regulation with ±0.25% initial accuracy for stable reference applications.
- Features an adjustable output voltage capability spanning from 1.24 V up to 20 V via external resistors.
- Designed for low-power operation with a minimum operating cathode current of 100 µA.
Applications
- Precision analog-to-digital converter (ADC) reference sources
- Portable battery-powered instrumentation circuits
- Linear regulator feedback networks requiring tight tolerance
Procurement Notes
Verify the exact suffix designation against official Semtech documentation, as variations exist within the SC431LISK family. Confirm availability status, as specific variants may be discontinued or subject to limited supply constraints. Ensure the selected component matches the required accuracy grade and temperature rating for the target application environment before finalizing procurement orders.
Selection Notes
Select this component when a compact SOT-23-3 footprint is required alongside high accuracy specifications. Compare the ±0.25% tolerance against standard 1% or 2% variants if cost reduction is prioritized over precision. Ensure the design accommodates the 100 µA minimum cathode current requirement to maintain regulation stability across the full operating temperature range.
Part Context
This part belongs to the SC431LISK series of low-voltage shunt regulators produced by Semtech. These devices are engineered to replace traditional Zener diodes in power management circuits, offering superior temperature stability and lower dynamic impedance compared to discrete solutions.
Replacement Considerations
Publicly confirmed substitute part numbers for this specific variant are not available in the provided source material. Verify compatibility with generic TL431-family replacements only if electrical parameters such as output voltage range and package type align precisely with the original design requirements.
