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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% 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：0°C ~ 70°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 SC431LCSK-.5TRT is an adjustable shunt voltage reference manufactured by Semtech Corporation. It operates within a cathode current range of 100 µA to 100 mA and provides an adjustable output voltage from 1.24 V to 16 V. The device features an initial accuracy tolerance of ±0.5%. Designed for surface mount applications, it is housed in a SOT-23-3 package (TO-236-3/SC-59). The component functions within a temperature range of 0°C to +70°C.
Feature Summary
- Adjustable output voltage capability via external resistors
- High precision with ±0.5% initial accuracy tolerance
- Low dynamic output impedance for stable regulation
Applications
- Linear regulators
- Switching power supplies
- Battery operated computers
- Instrumentation systems
Procurement Notes
Verify the obsolete status of this component before design finalization. Confirm that the SOT-23-3 package dimensions match your PCB footprint requirements. Ensure the 16 V maximum output voltage meets your circuit specifications. Check for RoHS compliance documentation if required by your manufacturing standards. Validate availability through authorized distributors as stock levels may be limited.
Selection Notes
Select this component when a precise, low-cost shunt regulator is needed for voltage referencing or simple regulation tasks. The SOT-23-3 package suits space-constrained designs. Consider the 100 mA maximum cathode current limit for load requirements. The 0.5% accuracy is suitable for general-purpose applications rather than high-precision metrology.
Part Context
This part belongs to the SC431 series of three-terminal adjustable shunt regulators. It serves as a functional alternative to standard TL431 devices but offers specific packaging and accuracy variations. The LC5SK suffix indicates the specific trim level and package type within Semtech's portfolio.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Semtech technical support for qualified replacements due to the component's discontinued status.
