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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% SOT23-3
- Series：-
- Mfr：Semtech Corporation
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.495V
- Voltage - Output (Max)：30 V
- Current - Output：130 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 SC431CSK-.5TRT is a three-terminal adjustable shunt voltage reference manufactured by Semtech Corporation. It features a trimmed bandgap design with an initial accuracy of ±0.5%. The device operates within a cathode current range of 130µA to 150mA and provides a typical dynamic output impedance of 0.25Ω. The output voltage is adjustable from the internal reference level up to 30V using two external resistors. It is housed in a SOT-23-3 surface-mount package and supports an industrial temperature range.
Feature Summary
- Trimmed bandgap architecture ensures high thermal stability across the operating temperature range.
- Active output circuitry delivers sharp turn-on characteristics for reliable switching performance.
- Low dynamic output impedance minimizes voltage fluctuations during load changes.
Applications
- Switching power supplies
- Linear regulators
- Adjustable power supplies
Procurement Notes
Verify component authenticity through authorized Semtech distributors or certified agents. Confirm the specific suffix matches the required tolerance and packaging format. Check for RoHS and WEEE compliance status relevant to your region. Ensure the source provides valid traceability documentation for quality assurance purposes.
Selection Notes
Select this component when precise voltage referencing is required in compact designs. The SOT-23-3 package suits space-constrained PCB layouts. Verify that the external resistor network can support the desired output voltage range. Ensure the application current requirements fall within the specified operational limits.
Part Context
This part belongs to the SC431 series of adjustable shunt regulators, serving as a functional alternative to standard TL431 devices. It integrates precision reference technology into a small footprint suitable for modern electronics manufacturing.
Replacement Considerations
Documented equivalents include TL1431, TL431, LM431, and AS431. Verify pinout compatibility and electrical specifications before substitution.
