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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：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-.25TR is a low-voltage shunt adjustable voltage reference manufactured by Semtech Corporation. It operates within an output voltage range of 1.24 V to 16 V and features an initial accuracy tolerance of ±0.25%. The device supports a cathode current range from 100 µA to 100 mA and functions reliably across a temperature range of 0°C to +70°C. Packaged in a surface-mount SOT-23-3 format, it serves as a precision reference component for power management applications.
Feature Summary
- Provides high-precision voltage referencing with tight initial accuracy tolerance
- Operates as an adjustable shunt regulator with wide output voltage flexibility
- Designed for surface-mount integration in compact electronic assemblies
Applications
- Precision analog signal conditioning circuits
- Battery-powered equipment requiring stable reference voltages
- Portable instrumentation and measurement devices
Procurement Notes
This component is officially listed as obsolete or discontinued by the manufacturer. Verification of availability requires checking authorized distributors for remaining stock or surplus inventory. Ensure that any sourced units are genuine and match the specific package and tolerance specifications required for your design implementation.
Selection Notes
Select this part when a highly accurate adjustable shunt reference is needed in a small footprint. The ±0.25% tolerance distinguishes it from standard variants. Verify that the 16 V maximum output and 100 mA current limits align with your circuit requirements before finalizing the design.
Part Context
Part of the SC431LC series, which offers various accuracy grades including 0.5%, 2%, and 0.25%. This specific suffix denotes the highest precision tier within the low-voltage shunt regulator family, packaged in SOT-23-3 for space-constrained designs.
Replacement Considerations
Verify compatibility with other SC431LC variants such as SC431LCSK-.5TRT or SC431LCSK-2TRT if higher tolerance is acceptable. Cross-reference with equivalent shunt references from other manufacturers ensuring matching pinout and electrical characteristics.
