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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-25TRT is a shunt adjustable voltage reference manufactured by Semtech. 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 at temperatures between 0°C and +70°C. It is housed in a surface-mount SOT-23-3 package.
Feature Summary
- Provides adjustable shunt regulation with high initial accuracy
- Operates over a wide cathode current range for flexible biasing
- Designed for surface-mount integration in compact layouts
Applications
- Precision voltage reference circuits
- Portable electronic devices requiring stable references
- Battery-powered instrumentation systems
Procurement Notes
This component is officially listed as obsolete or discontinued by the manufacturer. Availability is restricted to existing stock or secondary market sources. Verify end-of-life status and lead times carefully before design finalization, as supply continuity cannot be guaranteed through standard distribution channels.
Selection Notes
Select this part when a low-profile SOT-23-3 package is required alongside tight ±0.25% accuracy specifications. Ensure the application environment remains within the 0°C to +70°C operating temperature range. Consider alternative active components if long-term supply stability is a critical project requirement due to the obsolete status.
Part Context
The SC431 series represents a family of two-terminal shunt voltage references. This specific model utilizes the LC5SK suffix to denote the precise accuracy grade and packaging configuration. It serves as a cost-effective solution for applications needing a stable reference voltage without the complexity of three-terminal regulators.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official replacement guides or contact the manufacturer directly for qualified alternatives.
