SC431LISK-.5TRT

Overview

The SC431LISK-.5TRT is an adjustable low-voltage shunt regulator manufactured by Semtech Corporation. It provides a reference voltage output ranging from 1.24 V to 20 V with an initial accuracy of ±0.5%. The device operates within a cathode current range of 100 µA to 100 mA and functions at temperatures between -40°C and +85°C. Packaged in a SOT-23-3 surface-mount case, it serves as a precision voltage reference component.

Feature Summary

• Adjustable shunt regulation capability across a wide voltage range
• High initial accuracy for precise voltage referencing
• Low quiescent current operation suitable for battery-powered applications

Applications

• Precision voltage references in measurement systems
• Voltage regulation in portable electronic devices
• Battery management system monitoring circuits

Procurement Notes

Verify the exact suffix designation against official Semtech documentation to confirm the specific tolerance grade and temperature rating. Ensure compatibility with existing PCB footprints and thermal requirements before integration. Confirm end-of-life status and availability through authorized channels.

Selection Notes

Select this component when high accuracy and low power consumption are critical. Compare the ±0.5% initial accuracy against other series variants like the -1% or -2% versions. Consider the operating temperature range and package size constraints relative to the target application environment.

Part Context

This part belongs to the SC431LISK series of low-voltage shunt regulators. It shares the fundamental architecture with other SC431 variants but offers tighter initial accuracy specifications. The series is designed for compact, cost-effective voltage regulation solutions in modern electronics.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.