SC431CS-2.TRT

Overview

The SC431CS-2.TRT is an adjustable shunt voltage reference manufactured by Semtech Corporation, housed in a SOT-23-3 surface-mount package. It functions as a three-terminal regulator with an output voltage range of 1.24 V to 20 V. The device features an initial accuracy of 2% and supports a cathode current range from 100 µA to 100 mA. It operates within a temperature range of -40°C to +85°C and includes no shutdown functionality.

Feature Summary

• Adjustable output voltage capability using two external resistors
• Low dynamic output impedance for stable regulation
• Trimmed bandgap design ensuring thermal stability

Applications

• Linear regulators
• Switching power supplies
• Instrumentation circuits

Procurement Notes

Verify component authenticity through authorized channels due to potential availability constraints. Confirm RoHS compliance status prior to integration. Validate package marking against official datasheet specifications to prevent counterfeit substitution during procurement processes.

Selection Notes

Select this component when precise low-voltage referencing is required in compact designs. Ensure circuit topology accommodates the specified minimum cathode current of 100 µA for proper regulation. Verify that the 2% initial accuracy meets system tolerance requirements without additional trimming.

Part Context

This part belongs to the SC431 series of adjustable shunt regulators. It serves as a direct replacement for standard TL431-type references in space-constrained applications. The SOT-23-3 package allows for high-density PCB layouts while maintaining electrical performance comparable to larger packages.

Replacement Considerations

Compatible substitutes include SC431LISK-1TRT and SC431LCSK-2TRT. Verify pinout compatibility and ensure operating temperature ranges align with specific application environmental conditions before substitution.