TLV431IDBVR1G4

Overview

The TLV431IDBVR1G4 is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within an output voltage range of 1.24 V to 6 V and supports a maximum cathode current of 15 mA. The device features an initial accuracy of 1.5% and a maximum temperature coefficient of 138 ppm/°C. It functions with a maximum input voltage of 7 V and operates across a temperature range from -40 °C to +85 °C. The component is housed in a five-pin SOT-23 surface-mount package.

Feature Summary

• Three-terminal adjustable shunt regulator topology
• Low-power operation suitable for battery applications
• Internal reference voltage provides stable regulation

Applications

• Battery-powered equipment
• Portable instruments
• DC/DC converters

Procurement Notes

Verify the specific suffix '1G4' against the manufacturer's official documentation to confirm pinout, marking code (Y3I6), and compliance status. Ensure the selected package matches the required PCB footprint for the five-pin SOT-23 configuration. Cross-reference the datasheet revision history for any updates to electrical characteristics or recommended operating conditions prior to final design integration.

Selection Notes

Select this component when a low-cost, high-accuracy reference is required for space-constrained designs. The SOT-23-5 package offers a compact solution compared to larger through-hole alternatives. Consider the 1.5% initial accuracy and 138 ppm/°C temperature coefficient against application tolerance requirements. Verify that the 15 mA cathode current capability meets the load demands of the specific circuit topology.

Part Context

This part belongs to the TLV431 family of low-voltage adjustable precision shunt regulators. These devices serve as drop-in replacements for Zener diodes in many applications, offering superior performance in terms of accuracy and temperature stability. The family includes variants with different accuracies and packages, such as the TLV431A and TLV431B series, allowing designers to balance cost and performance based on specific system needs.

Replacement Considerations

Check for direct equivalents like the TLV431IDBVT or other TI shunt regulators with compatible pinouts and electrical specifications. Ensure substitute parts maintain the same package type and thermal characteristics.