TLV431CDBVT

Overview

The TLV431CDBVT 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 features an initial accuracy of ±1.5%. The device supports a maximum cathode current of 15 mA and has a maximum reference input voltage of 7 V. It functions across a temperature range of 0°C to 70°C in a SOT-23-5 surface-mount package.

Feature Summary

• Provides stable, adjustable voltage reference functionality via external resistor divider networks
• Ensures precise regulation with specified initial accuracy for sensitive circuit applications
• Operates as a three-terminal shunt regulator suitable for low-voltage power management

Applications

• Precision voltage references in portable electronic devices
• Feedback control loops in switching power supplies
• Comparator circuits requiring accurate threshold levels

Procurement Notes

Verify the specific suffix 'C' denotes the ±1.5% accuracy grade and commercial temperature range (0°C to 70°C). Confirm the SOT-23-5 package designation matches the target PCB footprint. Ensure the component meets RoHS compliance requirements for the intended assembly process. Cross-reference the manufacturer part number against official datasheets to confirm availability status.

Selection Notes

Select this component when a low-cost, adjustable shunt regulator with moderate accuracy is required. The ±1.5% tolerance suits general-purpose applications where tighter precision is unnecessary. Consider the 15 mA current limit for load driving capabilities. Evaluate the commercial temperature range against environmental operating conditions before finalizing the design.

Part Context

This device belongs to the TLV431 family of low-voltage adjustable precision shunt regulators from Texas Instruments. It serves as a drop-in replacement for traditional Zener diodes in many reference applications. The family includes variants with different accuracy grades and temperature ranges, such as the TLV431A and TLV431B, offering flexibility for various design specifications.

Replacement Considerations

Direct substitutes include the TLV431CDBVTG4, which shares identical electrical characteristics and packaging. Other compatible options within the same series may offer different accuracy grades or extended temperature ranges depending on specific application needs.