TLVH431BCDCKR

Overview

The TLVH431BCDCKR is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within an input voltage range of up to 20 V and provides an adjustable output voltage from 1.24 V to 18 V. The device features an initial accuracy of ±0.5% and a maximum temperature coefficient of 138 ppm/°C. It supports a cathode current range from 100 µA to 70 mA. The component is housed in a SC-70-6 surface-mount package and is rated for operation between 0°C and 70°C.

Feature Summary

• Adjustable output voltage capability spanning from 1.24 V to 18 V
• High initial accuracy of ±0.5% for precise reference applications
• Low-voltage operation with a maximum input voltage of 20 V
• Compact SC-70-6 surface-mount packaging for space-constrained designs

Applications

• Battery-powered portable devices requiring stable voltage references
• Microcontroller power supply monitoring circuits
• Linear regulator feedback networks
• Comparator reference voltage sources

Procurement Notes

Verify the specific suffix (CDCKR) against the manufacturer's latest documentation to confirm the exact package type, tape-and-reel quantity, and RoHS compliance status. Ensure the operating temperature range aligns with your system requirements, as this variant is specified for commercial temperatures. Cross-reference the part number with official distributors to confirm current availability and lead times.

Selection Notes

Select this component when a compact, low-cost adjustable shunt regulator is needed for commercial-grade applications. It is suitable for designs requiring ±0.5% accuracy and operation below 20 V. Consider alternative packages like SOT-23-5 if higher thermal performance or automotive qualification is required. Verify that the 70 mA cathode current limit meets the load requirements of the target circuit.

Part Context

This part belongs to the TLVH431 family of low-voltage adjustable precision shunt regulators. It serves as a drop-in replacement for standard TL431 devices in low-voltage applications, offering improved performance at lower supply voltages. The family includes variants with different accuracies, packages, and temperature ratings to suit various industrial and consumer electronics needs.

Replacement Considerations

Check for direct substitutes such as TLVH431BQDCKRG4 for automotive-grade requirements or TLVH431BCDBVTE4 for SOT-23-5 packaging compatibility. Ensure pinout and electrical characteristics match before substitution.