TLVH431BCDBZTG4

Overview

The TLVH431BCDBZTG4 is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within an input voltage range 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 maximum shunt current of 80 mA with a minimum operating current of 80 µA. The component is housed in a SOT-23-3 package and functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Adjustable output voltage capability spanning from 1.24 V to 18 V for flexible circuit design
• High precision performance characterized by 0.5% initial accuracy and low temperature drift
• Wide operational temperature range suitable for demanding industrial and automotive environments

Applications

• Precision voltage reference sources in battery-powered instrumentation
• Feedback control loops in DC-DC converters and power supplies
• Comparator threshold setting in analog signal processing circuits

Procurement Notes

Verify the specific suffix TG4 to confirm the tape and reel packaging configuration and lead-free status. Ensure the ordering part number matches the required SOT-23-3 package variant. Confirm availability status as supply conditions may vary. Validate that the component meets RoHS compliance requirements for your target market regulations before finalizing procurement orders.

Selection Notes

Select this component when a compact surface-mount solution is required for low-voltage precision regulation. The SOT-23-3 package offers space efficiency compared to larger alternatives. Consider the 80 mA current limit for load requirements. The wide temperature range makes it suitable for applications exceeding standard commercial limits without requiring additional thermal management.

Part Context

This part belongs to the TLVH431 family of low-voltage adjustable precision shunt regulators. It serves as a modern alternative to traditional three-terminal references, offering improved performance in small packages. The family includes variants with different accuracies and packages, such as the TLVH431BIDCKR in SC-70-6. This specific model focuses on balancing precision with compact form factor for portable electronics.

Replacement Considerations

Direct pin-compatible substitutes include other TLVH431 variants like TLVH431ACDBZTG4 or TLVH431AIDBZTG4, though accuracy and temperature coefficients may differ. Cross-family replacements such as TL431 require careful evaluation of voltage ranges and current capabilities.