TLVH432ACPK

Overview

The TLVH432ACPK is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a supply 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 1% and a temperature coefficient of 138 PPM/°C. It supports a maximum cathode current of 80 mA with a minimum operating current of 80 µA. The component functions reliably across an extended temperature range of -40°C to +125°C and is housed in a surface-mount SOT-89-3 package.

Feature Summary

• Provides adjustable reference voltage functionality suitable for precision applications
• Operates at low voltages with high thermal stability over extended industrial ranges
• Delivers precise regulation with defined initial accuracy specifications

Applications

• Battery-powered equipment requiring stable reference voltages
• Portable devices utilizing low-voltage power supplies
• Industrial control systems needing reliable shunt regulation

Procurement Notes

Verify the specific suffix 'CPK' against official Texas Instruments documentation to confirm the exact package variant and tape-and-reel configuration. Ensure the selected part meets the required AEC-Q100 qualification if automotive compliance is necessary, as standard variants may differ. Cross-reference the datasheet revision date to ensure compatibility with current manufacturing standards and environmental directives.

Selection Notes

Select this component when a low-voltage adjustable shunt regulator is required with a maximum input of 20 V. The 1% initial accuracy makes it suitable for circuits demanding tighter tolerance than standard 2% references. Consider the SOT-89-3 package for space-constrained designs where higher current handling than SOT-23 options is needed but larger packages are unavailable.

Part Context

This device belongs to the TLVH432 family of low-voltage adjustable precision shunt regulators. It serves as a modern alternative to traditional bandgap references, offering improved performance in low-voltage environments. The family includes variants with different accuracies and qualifications, positioning this part as a specialized solution for cost-sensitive yet precision-critical power management applications.

Replacement Considerations

Direct substitutes include other TLVH432 series parts with matching accuracy and package, such as TLVH432AQPK or TLVH432AIPK, provided the qualification grade matches the application requirements.