TLVH432CDBZT

Overview

The TLVH432CDBZT is a low-voltage adjustable precision shunt regulator from Texas Instruments, housed in an SOT-23-3 package. It features a standard grade initial accuracy of 1.5% at 25°C and a temperature coefficient of 138 PPM/°C. The device operates with a reference voltage range from 1.24V to 18V and supports a maximum series VREF input voltage of 20V. It functions within a wide cathode current range, with a minimum of 80 µA and a maximum of 80 mA. The component is rated for operation between -40°C and +125°C.

Feature Summary

• Adjustable output voltage capability ranging from the internal reference level up to 18V
• Precision stability with standard grade tolerance of 1.5% at 25°C
• Wide operating temperature range suitable for industrial environments

Applications

• Battery-powered systems requiring precise voltage monitoring
• Portable equipment utilizing low-voltage power supplies
• General-purpose voltage regulation in compact designs

Procurement Notes

Verify the specific grade (Standard, A, or B) required for your application, as accuracy varies by suffix. Confirm the SOT-23-3 package compatibility with your PCB footprint. Ensure the cathode current requirements fall within the 80 µA to 80 mA operational window. Check RoHS compliance status if environmental regulations apply to your manufacturing process.

Selection Notes

Select this component when a low-dropout, adjustable shunt regulator is needed in a small form factor. The 1.5% accuracy is suitable for general applications, while higher grades are available for tighter tolerances. Consider the 20V maximum input voltage limit when designing circuits with higher supply rails. The wide temperature range makes it appropriate for harsh environments.

Part Context

This part belongs to the TLVH43x family of low-voltage adjustable precision shunt regulators. It serves as a cost-effective alternative to traditional Zener diodes, offering better stability and lower impedance. The family includes variants with different accuracy grades and fixed reference options, all sharing the same compact SOT-23-3 packaging for space-constrained designs.

Replacement Considerations

Direct substitutes include other TLVH432 variants with different accuracy grades or packaging options. Cross-reference with similar low-voltage shunt regulators from other manufacturers, ensuring pinout compatibility and electrical parameter alignment.