TLVH432IPKG3

Overview

The TLVH432IPKG3 is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a supply voltage range of 2.5 V to 20 V, providing an adjustable output voltage from 1.24 V to 18 V. The device features an initial accuracy of 1% and maintains a temperature coefficient of 138 ppm/°C across the industrial temperature range of -40°C to +125°C. It supports a maximum cathode current of 80 mA with a minimum operating current of 80 µA. Packaged in a SOT-89-3 surface-mount format, it serves as a stable reference for power management circuits.

Feature Summary

• Adjustable output voltage capability spanning 1.24 V to 18 V via external resistor divider
• High initial accuracy of 1% ensuring precise voltage regulation
• Wide operating temperature range supporting -40°C to +125°C environments
• Low minimum operating current of 80 µA suitable for power-constrained designs

Applications

• Battery-operated equipment requiring precise voltage monitoring
• Switch-mode power supplies utilizing feedback loop stabilization
• Data acquisition systems needing stable reference voltages
• Power management ICs integrated into portable electronic devices

Procurement Notes

Verify component authenticity through authorized Texas Instruments distributors or certified partners. Confirm package marking codes match the SOT-89-3 specification and check lot dates against moisture sensitivity level requirements. Ensure handling procedures comply with JESD standards for lead-free components to prevent damage during assembly.

Selection Notes

Select this component when designing circuits requiring adjustable shunt regulation with high precision in compact form factors. Consider the 1% initial accuracy and thermal stability for applications demanding tight voltage tolerances. Evaluate the 80 mA sink capability against load requirements and ensure the SOT-89-3 package fits the PCB layout constraints compared to larger alternatives.

Part Context

This part belongs to the TLVH432 series of low-voltage adjustable shunt regulators. It complements fixed-reference devices by offering programmable output settings while maintaining similar thermal and electrical performance characteristics. The series is designed for modern electronics where space efficiency and power consumption are critical design parameters.

Replacement Considerations

Direct substitutes include the TLVH432AIPK and TLVH432BIPK variants within the same family, which share identical pinouts and functional specifications but may differ in initial accuracy grades.