TLVH431ACDBVTG4

Overview

The TLVH431ACDBVTG4 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 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 161 ppm/°C. It supports a maximum cathode current of 70 mA with a minimum operating current of 100 µA. The component is housed in a SOT-23-5 package, rated for operation between -40°C and +85°C, and complies with RoHS standards.

Feature Summary

• Adjustable reference voltage capability spanning from 1.24 V up to 18 V
• High precision performance with 1% initial accuracy specification
• Low power consumption characterized by minimal operating current requirements

Applications

• Portable battery-powered equipment requiring precise voltage regulation
• Power supply circuits utilizing adjustable shunt regulation topologies
• Temperature compensation networks in analog signal conditioning systems

Procurement Notes

Verify the specific suffix G4 indicates lead-free and RoHS compliance status prior to procurement. Confirm the active lifecycle status through official Texas Instruments channels as availability may vary. Ensure the SOT-23-5 package dimensions match the target PCB footprint design constraints. Validate that the 1% accuracy grade meets the strict tolerance requirements of the intended application circuit.

Selection Notes

Select this component when a low-voltage adjustable reference is required with tight initial accuracy tolerances. The SOT-23-5 package offers a compact solution for space-constrained designs compared to larger packages. Consider the 70 mA cathode current limit when designing load conditions. The wide input voltage range allows flexibility in various single-supply configurations without additional level shifting.

Part Context

This part belongs to the TLVH431B family of low-voltage adjustable precision shunt regulators. It serves as a high-performance alternative to standard Zener diodes in voltage reference applications. The series is designed for cost-sensitive consumer electronics and industrial control systems requiring stable reference voltages under varying thermal conditions.

Replacement Considerations

Direct substitutes include the TLVH431ACDBVR and TLVH431ACDBVRE4 variants which share identical electrical characteristics and pinouts. Verify package compatibility and ensure the replacement maintains the same 1% accuracy grade and temperature coefficient specifications.