TLVH431MIL3T

Overview

The TLVH431MIL3T is an adjustable shunt voltage reference manufactured by STMicroelectronics. It provides an output voltage range from 1.24 V to 18 V, set via external resistors. The device features a typical dynamic impedance of 0.22 Ω and operates with a cathode current range of 100 µA to 60 mA. It offers 1% initial accuracy and a maximum temperature coefficient of 100 ppm/°C over the -40°C to +125°C operating temperature range. The component is housed in a SOT-23-3L surface-mount package.

Feature Summary

• Adjustable output voltage capability ranging from 1.24 V to 18 V using external resistor dividers
• Low power operation with a minimum operating current of 100 µA at 25 °C
• High precision voltage stability with 1% initial accuracy and low temperature drift
• Robust thermal performance ensuring guaranteed stability across the full industrial temperature range

Applications

• Battery chargers
• Switch mode power supplies
• Battery operated equipment
• Data acquisition systems
• Computers

Procurement Notes

Verify the specific suffix 'M' indicates the 1% accuracy grade when sourcing this part number. Confirm the 'L3T' designation corresponds to the SOT-23-3L package and tape-and-reel packaging format. Ensure compatibility with the required sink current capabilities for the target application circuit design.

Selection Notes

Select the TLVH431MIL3T for designs requiring space-saving surface mount solutions with precise voltage referencing. The 1% accuracy variant suits applications needing tighter tolerance than standard versions. Consider the low operating current for battery-powered devices where minimizing quiescent drain is critical for extended runtime.

Part Context

This component belongs to the TLVH431 series of low-power adjustable shunt voltage references. The series includes variants with different accuracy grades (0.25%, 0.5%, 1%, 1.5%) and packages (SOT-23-3L, SOT-23-5L, SOT-323-6L). The TLVH431MIL3T specifically denotes the 1% accuracy version in the compact SOT-23-3L package.

Replacement Considerations

Public confirmed substitutes include TLVH431AIL3T (0.25% accuracy), TLVH431BIL3T (0.5% accuracy), and TLVH431LIL3T (1.5% accuracy). These parts share identical pinouts and functional characteristics but differ in initial voltage precision specifications.