TLV431BIDBZRG4

Overview

The TLV431BIDBZRG4 is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within an input voltage range of up to 7 V and provides an adjustable output voltage from 1.24 V to 6 V. The device features an initial accuracy of 0.5% and a maximum temperature coefficient of 138 ppm/°C. It supports a maximum shunt current of 15 mA with a minimum operating current of 80 µA. The component is housed in a SOT-23-3 surface-mount package and functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Provides high-precision voltage regulation with 0.5% initial accuracy for stable reference applications.
• Designed for low-voltage systems with a maximum input voltage rating of 7 V.
• Operates over an extended industrial temperature range from -40°C to +125°C.

Applications

• Precision voltage references in battery-powered devices
• Feedback control loops in DC-DC converters
• Comparator circuits requiring accurate threshold levels

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS status as per manufacturer documentation. Confirm the SOT-23-3 package dimensions match PCB footprint requirements. Ensure the 15 mA maximum shunt current capability meets circuit load demands. Check that the 7 V maximum input voltage aligns with system supply rails. Validate the -40°C to +125°C operating range against environmental conditions.

Selection Notes

Select this component when low-voltage operation under 7 V is required, distinguishing it from standard TL431 variants rated for higher voltages. Choose based on the need for 0.5% accuracy and wide temperature stability. Consider the SOT-23-3 package for space-constrained surface-mount designs. Verify compatibility with the 1.24 V to 6 V adjustable output range for specific feedback network configurations.

Part Context

This part belongs to the TLV431B series of low-voltage adjustable precision shunt regulators from Texas Instruments. It serves as a modern alternative to traditional zener diodes or higher-voltage references in compact power management designs. The device integrates a bandgap reference and error amplifier to maintain precise output regulation.

Replacement Considerations

Direct substitutes include other TLV431B series variants such as TLV431BIDBZR or TLV431BQDBZRG4, provided pinout and electrical specifications match. Cross-reference with TLV431A series if lower accuracy (1%) is acceptable. Verify package compatibility for SOT-23-3 replacements.