TL432IDBVRG4

Overview

The TL432IDBVRG4 is an adjustable precision shunt regulator manufactured by Texas Instruments, housed in a SOT-23-5 surface-mount package. It provides an adjustable output voltage range from 2.495 V to 36 V with an initial accuracy of 2.2% at 25°C. The device supports a maximum shunt current of 100 mA and operates within a temperature range of -40°C to +85°C. It features a typical dynamic impedance of 0.2 Ω and is RoHS compliant.

Feature Summary

• Adjustable output voltage capability spanning from the internal reference level up to 36 V via external resistors
• High precision performance with specified initial accuracy for stable regulation
• Robust thermal stability maintained across extended commercial and industrial temperature ranges

Applications

• Board-level voltage regulation circuits
• Adjustable power supply designs
• Switching power supply feedback loops
• Replacement for Zener diodes in precision applications

Procurement Notes

Verify the G4 suffix indicates lead-free and RoHS compliance status per manufacturer documentation. Confirm the SOT-23-5 package type matches PCB footprint requirements. Check for end-of-life or obsolescence notices as availability may vary. Ensure operating temperature range meets specific application environmental constraints before procurement.

Selection Notes

Select this component when a compact three-terminal adjustable shunt regulator is required in a small surface-mount form factor. It serves as a direct functional equivalent to the TL431 but utilizes a different pinout configuration suitable for SOT-23-5 layouts. Consider its 100 mA current handling capacity for load requirements and verify that the 2.2% initial accuracy suffices for the target circuit tolerance.

Part Context

This device belongs to the TL432 family of adjustable precision shunt regulators from Texas Instruments. It shares core electrical characteristics with the TL431 series but differs in physical packaging and pin arrangement. The TL432 series is designed to offer improved thermal stability and lower output impedance compared to standard Zener diodes, making it suitable for high-performance analog and power management applications.

Replacement Considerations

The TL432IDBVR is a compatible alternative part number within the same family. Verify pin compatibility if replacing TL431 variants, as the TL432 uses a distinct SOT-23-5 pinout. Ensure any substitute maintains the required 2.2% accuracy and 100 mA current rating.