TL432BCDBVR

Overview

The TL432BCDBVR is an adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a supply voltage range of 2.495 V to 36 V and features an initial accuracy of 0.5%. The device has a maximum input voltage of 37 V and supports a maximum shunt current of 100 mA. It utilizes a SOT-23-5 surface-mount package and functions within a temperature range of 0°C to +70°C.

Feature Summary

• Provides adjustable output voltage via external resistors
• Offers high precision with 0.5% initial accuracy
• Supports up to 100 mA shunt current for load regulation

Applications

• Board-level voltage regulation
• Adjustable power supplies
• Switching power supply feedback loops

Procurement Notes

Verify component authenticity through authorized channels as the part status is listed as obsolete. Confirm package integrity and pin alignment against the SOT-23-5 specification before integration. Ensure environmental compliance requirements match project standards given the discontinuation status.

Selection Notes

Select this component when precise shunt regulation is required in compact designs. The SOT-23-5 package suits space-constrained PCB layouts. Verify that the 0°C to +70°C operating range meets application thermal conditions. Consider alternative packages if higher current or wider temperature ranges are needed.

Part Context

This device belongs to the TL432 series, which shares electrical characteristics with the TL431 but uses different pin configurations for DBV, DBZ, and PK packages. It serves as a drop-in replacement for Zener diodes in many applications while offering superior stability and adjustability.

Replacement Considerations

Check for direct substitutes like TL431BCDBVR, noting pinout differences. Evaluate TL432 variants with extended temperature ranges if operating conditions exceed 70°C.