TL432LIBCDBZR

Overview

The TL432LIBCDBZR is an adjustable precision shunt regulator manufactured by Texas Instruments, housed in a SOT-23-3 surface-mount package. It features an initial accuracy of ±0.5% and a temperature coefficient of 63 PPM/°C. The device supports a maximum series voltage of 36 V and operates within a temperature range of -40°C to +125°C. Maximum shunt current is rated at 15 mA, with a minimum operating current of 1 mA.

Feature Summary

• Provides high-precision voltage regulation with tight initial tolerance specifications
• Ensures stable reference performance across extended industrial temperature ranges
• Offers flexible output voltage configuration via external resistor networks

Applications

• Board-mounted voltage regulators
• Adjustable power supply circuits
• Switching power supply feedback loops

Procurement Notes

Verify the specific suffix LIBCDBZR to confirm the 0.5% accuracy grade and 63 PPM/°C temperature coefficient. Ensure the SOT-23-3 package matches the design footprint. Confirm RoHS compliance status for environmental requirements. Check manufacturing date codes against project timelines.

Selection Notes

Select this component when superior thermal stability and tighter initial accuracy are required compared to standard grades. The low temperature coefficient ensures minimal drift over wide operating ranges. Verify that the 15 mA current limit meets the circuit load requirements.

Part Context

This part belongs to the TL432LI family of adjustable shunt regulators. It shares functional similarities with the TL431 but utilizes a different pinout arrangement compatible with SOT-23 and DBZ packages. It serves as a direct replacement for Zener diodes in many applications requiring higher precision.

Replacement Considerations

Compatible substitutes include TL432ACDBZR and TL432BCDBZR, though these offer lower accuracy grades (1% and 2%). Ensure pin compatibility when substituting with other TL432 variants.