ATL432BQDBZR

Overview

The ATL432BQDBZR is a low quiescent current adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a supply voltage range of 2.5 V to 36 V and provides an adjustable output voltage. The device features an initial accuracy of ±0.5% and supports a maximum cathode current of 100 mA. It is housed in a SOT-23-3 package and is rated for operation between -40°C and +125°C.

Feature Summary

• Adjustable precision shunt regulation with low quiescent current consumption
• High initial accuracy for stable reference performance
• Wide operating temperature range suitable for industrial environments

Applications

• Battery-powered equipment requiring low standby current
• Portable instrumentation circuits
• Power supply feedback loops

Procurement Notes

Verify the specific suffix DBZR corresponds to the required tape-and-reel packaging configuration. Confirm that the automotive-grade qualification indicated by the Q suffix aligns with your system reliability standards. Ensure the SOT-23-3 footprint matches your PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when precise voltage referencing is required alongside minimal power consumption. The wide input voltage range allows flexibility in circuit design without additional level shifting. Consider the thermal characteristics of the SOT-23-3 package for high-current applications within the specified limits.

Part Context

This part belongs to the ATL432 family of programmable shunt regulators designed for automotive and industrial applications. It serves as a low-power alternative to standard zener diodes, offering superior stability and adjustability. The device integrates a bandgap reference and error amplifier in a compact surface-mount package.

Replacement Considerations

Direct substitutes include TLVH432BQDBZR and TL432LIBQDBZR from Texas Instruments. Verify pin compatibility and electrical parameter alignment before substitution.