TL432AIPK

Overview

The TL432AIPK is an adjustable precision shunt voltage reference manufactured by Texas Instruments. It operates within a supply voltage range of 2.495 V to 36 V and provides an adjustable output voltage across the same span. The device features an initial accuracy tolerance of ±1% and supports a maximum cathode current of 80 µA with an output current capability of 100 mA. It is housed in a surface-mount SOT-89-3 package (TO-243AA) and is rated for operation over an ambient temperature range of -40°C to +85°C.

Feature Summary

• Adjustable output voltage ranging from 2.495 V to 36 V
• High initial accuracy with ±1% tolerance
• Low minimum cathode current requirement of 80 µA
• Surface-mount SOT-89-3 packaging

Applications

• Portable equipment power supplies
• Battery chargers
• DC-to-DC converters
• Control circuits

Procurement Notes

Verify the specific suffix 'A' indicates the ±1% accuracy grade when sourcing. Confirm the SOT-89-3 package type matches the design footprint. Check RoHS compliance status for environmental requirements. Ensure the operating temperature range meets the application's thermal constraints.

Selection Notes

Select this component for applications requiring high precision voltage referencing in space-constrained designs. The low minimum cathode current improves efficiency in battery-powered systems compared to higher current alternatives. Verify that the 36 V maximum input voltage aligns with the system's supply rails.

Part Context

This part belongs to the TL432 family of adjustable shunt regulators, which are widely used as voltage references in power management circuits. It serves as a cost-effective alternative to Zener diodes where precise voltage regulation is required. The SOT-89-3 package allows for compact PCB layouts in modern electronic devices.

Replacement Considerations

TL432AIPKG3 is a direct manufacturer-recommended replacement offering identical electrical specifications and pinout compatibility.