TL431IPKG3

Overview

The TL431IPKG3 is an adjustable shunt voltage reference IC manufactured by Texas Instruments. It operates within a cathode-to-anode voltage range of 2.495V to 36V and supports a maximum output current of 100mA. The device features a ±1% initial accuracy tolerance at 25°C and utilizes a SOT-89-3 surface-mount package. It is designed for applications requiring precise voltage regulation and low output impedance, functioning as a programmable parallel regulator.

Feature Summary

• Provides adjustable voltage reference functionality with high precision
• Features low output impedance for stable regulation performance
• Offers active output circuitry with defined turn-on characteristics

Applications

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

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment upon receipt. Ensure storage conditions comply with moisture sensitivity level requirements to prevent soldering defects during assembly.

Selection Notes

Select this component when a surface-mount adjustable shunt regulator with ±1% accuracy is required. Consider the SOT-89-3 footprint constraints and thermal dissipation capabilities. Evaluate against standard TL431 variants if through-hole mounting or different temperature ranges are necessary for the specific application environment.

Part Context

This part belongs to the TL431 family of three-terminal adjustable precision shunt regulators from Texas Instruments. These devices serve as versatile alternatives to Zener diodes in various power management applications. The IPKG3 suffix specifically denotes the SOT-89-3 surface-mount package configuration.

Replacement Considerations

• TL431AIPK