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ApplicationsConsumer ElectronicsEnergy and Power SystemsRenewable EnergyAutomotive
TL431CPK Information
TL431CPK by Texas Instruments is a Voltage Reference.
Voltage References are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
US Tariff Estimator: TL431CPK by Texas Instruments
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
This table gives cross-reference parts and alternative options found for TL431CPK. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of TL431CPK, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
The TL431CPK can operate from -40°C to 125°C, making it suitable for a wide range of applications.
To ensure stability, it's essential to decouple the TL431CPK with a 10nF to 100nF capacitor between the REF and ADJ pins, and to use a low-ESR capacitor for the output capacitor.
The TL431CPK requires a minimum output current of 1mA to maintain regulation. If the output current is less than 1mA, the output voltage may not be regulated.
Yes, the TL431CPK can be used as a voltage regulator. It can be configured as a series regulator by adding an external NPN transistor and resistors to set the output voltage.
The output voltage of the TL431CPK can be adjusted by connecting a resistor divider network between the REF and ADJ pins. The output voltage is determined by the ratio of the resistors and the internal reference voltage.
