The recommended operating temperature range for the LM431CCM3X is -40°C to 125°C. However, it's essential to note that the device can operate up to 150°C, but with reduced performance and accuracy.
To ensure stability, it's crucial to follow the recommended layout and decoupling guidelines in the datasheet. Additionally, use a 0.1 μF to 1 μF ceramic capacitor between the Vref and ADJ pins to filter out noise and prevent oscillation.
The minimum voltage range for the LM431CCM3X is 2.5 V, and the maximum voltage range is 36 V. However, the device can operate up to 40 V, but with reduced performance and accuracy.
While the LM431CCM3X can be used as a voltage regulator, it's not recommended. The device is primarily designed as a voltage reference, and its output current capability is limited to 10 mA. For voltage regulation, it's better to use a dedicated voltage regulator IC.
The voltage reference output of the LM431CCM3X has an initial accuracy of ±1% and a temperature coefficient of ±20 ppm/°C. This means that the output voltage can vary by up to ±0.6% over the operating temperature range.
LM431CCM3X datasheet
by Texas Instruments
Findchips
