Hello,
I have a LP2989AILD-3.3 on a board (WSON package), and the component output fall to 1V when the ambient temperature up to 70°C.
The output can stay to 1V for hours with a temperature of 25°C and return to 3.3V.
The input voltage is 5V, and there is 10uF ceramic capacitors at the output and input. (10nF bypass capacitor)
The output current is 25mA, and the junction temperature of the component must be "ambient + 1.5°C".
We product severals boards but only one have the default.
Have you already see this type of default ?
Best regards,