I am using a TPS70930 to trip a switch when a charging capacitor reaches a certain voltage. From the datasheet I figured that the EN voltage was at 0.9V at a minimum but in practice I found it to be around 0.5V, is this correct?
My test circuit is applying 5V to the IN pin with a power supply and varying the voltage on the EN pin with another power supplies. There is a 1uF capacitor from IN to GND and a 2.2uF capacitor from OUT to GND. Then I'm probing the EN pin and OUT pin with an oscilloscope (typical 1Mohm probes) to determine the level. I find that the LDO turns on with EN=0.51V minimum.