I am using the well-known I²C level shifter from that appnote from Philips.
The 3V side is supplied by an LP2950-3.0 regulator and is loaded only moderate (a few quite lazy 74's).
The problem I'm obserivng is that the 3V side is being pulled to 5V.
I loaded the 3V side with a resistor and calculated that the level shifter presents a resistance of only 2.7 kOhms. I consider this rather low and I wonder:
Is that normal behaviour or did I make some mistake?
Isn't this harmful for the devices on the 3V side? There are several ICs that according to the datasheet are explicitly not 5V tolerant, not to forget the regulator.