Question from my customer:
I am using the TLV70718 and it works fine only I plug in a LTE module and then the output goes from 1.8 to 2.7 volts. There’s an interface signal that is being driven with a buffer that’s sourced by the 1.8V rail, but the module has a 10K (or maybe 5K) pullup to 3.5V which seems to be pulling the regulator out of regulation (its input is 3.3V). I’m surprised that such a high resistance (through a buffer) is having this effect and I want to understand why.
Thanks,
Nick