I'm building a circuit powered by a small Li-Ion battery. The battery will be connected to a 3.3V LDO, which then powers the entire circuit.
Li-Ion batteries are damaged if they are allowed to drain below about 3V. There are chips to do this LVC cutoff.
But I figure the LDO will already have the pass transistor and voltage reference, so it seems wasteful to add another part. This seems to be the kind of thing that could be easily integrated.
Does anyone make an LDO with low-voltage cutoff? Parametric searches and Google seem to be failing me.