Other Parts Discussed in Thread: TLV431A, , TLV431
I am attempted to use the TLV431B-Q1 as a 3.3V shunt regulator in a design. The expected load will vary in capacitance (worst case 10uF) so I have a question regarding Figure 18 in the datasheet. Particularly, do the same stability boundary conditions apply? The figure is labelled for the TLV431A only. Please let me know if these conditions also apply to the TLV431B-Q1.
I've attached a picture of my circuit here. For some reason, I see a stable output when I place a 0.1uF cap from the TLV431's anode to cathode. This seemingly violates the stability boundary conditions of the circuit. (it's stable even when the 10uF cap is removed too) Please let me know about both the datasheet and this apparent contradiction.