The APIs for setting the power of the OpAmp do not distinguish between PSoC3 and PSoC5 LP And there is no hint that it should be differently handled in one of the targets. Since the underlying hardware is quite the same, I think that Cypress only has forgotten to name the quiescent current for different power modes. If you want to be darn sure, file a "MyCase": at top of this page go to "Support & Community -> Technical support - Create a MyCase" and specify your request.
From a PSOC CY8C5868 datasheet -
The configurator shows 4 settings as well, Creator .1, SP2. Only thing I noticed is that in
PSOC 3 datasheet the lowest power level is lower than all the others, unlike the PSOC 5LP
datasheet (not component datasheet, the full device datasheet).
Maybe ask about this when you file CASE.
Thank you very much for your answers
Glad to have been of assistance.