like I said, it doesn't exist.(if you want to stick to 9mm and TDA, unless the height and length of the XD-E is satisfactory, which it isn't for the type of niche I wanted to fill).
you have to give up one or the other(9mm or TDA) or make a compromise with something that was not designed from the outset with thinness throughout.(PPS).
your choices are.
a) choose something that is based on existing (duty or "normal") guns but made smaller in height and length, like the Rami and others. the P239 is basically it's own gun but I feel it qualifies in this category. if you look from on top of the slide on a Rami next to something like the PPS, the Rami is humongous. PX4 etc., etc.. (some have options for thinner controls but they still are what they are).
b) find something that was designed for being small and thin from the outset but before the "new" definition of thin. the S&W CS and 3913(there're several models or similar) sit here and are in fact a great option but make sure that it fits your definition of thin and light because a PPS they're not.
(there was a craze not too long ago with people buying up used S&W models and some of the parts on these are drying up) (I've had enough of out of production guns and don't want more but maybe your different).
c) give up on 9mm or TDA and the sun begins to shine through. (I will not give up on TDA and new technology has at least help me with the 9mm-as-a-minimum issue). (new research is in order for anyone looking at .380 ACP).
Taurus has/had some models that fit somewhere in these categories but mostly they seem not to be TDA but instead SA with second strike capabilities.
good luck whatever you do.