DrJones used them here: Seeking AMC7136 - for a single sided driver design
They are hard to find as AMC7136. To my knowledge they are sold as QX7136 which show up as being much more available. I think they are the same, but I’m not %100 sure. What I have troubles finding out is what size range the current setting resistor Rext has to be when using it without an external FET.