Hello,
The complexity of a current limiter (maybe combined with shut down / auto restart) depends on the allowed voltage drop, ratio between nominal current and current limit, etc. You may arrive at a point where it is attractive to design the voltage control loop also.
If you have a separate LDO regulator and have to add a series component for current limiting and measurement (for example current sense resistor and large BJT or mosfet), this will add to the overall voltage drop.
With the availability of cheap transistor pairs with reasonable matching ("BCM"-prefix in EU) and high gain low Vce-sat transistors, you may consider your own design.
What is your nominal current, input/output voltage and maximum drop out voltage?