I'm designing a power supply block and need to measure the current flowing trough a LDO. It is clear that the current in front of the LDO and after the LDO are the same (apart from some tiny bit used by the LDO). But does it matter if I mount the shunt in front of the LDO or after the LDO? Are there any differences in noise or voltage precision?
[![Shunt after LDO](https://i.stack.imgur.com/BWiSQ.png)](https://i.stack.imgur.com/BWiSQ.png)

[![Shunt in front of LDO](https://i.stack.imgur.com/QVofp.png)](https://i.stack.imgur.com/QVofp.png)