Currently we are using the following power supply scheme:
[![block diagram of power supply system](https://i.stack.imgur.com/b2UA2.png)](https://i.stack.imgur.com/b2UA2.png)
This solution effectively separates the analog sub-part of the PCB from the noise of the digital sub-part.

Now we are going to use the following scheme:
[![block diagram of power supply with ferrite beads instead of LDOs](https://i.stack.imgur.com/wkhvz.png)](https://i.stack.imgur.com/wkhvz.png)

The main benefit is decreasing the BOM cost. But would it separate the digital and analog sub-parts of the PCB?

LDOs are low noise parts (LP2980AIM5-3.3). The digital load - 20mA. The analog load - 10mA