Here is the PCB drawing: LimeSDR_Mini_1v2_PCB_Drawings_r1.PDF
here is the schematic: LimeSDR_Mini_1v2_schematic_r1.PDF
But this version from the Wiki is a bit more readable:
| IC12 | IC | Switching regulator (1.8V) |
| IC13 | IC | Switching regulator (3.3V) |
| IC14 | IC | Linear regulator (2.5V) |
| IC15 | IC | Linear regulator (12.5V) |
| IC16 | IC | Linear regulator (1.4V) |