Advantech SOM-Express Design Guide
Chapter 6 Power Delivery Guidelines 95
6.2 Design Guidelines
6.2.1 ATX Power Delivery Block Diagram
An ATX power source will provide 12 V , -12 V , 5 V , -5 V , 3.3 V , 5 VSBY power , if
other voltage is required (3.3 VSBY , LAN 2.5…. ) on the carrier board, an additional
switching regulator or LDO will be necessary.
Figure 6-1 ATX Power Delivery Block Diagram
