L6728A

20 A demonstration board

20/32

11

20 A demonstration board

L6728A 20 A demonstration board realizes, in a two-layer PCB, a step-down DC/DC

converter and shows the operation of the device in a general-purpose high-current

application. Different output voltage rails have been considered: 8 V, 5 V, 3.3 V, 2.5 V, 1.25 V

and 0.8 V. The input voltage can range from a bottom value that depends on the chosen rail

up to 15 V buses (absolute maximum). The application can deliver an output current up to

Figure 9.

20 A demonstration board (left) and components placement (right)

Figure 10.

20 A demonstration board’s top (left) and bottom (right) layers