I want to realize a breakout board based on the LTC3864 with only the low-power components.
The high power component (coil, mosfet, schottky, output capacitors, ecc.) would be external for testing.
But in the envox page, the mod told me that it could be a complete waste of time, because the slightest difference in the placement of the trace can make a huge difference.
There is no possibility to make a breakout board based on a buck IC without integrated switch?
Could be wast of time also if I realize the BB board also with the high power component and remote only the v-sense direct to the post regulator?
In the PC power supply, for example, I noticed that the DC-DC converters IC are mounted on a separated PCB.
I did a similar thing when I tested the new switchers for power pre-regulator for the DCP405 module from the
BB3 project. The complete pre-regulator is on its own PCB which goes to the main PCB where the remaining circuits are (i.e. bias pre-regulator, post-regulator, digital control, etc.). Switchers of interest were TPS54560 and LM5145.
Schematics and PCBs in Eagle are in attachment. Please note that due to limited space and just 2-layers both of them requires additional cooling for max. current (5 A).
Just following up with my own EEZ PSU H24005. It's still going strong without any failure. I use it all the time and it has not failed me once.\
Thanks for designing a great power supply.