Deep Inside ASICMiner Tube
Part Number TPS53335 High-Efficiency 20-A Synchronous Buck Converter From Texas Instruments.
They can deliver up to 20A in a very tiny package. Input voltage range is 4.5V-25V on those little beast.
Need 8x DC/DC to supply 24 BE-200 ASIC to have a PCB board loaded. That 20A * 8 = 160Amps Abs Max or a lot.
Good DC supply and constant current is the key for a design to go well.
EMI and Ground loop can be a problem with high current circuits, high filtering is required.
Most of the components is capacitors of all sizes and big inductors. Only job : to filter DC on the board.