The sync buck regulator (DC to DC) is widely used for low voltage, high current applications.
The following are photos of a CPU core multi-phase sync buck regulator:
1

2

3

4

5

6

7

Photo with penny to show size comparison:

CPU LGA socket pins:
8

9
The following are photos of a CPU core multi-phase sync buck regulator:
1

2

3

4

5

6

7

Photo with penny to show size comparison:

CPU LGA socket pins:
8

9
