SWITCHED POWER STAGE WITH INTEGRATED PASSIVE COMPONENTS

摘要

A scalable switching regulator architecture has an integrated inductor. In some embodiments an area and current drive capability of switches of the switching regulator is matched with an inductor built within an area above the switches. In some embodiments the combined switches and inductor are constructed as a unit cell and can be combined to form larger elements as required for higher current drive capability and multiphase operation.

主权项

1. An integrated chip package comprising:
a flip-chip type integrated circuit (IC) chip including a system-on-chip (SoC) and a switching voltage regulator, the switching voltage regulator including at least a first switch and a second switch coupled in series between a higher voltage level connection and a lower voltage level connection; a multi-layer substrate having a cavity with at least one inductor in the cavity, the at least one inductor having a plurality of upper layers of traces interspersed by ferrite material, the inductor including a first end and a second end; and a plurality of micro-bumps connecting the IC chip to the substrate including a micro-bump connecting a node between the first switch and the second switch to the first end of the inductor.