Invention Grant
- Patent Title: On-package high-bandwidth resonant switched capacitor voltage regulator
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Application No.: US16440901Application Date: 2019-06-13
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Publication No.: US11271475B2Publication Date: 2022-03-08
- Inventor: Rinkle Jain , Jonathan Douglas , Shivadarshan Rajeurs
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Schwabe, Williamson & Wyatt, P.C.
- Main IPC: G11C5/14
- IPC: G11C5/14 ; H02M3/07 ; G06F1/26 ; H03K3/037

Abstract:
Disclosed is an N:1 (where N is an integer such as 3 or higher) resonant star topology converter to generate an input supply (e.g., 1.8V) for a processor (e.g., a system-on-chip (SOC)) from a higher power supply source (e.g., 12.6V) such as a battery or other source. The resonant star topology based regulator can be realized by a combination of on-die and on-package components as opposed to voltage regulators on motherboard with discrete inductor and capacitors. In one example, capacitors of the N:1 resonant star topology are implemented as multilayer ceramic capacitors (MLCC). The architecture of the N:1 resonant star topology based regulator results in high bandwidth. For example, compared to traditional step-down voltage regulators, the N:1 resonant star topology based regulator exhibits ten times higher bandwidth.
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