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US 12,015,020 B2Granted
Semiconductor device and power management IC
AssigneeRenesas Electronics Corporation
InventorTakafumi Betsui
Life of this patent
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Abstract
Semiconductor device has a regulator circuit having an even number of switching regulators that generate output power from an input power supply and a power management IC that controls the output potential generated by the switching regulator. semiconductor device is characterized in that a group of half of the even number of switching regulators is arranged on a first surface of semiconductor device system board, and a group of switching regulators, which is the remaining half, is arranged on a second surface that is in front-back relation with the first surface. This semiconductor device reduces semiconductor device board-area (pattern-resource).
Claims6
A semiconductor device comprising:
- a regulator circuit including:
- an even number of switching regulators for generating an output power supply from an input power supply;
- and
- a power management IC for controlling output potentials generated by the even number of switching regulators,
- wherein a first switching regulator group including a half of the even number of switching regulators is disposed on a first surface of a system board of the semiconductor device,
- wherein a second switching regulator group including a remaining half of the even number of switching regulators is disposed on a second surface of the system board of the semiconductor device, and
- wherein the first surface and the second surface of the semiconductor device are arranged to have a front-back relationship,
- wherein the power management IC the first switching regulator group and the second switching regulator group such that a first current value generated by the first switching regulator group and a second current value generated by the second switching regulator group are different from each other,
- wherein radiators are arranged on a surface of one of the first switching regulator group or the second switching regulator having a higher current value than another.
6 more elements
A semiconductor device comprising:
- System-On-Chip (SoC);
- and
- a regulator circuit having:
- an even number of switching regulators for generating an output power supply from an input power supply;
- and a power management IC for controlling output potentials generated by the even number of switching regulators, wherein a first switching regulator group including a half of the even number of switching regulators is disposed on a first surface of a system board of the semiconductor device, wherein a second switching regulator group including a remaining half of the even number of switching regulators is disposed on a second surface of the system board of the semiconductor device, wherein the first surface and the second surface are arranged to have a front-back relationship with each other, and wherein a first power supply pattern provided in a layer close to the first surface, a second power supply pattern provided in a layer close to the second surface, and the first switching regulator group are electrically connected to power supply terminals of the SoC via the first power supply pattern,
- wherein the power management IC the first switching regulator group and the second switching regulator group such that a first current value generated by the first switching regulator group and a second current value generated by the second switching regulator group are different from each other,
- wherein radiators are arranged on a surface of one of the first switching regulator group or the second switching regulator having a higher current value than another.
4 more elements
A power management IC for controlling an even number of switching regulators,
- wherein a first switching regulator group including a half of the even number of switching regulators is disposed on a first surface of system board of a semiconductor device,
- wherein a second switching regulator group including a remaining half, is disposed on a second surface of the system board, wherein the first surface and the second surface are arranged to have a front-back relationship with each other, and wherein a phase difference between a phase of an output power supply generated by the first switching regulator group and a phase of an output power supply generated by the second switching regulator group have a predetermined value,
- wherein the power management IC the first switching regulator group and the second switching regulator group such that a first current value generated by the first switching regulator group and a second current value generated by the second switching regulator group are different from each other,
- wherein radiators are arranged on a surface of one of the first switching regulator group or the second switching regulator having a higher current value than another.
1 more element
Dependencies are inferred from the claim text.