Power source control circuit module
AssigneeMurata Manufacturing Co., Ltd.
InventorsMasato Yoshida, Tomohiro Nagai, Hiroshi Matsubara
Life of this patent
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Abstract
In a power source control circuit module, switching regulator devices and a linear regulator device are mounted on a surface of a laminated body so as to be spaced from each other. In an interface between dielectric layers of the laminated body, first to fifth internal ground electrodes separated by an electrode non-formation portion are provided. The first, second, fourth, and fifth internal ground electrode are connected to the respective switching regulator devices. The third internal ground electrode is connected to the linear regulator device. The first to fifth internal ground electrodes are connected to respective different external ground terminals.
Claims6
A power source control circuit module comprising:
- a laminated body including a plurality of dielectric layers laminated on each other;
- a plurality of regulator devices mounted on a surface of the laminated body and including a switching regulator device;
- a first internal ground electrode connected to the plurality of regulator devices and arranged along substantially a whole surface of one of the plurality of dielectric layers within the laminated body;
- a first external ground connection terminal connected to the first internal ground electrode and provided on a back surface of the laminated body;
- a circuit element mounted on the back surface of the laminated body;
- a second internal ground electrode arranged along substantially a whole surface of one of the plurality of dielectric layers that is different from the first internal ground electrode;
- and
- a second external ground connection terminal connected to the second internal ground electrode and provided on the back surface of the laminated body;
- wherein
- the first internal ground electrode is electrically divided with respect to each of the plurality of regulator devices;
- individual electrodes of the divided first internal ground electrode are connected to the respective first external ground connection terminals;
- and
- the circuit element is connected to the second internal ground electrode.
Dependencies are inferred from the claim text.