FDMS3668S Fairchild Semiconductor, FDMS3668S Datasheet - Page 12

• Manufacturer Part Number: FDMS3668S
• Description: This device includes two specialized N-Channel MOSFETs in a dual PQFN package
• Manufacturer: Fairchild Semiconductor

©2011 Fairchild Semiconductor Corporation
FDMS3668S Rev.C1
2. Recommended PCB Layout Guidelines
As a PCB designer, it is necessary to address critical issues in layout to minimize losses and optimize the performance of the power
train. Power Stage is a high power density solution and all high current flow paths, such as VIN (D1), PHASE (S1/D2) and GND (S2),
should be short and wide for better and stable current flow, heat radiation and system performance. A recommended layout proce-
dure is discussed below to maximize the electrical and thermal performance of the part.
Figure 30. Shows the Power Stage in a buck converter topology
Figure 31. Recommended PCB Layout
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