TPS53647_15 Datasheet, PDF (108/122 Pages) Texas Instruments – TPS53647 4-Phase, D-CAP+, Step-Down, Buck Controller with NVM and PMBus Interface for ASIC Power and High-Current Point-of-Load

TPS53647
SLUSC39 – JUNE 2015
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Layout Guidelines (continued)
10.1.2.7 Grounding Recommendations
The TPS53647 device has a GND pin, and a thermal pad. The normal procedure for connecting these follows:
• The thermal pad does not have an electrical connection to the TPS53647 device. However, it is suggested to
be connected to GND pin of the TPS53647 device (analog ground) to give good ground shielding as shown in
Figure 121
• All the analog components should connect to this analog ground island
• Use a single point connection from analog ground to the power ground.
GND Pin
Analog Ground Plane
Figure 121. Layout Example for TPS53647 Grounding
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