ZHCSH55B December 2017 – September 2018 TPS65218D0
UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.
In applications that do not require always-on supplies, both inputs and the output of the power-path can simply be grounded. All pins related to DCDC5 and DCDC6 are also tied to ground, and PGOOD_BU and IN_nCC are kept floating. With the backup supplies completely disabled, the FSEAL bit in the STATUS register is undefined and should be ignored.
Figure 6-2 DCDC5 and DCDC6 Pins NOTE
In applications that do not require always-on supplies, PGOOD_BU and IN_nCC can be kept floating. All other pins are tied to ground.