SLUSBX9I March 2014 – July 2019 TPS23861
The TPS23861 can be used on applications needing only 1 to 4 ports. On unused ports ground the SENx pin and leave the GATEx pin floating. DRAINx pins can be grounded or left open (leaving open may slightly reduce power consumption). One example of an unused PORT4 is shown in Figure 47. For detailed design and component selection information, see System Examples.
This schematic shows connections for an unused PORT4.