Texas Instruments TPS549D22, User Manual, Page: 10 / 48

8 List of Test Points, Jumpers, and Switch
Table 8-1 lists the test points and their descriptions.
Table 8-1. Test Point Functions
Item Type Name Description
TP5 T-H loop SW Power supply Switch node
TP7 T-H loop CH-A Measure loop stability
TP6 T-H loop CH-B Measure loop stability
TP2 T-H loop LocS+ Sense VOUT + locally across C5. Use for efficiency and ripple measurements
TP10 T-H loop LocS- Sense VOUT– locally across C5. Use for efficiency and ripple measurements
TP3 T-H loop RemS+ Remote sense +
TP11 T-H loop RemS- Remote sense –
TP4 T-H loop PVIN Sense VIN + across C10
TP13 T-H loop PGND Sense VIN – across C10
TP1 T-H loop VDD Supplies the internal circuitry
TP17 T-H loop FSEL Monitor the FSEL external resistor divider ratio during initial power up.
TP15 T-H loop VSEL Monitor the VSEL external resistor divider ratio during initial power up.
TP9 T-H loop BP LDO output
TP8 T-H loop PG Power good
TP16 T-H loop MODE Monitor the MODE external resistor divider ratio during initial power up.
TP12 T-H loop ILIM Program over-current limit.
TP14 T-H loop RESV_TRK Do not connect.
TP19 T-H loop PGND Common GND
TP18 T-H loop PGND Common GND
TP20 T-H loop PMB_CLK Clock input for the PMBus interface.
TP21 T-H loop PMB_DATA Data I/O for the PMBus interface.
TP22 T-H loop SMB_ALRT# Alert output for the PMBus interface.
JP4 2-pin jumper CNTL Shunts control pin to GND
List of Test Points, Jumpers, and Switch www.ti.com
10 TPS549D22 SWIFT™ Step-Down Converter Evaluation Module User's Guide SLUUBG4A – JULY 2016 – REVISED AUGUST 2021
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