SLUUBL7A February 2017 – February 2022 TPS543C20
Table 7-1 lists the test point functions.
| Item | Type | Name | Description |
|---|---|---|---|
| TP10 | T-H loop | SW1 | Power supply switch node (CONTROLLER) |
| TP21 | T-H loop | SW2 | Power supply switch node (TARGET) |
| TP4 | T-H loop | Bode-IN | Measure loop stability (CONTROLLER) |
| TP28 | T-H loop | Bode-IN | Measure loop stability (TARGET) |
| TP5 | T-H loop | Bode-OUT | Measure loop stability (CONTROLLER) |
| TP29 | T-H loop | Bode-OUT | Measure loop stability (TARGET) |
| TP14 | T-H loop | VOUT | Sense VOUT + locally across C9. Use for efficiency and ripple measurements |
| TP3 | T-H loop | GND | Sense VOUT – locally across C9. Use for efficiency and ripple measurements |
| TP16 | T-H loop | VIN | Sense VIN + across C14 (CONTROLLER) |
| TP18 | T-H loop | VIN | Sense VIN + across C26 (TARGET) |
| TP35 | T-H loop | GND | Sense VIN – across C14 (CONTROLLER) |
| TP33 | T-H loop | GND | Sense VIN – across C26 (TARGET) |
| TP9 | T-H loop | VDD | Supplies the internal circuitry (CONTROLLER) |
| TP24 | T-H loop | VDD | Supplies the internal circuitry (TARGET) |
| TP1 | T-H loop | BP1-5V | LDO output (CONTROLLER) |
| TP26 | T-H loop | BP1-5V | LDO output (TARGET) |
| TP6 | T-H loop | PGD | Power good (CONTROLLER) |
| TP31 | T-H loop | PGD | Power good (TARGET) |
| TP2, TP3, TP11, TP22, TP30, TP32-TP35 | T-H loop | PGND | Common GND |
| J2 | 2-pin jumper | EN | Enable or disable TPS543C20 IC (CONTROLLER) |
| J6 | 2-pin jumper | EN | Enable or disable TPS543C20 IC (TARGET) |
| TP37 | T-H loop | SYNC2 | Synchronize with external switching frequency (CONTROLLER) |
| TP36 | T-H loop | SYNC1 | Synchronize with external switching frequency (TARGET) |