SLVU336A November 2009 – October 2021 TPS54226
The TPS54226EVM-539 is provided with input/output connectors and test points as shown in Table 2-1. A power supply capable of supplying 2 A must be connected to J1 through a pair of 20 AWG wires. The load must be connected to J2 through a pair of 20 AWG wires. The maximum load current capability is 2 A. Wire lengths must be minimized to reduce losses in the wires. Test point TP1 provides a place to monitor the VIN input voltages with TP2 providing a convenient ground reference. TP8 is used to monitor the output voltage with TP9 as the ground reference.
| REFERENCE DESIGNATOR | FUNCTION |
|---|---|
| J1 | VIN (see Table 1-1 for VIN range) |
| J2 | VOUT, 1.05 V at 2 A maximum |
| JP1 | EN control. Connect EN to OFF to disable, connect EN to ON to enable. |
| TP1 | VIN test point at VIN connector |
| TP2 | GND test point at VIN |
| TP3 | EN test point |
| TP4 | VCC test point |
| TP5 | Analog ground test point |
| TP6 | Switch node test point |
| TP7 | Power good test point |
| TP8 | Output voltage test point |
| TP9 | Ground test point at output connector |