Use the following instructions to capture the start-up profile of LM74704-Q1:

1. Set the input supply voltage VIN to 12 V and current limit of 5 A.
2. The default EVM configuration has EN tied to ANODE via R2. So, the device is enabled when input voltage goes above V_{(EN_IH)} threshold. This configuration allows us to capture startup with input voltage behavior of the IC.
   1. For startup with EN test, de-populate R2 and connect external control signal voltage to TP4 (EN).
3. Verify the jumper J5 is populated which connects the on board generated pull-up voltage to FET_GOOD signal.
4. Turn ON the power supply.
5. Observe the start-up profile of VIN, VOUT, GATE and input current.

Figure 3-2 shows the startup wavefom of LM74704-Q1 while input voltage is ramped up from 0 V to 12 V.

Use the following instructions to capture the start-up profile of LM74703-Q1:

1. Replace U1 (default LM74704-Q1) on board with LM74703-Q1.
2. Set the input supply voltage, VIN to 12 V and current limit of 5 A.
3. The default EVM configuration has EN tied to ANODE via R2. So, the device is enabled when input voltage V_{(EN_IH)} threshold.
4. Verify the jumper J5 is de-populated as the LM74703-Q1 has push-pull output of FET_GOOD and does not require an external pull-up voltage.
5. Turn ON the power supply.
6. Observe the start-up profile of VIN, VOUT, GATE and FET_GOOD.

Figure 3-3 shows the startup wavefom of LM74703-Q1 while input voltage is ramped up from 0 V to 12 V.