4.5 Transient Response to Positive/Negative Load Step (27 A to 67 A to 27 A)

The TPS7H4001QEVM-CVAL hardware contains a sub-circuit which is useful for measuring the transient response to a very high current step. See Section 8 for full explanation of how the test is conducted and circuit is used.

Figure 7 shows the response to an estimated 40A load step to be approximately 60mV.

Figure 7. Vout Transient Response to Current Step from 27A to 67A

• Change the trigger on CH1 to falling edge to capture the transient response of VOUT to negative current step from 67 A to 27 A as shown in Figure 8.

Figure 8. Vout Transient Response to Current Step from 67A to 27A