Below figures show TPS51396A response to load transient at 12-V input and 1.0-V output. In Figure 7-8, the current step is from 0.8 A to 7.2 A and the current step slew rate is 2.5 A/µs. In Figure 7-9, the current load is from 2 A to 6 A.

Figure 7-8 Load Transient from 0.8 A to 7.2 A

Figure 7-9 Load Transient from 2 A to 6 A