SLVU777A September 2012 – November 2021 TPS54020
2.5 Load Transient
Figure 2-4 shows the EVM response to load transients. The current step is from 0 A to 4.7 A with an input voltage of 5 V. The transient was applied by switching in a real resistor load. The current step slew rate is approximately 50 A/μs. Total peak-to-peak voltage variation is as shown, including ripple and noise on the output.
| Parameter | Description |
|---|---|
| Bottom Trace | Output current switching between 2.5 A and 7.5 A, 2.5 A/div |
| Top trace | Output voltage, AC coupled, at 100 mV/div |
| Time Scale | 200 µs/div |
| Conditions | Input voltage = 12 V, temperature = 25°C |
Figure 2-4 TPS54020EVM-082 Transient Response