To test the transient performance of
the TPS53688, the following equipment is needed to test both phase A and phase B:
Power supply capable of high
current to test the full capability of the 180 A on phase A of the TPS53688
and the 60 A on phase B
Electronic load set the
current levels of the transient
Function generator to provide
the switching waveform to the onboard load transient circuit
Oscilloscope to measure the
load step and probe the voltage across the output capacitor to measure the
transient performance. Voltage measurements across the output capacitor can
be take directly from J11 (for phase A) and J12 (for phase B).