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ADP1046A 100Watt
Evaluation board
Figure 41 – Digital compensation for Light Load mode (DCM)
Figure 43 – Loop gain for DCM. Injected noise of 100mVpp.
Crossover frequency at 567Hz
Phase margin of 50 degrees
B.
Transient Response for load step:
A dynamic load from 0-8A (slew rate 1A/µs) at a frequency of 20-25Hz can be set up to conduct this test. The output
voltage must be measured at the connectors J4 and J5 with very small loop area between the positive and negative
of the probes to minimize noise.
Figure 42 - Digital compensation for normal or heavy load(CCM)
Figure 44 – Digital compensation for CCM. Injected noise of 500mVpp.
Rev. 1.3 | Page 28 of 55
PRD1386
Crossover frequency at 7.24KHz
Phase margin of 51 degrees
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