TI's LM5155 chip is used in a certain project. We expect the output voltage to be 11V, with a load of 10A and a duration of 100ms.In the actual test, it was found that the output voltage would drop to 8.64V when the output voltage was about 6.5A. Please help to review the attached schematic diagram for how to improve Boost's load capacity. What we expect is that when the output current reaches 10A or higher, the output voltage can be dropped within 100ms but the minimum voltage will not fall below 9.5V.
We suspect that it may be caused by the following reasons:
1) The output cannot be stabilized due to inductance saturation
2) Output loop is unstable due to compensation network
3) the diode we have chosen before may not pass 5A. After replacing the diode with a diode that can carry a current of 30A, there is only a small improvement.
