We are evaluating the ADP2442 ic. Our prototype is a basic dc dc converter, from 24V to 5V
This is the schematic (basically a copy&paste of the reference design):
If we connect the pin 6 (SYNC/MODE) to gnd (pulse skip mode), the circuit seems to work. We have 5V and we can supply current for a test load.
But if we use the fixed mode (pin 6 to vcc), the circuit works for a couple of seconds, and then, it shutdowns. We were looking for something strange, but at first, we dont see anything.
any idea or suggestion?
Thank you very much!!!