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Dear sirs,
in in the bringup phase of a design, where we use the LM3478 to provide a stabilized 24V supply.
When we started analyzing the behaviour of the LM3478 we where shocked about the start-up current
which goes down to some mA after that phase.
The inrush-current is nearly 4A at 24V which makes it a problem to use cheap external power-supplies.
Now my question: Is it possible to add an external soft-start circuit as done in the Application Report SNVA742 for the LM2588
(Transistor from the second inductor to the compensation input).
As far as I have seen it, there is also no possibility in WEBENCH Designer to define and simulate such a circuitry - is this true?
Best regards,
Bernhard