Other Parts Discussed in Thread: LM2842
We use LM2842 since few years without problem but on a new range of product the LM2842 systematically be destroy after few power-on :
We have 24V input, 5V output to power a Cortex M4 MPU + 4.3 inch LCD display (about 200/250mA under 5V).
The pre-production batch was working since few month without problem. Now we make a first production batch of 300 boards and LM2842 stop working one after one.
We add a soft start on pin4 and it seems to correct the problem.
I would like to understand why the LM2842 is destroy now ?
Thanks for your help,