Part Number: LM2678
Dear Sir,
My customer is now using LM2678S-ADJ/NOPB.
I have some problem.
When Input voltage is 12V. it is OK.
but when Input voltage is 28V, LM2678S-ADJ is burned.
Could you tell me Why LM2678S-ADJ is burned.
Could you advise me to solve this issue?
If you need more information please let me know that.
Specification are below.
Input Voltage rage : 9V ~ 36V
Output voltage : 9.33V
Output current : 2.5A
please refer to the attached schematic.