Hello Experts,
This is my first time designing a SEPIC type switchmode power supply with
the LM3478MM from national as my controller.
My design is pretty much the standard application as shown in the datasheet.
The design is made to supply 24V out from a 15-32V input. Ouput current is
1A.
My problem is that my two inductors and the MOSFET gets insanely hot. Much
more hot that I had anticipated. So I wonder if there is somewhere I have
missed something vital.
I am using CDRH127 series...
LM3478 design gets insanely hot
This is my first time designing a SEPIC type switchmode power supply with
the LM3478MM from national as my controller.
My design is pretty much the standard application as shown in the datasheet.
The design is made to supply 24V out from a 15-32V input. Ouput current is
1A.
My problem is that my two inductors and the MOSFET gets insanely hot. Much
more hot that I had anticipated. So I wonder if there is somewhere I have
missed something vital.
I am using CDRH127 series...
LM3478 design gets insanely hot