LM2678 - Pin assignment discrepancy

Ryuji,

Which package are you referring to? The WEBENCH® design appears to be using the TO-263 or TO-220 package without the NC pin. There are no pin numbers in the WEBENCH® schematic and the circuit looks a lot like the datasheet Typical application schematic.

Ryuji,

I have talked to the device owner in WEBENCH® and this device is scheduled to be updated later this year. At that time, the device pin numbers will be updated to more closely match the pin numbers published in the datasheet. This device is an older device that used a different methodology when it was added to WEBENCH® and the pin numbers were not as important. Please note that the device and its designs are correct and verified even though the pin numbering does not match the datasheet pin numbering. If the pin numbers are needed for routing or board layout, I would HIGHLY recommend that you use the CAD export function for the device. I would not depend on the pin numbers and locations from the WEBENCH® schematic.