The LTC3615/LTC3615-1 are dual 3A synchronous stepdown regulators using a current mode, constant-frequency architecture. The DC supply current is only...
LTC3615 on Analog.com
What is the difference between LTC3615EFE and LTC3615IFE ? I can not seen any difference in the data sheet.
Both have -40 .. +125°C temperature range, there is NO difference to be found in the data sheet...
Please refer to the attached link.
(+) FAQ: Temperature Grade - Documents - Power Management - EngineerZone (analog.com)
Thank you very much!
Please note that there is an error in the LTC3615 data sheet (Rev. B 6/13) : it states -40...+125°C for the 'E' grade! 0...+85°C would be correct for 'E', I reckon.