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Any issues making a mixed SOB sandwich?

Justin Case

Flashlight Enthusiast
Joined
Mar 19, 2008
Messages
3,797
I have an SOB1185 and an SOB1227. Any issues if I connect these in parallel to make an "SOB2400" two-board sandwich, vs the usual approach of using two identical SOBs? I want to drive 3 parallel Cree XP-Es. I recognize that this SOB sandwich would deliver higher than the max 700mA drive current in the XP-E datasheet.

In the past, driving a Seoul P4 and a 2S2P Cree MC-E, the voltage overhead for regulation has seemed to be around a volt or so. Is there anything that can be done to get it lower so that I can drive this setup with 1xLi-ion? If not, no big deal.
 
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