Developing a customizable driver

[icpart]

[quote=Lexel]

@sidehack

I have not posted it yet but I am about as far as with the 17mm buck with a 17mm Buck/Boost that can deliver in buck mode up to 4A and boost 2.5A

Very interesting new driver. Is that buck/boost driver is similar to lume1 or is total new design compatible with existing Bistro HD and Anduril firmwares?
For mosfet switch seems Convoy S2+ tailcap have enough room for that from what i see from that thread:

GFS16 - Battery Indicator Tailcap Light & 1mR FET Tailswitch! (Rev B)

Hello BLF, TL;DR: I built a tailswitch system comprised of two PCBs, called the GFS16 System. First is a 18mm Taillight board which provides the regular taillight, and also features a battery sensing system to change the LEDs colours when the battery voltage is low (Rev B features 5uA standby current!). Second is a 16mm Tailspring/FET board, which allows replacement of the switch for a super low resistance FET, allow for the best performance in high current flashlights. All PCBs are up on OSHP…