I know this was discussed a while back about using 7135's in zener or LDO modded 6V setups, concluding it's ok up to 6V or so, but just came across this post from Richard in the H17F thread:
You could zener mod it, but you'll burn up the 7135 chips, especially the single channel 7135 chip, in a hurry. Not recommended. The duty cycle would have to be greatly reduced on the single 7135 chip, which would require a firmware change
https://budgetlightforum.com/t/-/36651/217
Not sure if duty cycle means PWM rate? So he's saying it's possible, but by reducing the duty cycle which I don't know what it means. I'm asking because I received the 30 mm LDO OSHPark TA boards, and am prep'ing one for use in a L6, and if his comment applies to this board as well, sounds like trouble...
The H17F is a triple channel board, but I see uses the 380 mA 7135's, not 350's that I'm using.