The TC1044SCPA can take up to 12v. The MAX1044SCPA is rated at 10v, but can usually tolerate up to 12v from what I've read. The 9.1v zener will prevent any over-voltage in either situation. You can run the Boneyard at up to 12v, but the best bet is to use the TC charge pump then (and obviously use a 12v Zener instead of 9.1v).


