The 3.5 to 5.5 volt 110 chip from Murata Power Solutions.
There is a lot of confusing and misleading information about mods that are running this chip out there, so I figured I would try to clear the air on this one for you and tell you what I know based on using and researching the mod. I will try to dispel some of the false information, and also clear the air on some of the "protection" features of this chip. This information is based largely on daily use, and in part on me pushing the device to find out what I needed to know to pass the information on to you. It is important to point out that no wicks were burnt during the gathering and dissemination of this information. Fair enough? Good. Let's proceed.