Other Parts Discussed in Thread: TPS60111 , TPS2061 The datasheet for the TPS60111 regulated charge pump tells us that "ENABLE high may only be applied when VIN is inside the recommended operating range." Also, every diagram in the datasheet show ENABLE…
power quick search returns 39 options for charge pumps and dc/dc switching converters. More option if you want a controller w/ external FETs or a module. I would probably go with a converter or charge pump. So it will depend on your other care abouts…