http://www.linear.com/product/LTC3265
A voltage doubling charge pump and an inverting charge pump both followed by LDO regulators, nice options for using a single or two lithium ion batteries and get the voltage you need. I have been experimenting with this regulator. New and a little high in cost but it solves the battery problem.
A voltage doubling charge pump and an inverting charge pump both followed by LDO regulators, nice options for using a single or two lithium ion batteries and get the voltage you need. I have been experimenting with this regulator. New and a little high in cost but it solves the battery problem.
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