Imagine the following situation: you have a device that requires both positive and negative 12V supply, but only a single Li-Po battery at your disposal. How would you solve this problem? Don't worry, we have a great solution for you - Boost-INV 2 click board.
Boost-INV 2 click is a very useful DC/DC voltage converter device, as can output both positive and negative voltage, boosted up to 15V and inverted to -15V, from a single fixed voltage input. The input voltage can vary between 2.7V to 5.5V, making the Boost-INV 2 click an ideal solution for powering devices with complex, split-rail power supply demands, using only a common battery.
The main converter IC is the TPS65131, a positive and negative output DC/DC Converter, from Texas Instruments. Two D/A converters are connected into the positive and negative voltage feedback loop of the TPS65131. The positive and the negative loops are fed into the internal error amplifiers, which compare the feedback voltage with the internal references.
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Yours sincerely,
MikroElektronika