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the level of v+ is 6v , I want to convert it to -6v by tl7660, output current is 10mA. what is the minimum value of capacitance(c1 and c2) for tl7660.
Pan5313,
Less capacitance will lower efficiency and increase output resistance per the formulas and text in data sheet.
4.7uF can be used if full output capability is not required.