您好，
我需要得到-17V，有两个可用的输入+5V和+11V，电流为300mA左右。
我看了TI的反向DCDC输出电压不够，
我看您给别人的解答说buck电路可以输出负电压，但是负电压的绝对值可以比输入电压大吗？比如输入+11V，输出-17V？
还是需要用boost电路反转？要是用boost反转的话，怎么实现输出负电压？谢谢！
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