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TI工程师：
我现在使用ICL7660 将+3V转换为-3V，该芯片功耗为200uA，现在是给运放±3V供电 ，请问TI有没有类似的低功耗负压转化芯片，我的系统要求超低功耗，如果能功耗更低最好。谢谢。
LMC7660
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