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请推荐负电压产生芯片

Other Parts Discussed in Thread: TPS63700, LMR70503, LM2990, TPS7A33, LM27761, TPS62150, TPS62170, TPS62130, TPS65135, TPS65130

各位工程师你们好,目前想使用一节锂电池给运放供电,但是苦于没有负电压,之前用过电荷泵,但是效果不好,纹波太大,因为是处理小信号所以噪声不能接受,TI 有没有类似芯片,可以输入正压得到负压的呢?如果能同时抬压那更好了,谢谢!