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现准备用tps65133,做一个输出正负5V，给运放供电。请问下这个IC噪声电压是多少mV，后级还需要加LDO，还是用两级LC滤波就可以了？产品目前定位是中高端蓝牙耳机
亲；确切的说，IC噪音来自你的PCB布局。推荐用LC网络滤除。
