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现在想用运放直接驱动一些小型继电器。24v电源，输出电压12v，电流100mA。请问有没有合适的片子推荐。最好是4路的集成运放
输入电压5v,dc-dc外围电路比较多，这个要求板子体积小。因为输出电流比较小，所以考虑运放来做
