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双极性电源芯片设计选型

一款双极性电源项目(主要用于液晶屏驱动),仕样如下:
1.输入电压:4.3V~11.7V(此为USB5V和AC适配器12V,经过二选一自动切换电路后的电压);
2.输出电压①:±3.3V/1A,输出电压②:±25V/1A;
  *输出电压①和②可以分别各自输出,并非必须同一芯片两路同时输出
3.输出电压供DAC、运算放大器等模拟器件使用,需高精度、高PSRR、低纹波;
想选择一款符合该需求的电源芯片,望给与协助,谢谢!