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TPS54160芯片做正负电压输出设计

Other Parts Discussed in Thread: TPS54160

用TPS54160芯片设计+15V、-15V同时输出的电源设计,输入电压24V左右。TPS54160芯片的输出电流最大可达到1.5A。我的问题是,双电压输出,但只在单边接负载时,开关电源稳压性特别差,对于这种双电源输出的电路,是不是只能同时在两端接负载才不会影响电源的稳压性?