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TPS7A57: 5701

Part Number: TPS7A57


1、VIN=5.5V,REF=100k,想输出Vout=5V,Vbias悬空,CP_EN连接Vin,利用TINA仿真报错,用的是无加密仿真模型。将Vbias和CP_EN都连接到VIN后,输出5V正常。手册上说可以Vbias悬空,不知道哪里出了问题?

2、如上所述,输出5V,CP_EN连接到地,那Vbias最小电压是多少?

谢谢!