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TPS65912: 上电后禁止输出

Part Number: TPS65912

在使用tps659122 DCDC1 DCDC3 DCDC4做输出时,程序初始CONFIG1 CONFIG2 PWRHOLD  nPWRON  SLEEP EN1 EN3 EN4 等GPIO后,芯片会立即输出1.2V 左右的default电压,直到程序i2c使能 ENx 引脚。请问有哪些方案可以消除此阶段的输出?

期望现象: 上电后,程序初始化 GPIO,并禁止ENx信号, 芯片不输出电压。