Other Parts Discussed in Thread: TPSM8287A06
从手册来看，只要EN=0，内部所有电路都Reset了，I2C接口不能被读写。
8.4.1 Enable and Disable (EN)
The device is enabled by setting the EN pin to a logic High. In shutdown mode (EN = Low), the internal power
switches as well as the entire control circuitry are turned off, and all the registers are reset, except for the Enable
Output Discharge bit. Do not leave the EN pin floating.
In shutdown mode (EN = Low), all registers cannot be read and written by the I2C interface.
我们的需求是，Vin到位后，先通过I2C配置VOUT值，再打开Enable。
是否有其他符合我们需求的芯片。（TPSM8287A06似乎可以，只是module封装太大了）
