PF8100 VSNVS output Impossible Voltage

[chinachuli]

when i modify "i.MX8QXP MEK schematic" to my own imx8qxp board, see attachment，i find VSNVS pin output at 5v, in datesheet VSNVS max output voltage is 3.3v. i do not know where is wrong, thanks for give me some suggesstion!

我在用官方IMX8QXP修改至自己的核心板，主要是简化了不必要的接口电路，原理图见附件，但我板子做回来测量发现VSNVS的输出有5V，而数据手册上最高电压为3.3V，找了很大时间未找出原因，所以求助论坛，非常感谢！

[chinachuli]

Simplify board to only have pmic part, schematic see attachment，VSNVS also output 5V, Where is wrong

[guoweisun]

Hi,

Do you connect with light load on this VSNVS output then see the actual output?

[chinachuli]

when VSNVS load 1k ，the actual output still is 5V 

[guoweisun]

Hi

Do you mind have a phone call with me?

Or give your phone number!

[chinachuli]

孙工：

我想用二层板做一块pf8100的测试板，原理图见附件。

在 2018-12-04 13:17:36，"褚立" <chinachuli@163.com> 写道：

HI:

我的电话：18158182825 褚立 非常感谢！

[guoweisun]

Hi

可以这样做，或者你能预留一个Li-ion battery的位置方便调试，拉出来IIC的信号出来。

[chinachuli]

HI:

我的电话：18158182825 褚立 非常感谢！

[guoweisun]

Hi,

This should not PMIC's issue,you can disconnect VSNVS with your system only test VSNVS output to check PMIC good or not.