TI中文支持网在手册上看到TPS659121的默认输出跟Config1引脚不管，无论Config1为高或者低都是输出都一样。
另外这款PMU，不能外接EEPROM修改上电默认配置吗
Johnsin Tao：
HITable 3-1 lists the default output voltages for the DC-DC converters and the LDOs. For DCDC1 to DCDC4
and LDO1 to LDO4, there are two registers defining the output voltage. DCDCx_OP and LDOx_OP is
used in active mode when CONFIG2=1. With CONFIG2=0, the status of the DCDCx_SEL pin is used to
select between register _OP vs _AVS. With DCDCx_SEL=0, the _OP register defines the output voltage
while _AVS sets the output voltage when DCDCx_SEL=1. LDO1 to LDO4 can be mapped to one of the
DCDCx_SEL pins. See Section 7.13 for register DEF_VOLT_MAPPING for details.
Vental Mao：
可以通过内部寄存器修改输出的
