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BQ25750: BQ25750的REGN LDO的工作状态疑问

Part Number: BQ25750

您好,目前情况是测量BQ25750的REGN引脚电压远达不到5V,只有2.5V。

VAC处于正常工作窗口,PG引脚被下拉至低电平示意电源输入良好。

CE引脚为低电平,EN_CHG处于默认状态。

REGN是外接4.7uF电容后接至DRV_SUP引脚做驱动电源。