This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

板卡没有图纸请帮忙鉴定这个ic型号



你好,我有个板卡没有图纸,想鉴定图片中ic的型号(丝印内容 BOR 71J P30R不知道是否有错请参照图片),芯片前后有两个胆电容(图上已经拆下),图上有电感,判断估计是电源管理芯片,升压型,前端和后端电容电压分别为6v和18v,求鉴定,谢谢