EN与5V输入直接连接,上电后Vout为Vin-Vdo即5V-0.9V,SNS铺铜连接Vout。型号为TLV76733DRVR,是否芯片损坏?手工刷锡膏+热风枪焊接,特地注意风枪没有吹很久。
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Hi
TLV76733是输出3.3V, TLV767芯片的最大输出才是Vin-Vdromax.
如果5V输入,输出是5-0.9V的话,芯片是已经损坏了,确认一下底部的Powerpad是否充分与GND焊接?