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MSP430FR2033电源短路

Other Parts Discussed in Thread: TLV1117

在用的一款产品中出现运行中挂掉的现象,拆机断电检查发现:3.3V电源对地电阻几欧姆到几十欧姆,而正常应该是几兆欧。

电源输入为8-36V,经LDO(LT3007ITS-3.3)输出3.3V,经反复开关机使用示波器测量确认3.3V不管是8V还是36V输入的情况下都不存在过冲。