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关于电源芯片TLV62130烧毁的问题求解

Other Parts Discussed in Thread: TLV62130

你们好,我司现使用TI的DC DC降压电源TLV62130,电路如

输入为12V,输出3.9V接GSM模块,现在出现在一个2000批量中出现十几台在使用过程中电源芯片TLV62130烧毁的情况,如下图所示:

出现这种情况下,GSM模块也烧损,4V的输入端出现短路,请问是什么情况会出现这么严重的烧毁现象?