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最近TPS5430的电路总是出问题,请教下怎么回事?

Other Parts Discussed in Thread: TPS5430

5430

TI61H

BEJAG4

还有

5430

TI63H

Z1FRG4

两个批次芯片上的丝印,希望TI工作人员帮忙确认一下这不是假货吧?