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TPS54428: UVP测试不对

Part Number: TPS54428

您好

我们在测试TPS54428DRCT的DC2DC时,用CC模式测试,UVP约为6V,当VREG5大于UVP值的时候,也没有输出,直到6V左右才起来的。这是为什么呢

附上CR模式下的测试图参考