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
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HI
你设计输出电压是多少伏? 芯片要正常工作首先要保证输入电压大于Vout/D.