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TPS53355异常

Other Parts Discussed in Thread: TPS53355

使用TPS53355做1V/30A输出,给Marvell交换机控制器的CORE_VDD供电,我们在测试TPS53355发现如下问题:

TPS53355 (CORE_VDD): 当MARVELL SW 的AVS PIN关闭FB时,发现会有电流inrush+和inrush-很大的冲击,等待25ms后重新开启却只有很小的inrush电流,电路如附件所示

X32_07-DC2DC_AVS-TPS53355.pdf