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TPS54620输出电压不对,VSENSE也只有0.7V

Other Parts Discussed in Thread: TPS54620

我用TPS54620输出1V的电压,实际测量的时候只有0.88V,VSENSE引脚电压也只有0.7V,导致PG1V0一直是低电平,后续无法在工作。哪位大神碰到过这种问题呢,能帮我解决一下吗?

原理图如下

用示波器查看的BOOT引脚的波形如下图