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你好，
已经将你的问题翻译到E2E, 你可以关注以下连接：
https://e2e.ti.com/support/power_management/non-isolated_dcdc/f/196/t/639055
Hi
1。这个管子的作用datasheet里面有描述：
2。 不用延时，这一块的电路可以不要的。
5，6 管脚接地就可以
