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LM5122: Dual phase无法升压问题

Part Number: LM5122

Hi,

我使用LM5122设计了一个dual phase升压电路,贴片回来之后发现升压输出等于输入电压24V。原理图如附件。我想问一下dual phase升压是必须使用外部同步时钟吗?还有就是我这个原理图设计是否存在问题,导致升压不正常。

02_DRV POWER.pdf