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以下為電路,發現12V to 3.3V,加上小負載電壓會下降至0.4V,請問可以確認那些部分,以及甚麼原因會造成此一現象,
另外同樣電路12V to 5V,匹配值不同,則未發生此一現象
Hi
带载能力下降，首先确认功率电感饱和电流足够大，其次确认电流保护电路，最后确认layout上功率回路尽量小。
已解決,謝謝
好的。
