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LM5175 LM5176当输入电压与输出电压接近的时候带载不正常

Other Parts Discussed in Thread: LM5175, LM5176

LM5175设计输出24V3A,

输入电压22V左右的,带阻性负载启动输出电压不正常(19V左右)继续调低输入电压到19V的时候工作突然正常,继续升高电压至30V正常

从30V电压降低至22V时又不正常,低至19V又正常

LM5176也是如此

论坛里面有个工程师也反映类似的问题,我看一直没有解决