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TPS54340 DCDC芯片问题

Other Parts Discussed in Thread: LM2576, TPS54340, TPS3808

请问这个TPS54340芯片稳定性怎么样和LM2576比较。

现在TPS54340的EN不是很清楚怎么使用,尤其是公式中那几个参数

pin6是否可以不接?

Pin4的也不大清楚,

电压基准电阻公式中出现的是RHS和RLS请问都对应哪个电阻?