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LM-2577 P+ Feeback 电压高

Other Parts Discussed in Thread: LM2577, LM25118

请教一下,我的 一个产品要用DC9V-21V的输入来设计,输入9V时可用LM2577升到14V/1A ,电路各项参数达标; 输入21V时,输出是20.6V左右,输出电压满足负载需求:14-21V, 在此时LM2577内部开关已经关断,电压经过电感和一个二极管至输出,这种状态是否会对LM2577有影响。