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你好,楼主提到的是在2.4V输入状态下,3.3V/.25A的输出的固定负载,效率无法达到85%,而不是在其他的输出电流时的效率达不到,比如在200MA时效率才能达到85%,而250MA时却达不到,所以这个设计是达不到要求的,如图所示