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我看规格书上写的输入电压范围是0.5-4.4V，输出电压范围是1.8-4.0V，如果我选择输入电压为4.2V，输出电压设置为3.3V是否可以？如果不可以，那么最大输入电压4.4V该如何使用？非常感谢！
