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hI
等否输出600mA要看输入电压的,最大输出电流估算是Vin*1.1/1.2*0.8/5 ,例如如果电池电压低到1.5V, 那么最大输出电流只有大约0.22A, 即便满电压输入3, 效率越高一点,此时最大的输出也就0.5A左右,而随电池电压下降,效率变差,负载能力也变差。