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Other Parts Discussed in Thread: LM3409, LM3421
需要做LED灯驱动恒流源电源，300-800mA左右，求推荐？
输入、输出电压范围是什么
输入是电池供电7-11.1V左右，输出6.3V，120mA.
楼主可以去看一下LM3409, LM3421等
