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驱动工作电流约为为50mA的激光管,用什么芯片呢

Other Parts Discussed in Thread: TPS62260, TPS61120, LM3405

要求驱动电流0-50mA可调,因为整体采用电池供电,控制电压和工作电压不宜过大,求推荐一款芯片,谢谢