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求推荐一款合适的LED驱动IC

Other Parts Discussed in Thread: TPS40211

求推荐一款合适的LED驱动IC。LED是5串3并,VF是2.7~3.4V。输入电压12V,流过每一并路的LED的电流最大为1A多一点,三路总计3A多,输出总功率大约为50W,能进行调光。求推荐一款性价比高,出货量较大的IC。或者驱动5颗串联的LED,我这边使用三颗这样的IC。