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找DCDC电源芯片

Other Parts Discussed in Thread: TPS54428, TPS54426

应用环境:12V 2AH蓄电池供电,转3.3V电源供电,需要能工作一周,

需要找的芯片:DC电源芯片在运行时电流能尽量小,看了TPS54428/54228,运行电流在1mA比较大(不是shutdown时的),因为DC是一直开着的。

麻烦TI工程师帮忙推荐一款DCDC芯片,希望能满足条件,同时价格尽量低些。

谢谢!