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求推荐一款升压芯片

Other Parts Discussed in Thread: TPS65131, TPS65130, TPS7A33

电池供电电源模块,求一款可以产生正负15V左右电压的芯片或者设计,手上有TPS7A3301和TPS7A4701两款芯片,最终输出电压有正负12V正负5V即可,输出电流0.5A足矣,本人对电源的了解较少,希望电路尽可能简单。