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请问个问题,一个升压DCDC,如果输入电压和输出电压相同,会出现什么情况

Other Parts Discussed in Thread: TPS55340

使用的TPS55340芯片做升压,输出+24V,目前大部分情况锂电池供电,输入电压在12V~16.8V下,极少数情况出现+24V输入,我想知道,如果输入+24V,输出调节为+24V,会对电源或芯片有什么影响.如果此芯片不行能否推荐一个芯片?