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TI的大师门,请问下TPS54331DR-5V输出电路中 反馈分压电阻Rfbb-1.93K 0.1%能否用1%精度的代替?
Hi
取决对输出电压精度的要求,不过一般这类芯片反馈电阻都是用的1%精度,不需要0.1%精度。
Hi
这个是依据计算,选择最贴近计算值的值,同时保证有这个规格的电阻。