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DC-DC芯片FB分压电阻电路设计
Date:April 7, 2024 Views:420
在使用到DCDC芯片电路设计时会遇到计算分压电阻问题,下面简单介绍下如何计算
如下电路,输出电压为Vout=1.8V
查询芯片VFB电压为多少
datasheet上查到VFB电压VFB=0.5V
计算公式如下
R1通常选用可调电阻,50K或200K等等都可以。R1选定值后,计算R2公式如下:
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矽源特科技ChipSourceTek
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