这个电源
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Hi
the bottom resistor in the resistor divider is selected to be in the 1 kΩ to 100 kΩ range. Select.
所以你低边电阻选择2kohm是可以的。
我说的功耗是指反馈电阻的功耗,电阻变小了,U^2/R 就变大了。对于芯片影响不大。