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LV2843的SHDN管脚使能



  在使用LV2843芯片时,看到手册中写SHDN悬空时可以使能;同时也看到参考设计电路是将SHDN接到VIN脚,同时建议再接个100k的电阻。请问这两种使能方式哪种会更适合实际应用? VIN=36v,Vout=12v@300mA.