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DCDC_BATT and VDD4P2 connection

Question asked by semihhazar on Jul 18, 2014
Latest reply on Jul 18, 2014 by igorpadykov

Hi,

 

We're using imx28 in 4V input only scenario and supplying power to DCDC_BATT and BATTERY pins. Since VDD5V is not used, 4P2LinReg is not used and I assume there's no use of the VDD4P2 pin. But why is there a diode connecting DCDC_BATT to VDD4P2?

 

I'd appreciate if you could briefly explain this.

 

Regards,

Semih

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