PMIC (Power Management Integrated Circuits)

As the table suggest, the current source tells the device how much current the Vbus can supply. The customer would need to choose how much current they want the device to draw in case CC pin is OVLO.

No, the EN_TST pin is a test enable pin that is for test purposes only, it cannot be used for enable/disable control. EN_TST should be always connected to ground.

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Customers might drive active speakers by the wired 3.5mm jack. The high voltage supply of active speakers might be leakaged to 3.5mm jack and then damage codec. So we need audio OVP to protect codec from…