Hi,
I am using PCA9306 for level translation from 3.3 V to 1.8V on i2c Bus.
1. First doubt I have is on the orientation of the IC as the one supplied to me does not have a reference dot mentioned in the datasheet, it rather has a laser marked line on one side. Not sure this is for indicating pin1?
2. When used in the orientation shown in the schematic (laser marked line as reference for pin 1), we find LDO losses regulation. With changed orientation LDO starts working but the I2C master is unable to pull the input lines (pin 7, 8 on P1 CONNECTOR) to low, they always remain at high state.