I wanted to use LSF0102 translator IC to translate 5V to 3.3V with TWI/I2C but I noticed in datasheet it says it needs the low voltage/side's power source to be able to sink current (about 15mA of current sink):

And I started searching for an alternative translator that does not need a power source that can also sink current.
I came across the NCA9306 IC, which internal circuitry is -I dear to say- same/identical to the LSF0102 as shown in the datasheet. but NCA9306 doesnt mention that it needs to sink current. And I wonder how both ICs are so similar but the NCA9306 doesnt mention current sink.

Question:

1. Does NCA9306 translator IC need a current source that can also sink current?
2. Where and how, in the datasheets of the ICs is the current sink value mentioned in the electrical characteristics table(s)? I can not spot it.

The current sink must be a capability of the power supply, not the IC so maybe this is why its not mentioned in NCA9306?

I wanted to use LSF0102 translator IC to translate 5V to 3.3V with TWI/I2C but I noticed in datasheet it says it needs the low voltage/side's power source to be able to sink current (about 15mA of current sink):

And I started searching for an alternative translator that does not need a power source that can also sink current.
I came across the NCA9306 IC, which internal circuitry is -I dear to say- same/identical to the LSF0102 as shown in the datasheet. but NCA9306 doesnt mention that it needs to sink current. And I wonder how both ICs are so similar but the NCA9306 doesnt mention current sink.

Question:

1. Does NCA9306 translator IC need a current source that can also sink current?
2. Where and how, in the datasheets of the ICs is the current sink value mentioned in the electrical characteristics table(s)? I can not spot it.

The current sink must be a capability of the power supply, not the IC so maybe this is why its not mentioned in NCA9306?