Nexperia's datasheets are absolute raging garbage fires in my opinion. Every time I come across them in work my skin crawls.
Funny, I feel the same way about auto-bidirectional level shifters!
Unless you are using the automatic bidirectional functionality, I strongly suggest you design out that part. Their biasing requirements are a little fussy but can be accommodated. The bigger issue is that they are very susceptible to noise: it is very easy for a small glitch on one line to flip its direction, causing output driver contention and possible damage. In my experience, the only time they are ever appropriate is for a true bidirectional signal with no direction signal. Some ADI ADCs use such a protocol for configuration; this is a mistake, but one you just have to design around.
The warning in TI's datasheet, §9.2.1.2.1 (yes, really
) is instructive; emphasis in original:
If either output is push-pull, data must be unidirectional or the outputs must be tri-state and be controlled by some direction-control mechanism to prevent HIGH-to-LOW bus contention in either direction. If both outputs are open-drain,no direction control is needed.
If all you need is fixed- or programmed-direction translation, there are several such ICs in the '244 family and others that will do it. If you have a common bus such as I²C or SPI, again, there are ICs for that. And if you do need to keep this craptacular device (as, sometimes, one must), I suggest fixing up the symbol. There's no real reason to have A8 and B8 separate, or A7 and B7 misaligned.
Loads can be achieved with a zener (crummy regulation), zener reference (TLV431 and friends), true source-sink supply (rare in LDOs -- often used for DDR termination, you may have some luck there; sync buck switchers can do it), or, if you know the maximum current to sink, just a humble resistor. Many or most designs get away without any additional load, because there is enough base load on the rail to just absorb the current.