The datasheet for TPS65218D0 lists that the i2c address is always 0x24. However, sometimes datasheets specify i2c addresses as a 7-bit number, and other times it is specified as an 8-bit number with the LSb (read/write bit) being the implicit 0. It's not clear from the datasheet which is which.
Is it this:
Or is it this:
x would be the read/write control bit of the i2c byte.