SL4503B Hex Buffer High-Voltage Silicon-Gate CMOS The SL4503B is a hex noninverting buffer with 3 -state outputs having high sink- and source-current capability. Two output ENABLE controls are provided, one of which controls four buffers and the other controls the remaining two buffers. Operating Voltage Range: 3.0 to 18 V Maximum input current of 1 µA at 18 V over full packagetemperature range; 100 nA at 18 V and 25°C Nois e margin (over full package temperature r.