wondering if a particular IC exists...

[igor47]

So, i design this project hoping to use an hc125 3-state buffer and then i find that the voltage compliance on that thing is like .1mA at 5V. i've been looking high and low for some sort analogous chip (quad 3-state buffer) which can fill capacitors. basically, four outputs, when enabled putting out +5V with at least 10mA, and when disabledare are in a high-impedance state.

anyone know if such a beast exists?

 

[Warpspeed]

How about one of the 8 bit wide bus buffers, maybe an HC245 ?

That is specified as 330mV drop at 7.8mA, but you could parallel up several outputs to improve on that.