High current TL431?

[pftrvlr]

The max 100mA current makes TL431 useless to my application. Is there a higher current version of TL431? Or can a external transistor be used?

Thx.

[amc184]

Use an external transistor. I think there is even a schematic for this in the TL431 datasheet.

[peranders]

The answer is yes. Have you checked the datasheet? I'll recommend that you take a look at the end of it.

[lineup]

Originally posted by amc184
Use an external transistor.
I think there is even a schematic for this in the TL431 datasheet.

yes.
correct, amc184
for high current applications we use one Pass Transistor
with the TL431
Litterature, datasheet from Texas:
http://focus.ti.com/lit/ds/symlink/tl431.pdf

[xaudiox]

what is the best transistor for 200mA application? thanks

[pftrvlr]

Thanks guys. I did look at the datasheet before, but I guess I was blind.