after a voltage regulator with push pull op.

[colin]

"colin" <no.spam.for.me@ntlworld.com> wrote in message
news:dQTCe.1376$yH4.896@newsfe2-win.ntli.net...

Hi,
I was looking to simplify a voltage supply to generate +5/-5 v (+-10%)
100ma from an isolated 15v supply, all it needs is a 10v regulator and
something to provide the midway/gnd, or a pos and neg regulator and some
way
of balancing the gnd curremt, such as zeners acros the regulator inputs,
but
what would be realy neat is if there was a 10v regulator with a built in
5v
ref op with decent src/sink capability. some voltage refs src and sink
10ma
or so wich isnt realy enuogh. some regulators are multi op but dont src
and
sink.

even if i use single supply op amps i still need a midway reference for
bias
wich must be able to src/sink a reasonable amount.

gona try this wich might be a bit unconventional use of this ic but neat so
i thought id post it ..
its prob already in an app note somewhere

_________+5v
_|_ |
/_\ |
| |
C* ---
C ---
C |
| |
0v--------------+-----------+-----+----
| | |
____|____ C* |
| fb | C |
| lm2594 | C ---
| | C ---
+12v-------|vin op|______| |
|___gnd___| _|_ |
| /_\ |
|___________|_____|____-5v


Colin =^.^=