looking for LM2940-5.0 datasheet

M

M. Saindoux

Guest
Hi,

I'm looking for the datasheet of the LM2940-5.0 regulator, the one used with
the Parallax BASIC Stamp 2 (small 8-pin SMT). I can only find the datasheet
for a higher current 1A TO-220 model on Internet.

Thanks!
M.S.
 
M. Saindoux wrote:
Hi,

I'm looking for the datasheet of the LM2940-5.0 regulator, the one used with
the Parallax BASIC Stamp 2 (small 8-pin SMT). I can only find the datasheet
for a higher current 1A TO-220 model on Internet.

Thanks!
M.S.


This one
Click to expand...
http://www.national.com/ds/LM/LM2940.pdf
has the 8 pin LLP package.
 
M. Saindoux wrote:
Hi,

I'm looking for the datasheet of the LM2940-5.0 regulator, the one used with
the Parallax BASIC Stamp 2 (small 8-pin SMT). I can only find the datasheet
for a higher current 1A TO-220 model on Internet.

Thanks!
M.S.
Click to expand...
http://www.alldatasheet.com/view.jsp?Searchword=LM2 ???

--
Many thanks,

Don Lancaster
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
voice: (928)428-4073 email: don@tinaja.com

Please visit my GURU's LAIR web site at http://www.tinaja.com
 
"John Popelish" <jpopelish@rica.net> wrote in message
news:fo-dneofq7R3UiPfRVn-sw@adelphia.com...
M. Saindoux wrote:
Hi,

I'm looking for the datasheet of the LM2940-5.0 regulator, the one used
with the Parallax BASIC Stamp 2 (small 8-pin SMT). I can only find the
datasheet for a higher current 1A TO-220 model on Internet.

Thanks!
M.S.


This one
http://www.national.com/ds/LM/LM2940.pdf
has the 8 pin LLP package.

I already got that PDF but no mention of a low power model with 100 or 50mA
Click to expand...
output ???

M.S.
 
Hello M. Saindoux,

I already got that PDF but no mention of a low power model with 100 or 50mA
output ???
Click to expand...
Low power doesn't necessarily mean low current. Power would be the total
dissipation which is, of course, smaller for the small devices when
compared to a TO220.

Regards, Joerg

http://www.analogconsultants.com
 
On Mon, 27 Jun 2005 17:45:24 -0400, "M. Saindoux"
<msaindoux4@fido.com> wrote:

"John Popelish" <jpopelish@rica.net> wrote in message
news:fo-dneofq7R3UiPfRVn-sw@adelphia.com...
M. Saindoux wrote:
Hi,

I'm looking for the datasheet of the LM2940-5.0 regulator, the one used
with the Parallax BASIC Stamp 2 (small 8-pin SMT). I can only find the
datasheet for a higher current 1A TO-220 model on Internet.

Thanks!
M.S.


This one
http://www.national.com/ds/LM/LM2940.pdf
has the 8 pin LLP package.

I already got that PDF but no mention of a low power model with 100 or 50mA
output ???
Click to expand...
The link provided has a data sheet describing the LLP part. The sheet
is dated Jan2003.

If the part you are looking for is really SO-8 or similar, then
perhaps a more recent datasheet will cover it. Perhaps you've got the
wrong part number or a rogue package from a different mfr. Some wafers
are just not suited to SO-8, due to real estate requirements.

Niether STMicro or Fairchild brand an SO-8 with this part number.

LM317L, 78L05 and LP2950/2954 are all available in SO-8. 78L05 and
LP2954 have a fixed 5V version.

The schematic for the Basic Stamp 2 lists LM2936 as the on-board
regulator.

RL
 
"legg" <legg@nospam.magma.ca> wrote in message
news:hah1c1d0gkkdep516q74op4b2c7pqim703@4ax.com...
On Mon, 27 Jun 2005 17:45:24 -0400, "M. Saindoux"
msaindoux4@fido.com> wrote:


"John Popelish" <jpopelish@rica.net> wrote in message
news:fo-dneofq7R3UiPfRVn-sw@adelphia.com...
M. Saindoux wrote:
Hi,

I'm looking for the datasheet of the LM2940-5.0 regulator, the one used
with the Parallax BASIC Stamp 2 (small 8-pin SMT). I can only find the
datasheet for a higher current 1A TO-220 model on Internet.

Thanks!
M.S.


This one
http://www.national.com/ds/LM/LM2940.pdf
has the 8 pin LLP package.

I already got that PDF but no mention of a low power model with 100 or
50mA
output ???

The link provided has a data sheet describing the LLP part. The sheet
is dated Jan2003.

If the part you are looking for is really SO-8 or similar, then
perhaps a more recent datasheet will cover it. Perhaps you've got the
wrong part number or a rogue package from a different mfr. Some wafers
are just not suited to SO-8, due to real estate requirements.

Niether STMicro or Fairchild brand an SO-8 with this part number.

LM317L, 78L05 and LP2950/2954 are all available in SO-8. 78L05 and
LP2954 have a fixed 5V version.

The schematic for the Basic Stamp 2 lists LM2936 as the on-board
regulator.
Click to expand...
Ok! I understand now.
There are two BS2 schematics, I picked the wrong one, thenOEM version.
Indeed it is in fact a LM2936 which is a 50mA regulator.

Thanks...
to the others too!

M.S.
 
You must log in or register to reply here.

Welcome to EDABoard.com

Sponsor

Back
Top