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L123 Datasheet Preview

L123 Datasheet

HIGH PRECISION VOLTAGE REGULATOR

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L123 pdf
'SLiNEAR INTEGRATED CIRCUIT
HIGH PRECISION VOLTAGE REGULATOR
• INPUT VOLTAGE UP TO 40V
• OUTPUT VOLTAGE ADJUSTABLE FROM 2 T037V
• POSITIVE OR NEGATIVE SUPPLY OPERATION
• SERIES, SHUNT, SWITCHING OR FLOATING OPERATION
• OUTPUT CURRENT TO 150 rnA WITHOUT EXTERNAL PASS TRANSISTOR
• ADJUSTABLE CURRENT LIMITING
The L123 is a monolithic integrated prQgrammable voltage regulator, assembled in 14-lead dual in-line
plastic package and 10-lead Metal Can (TO-100 type). The circuit provides internal current limiting.
When the output current excedes 150 rnA an external NPN or PNP pass element may be used. Provisions
are made for adjustable current limiting and remote shut-down.
ABSOLUTE MAXIMUM RATINGS
Vi
lN i_O
10
I ref
Ptot
Input voltage
Dropout voltage
Output current
Current from V ref
Power dissipation (at Tamb = 70°C) Plastic DIP
TO-100
Operating junction temperature
Storage temperature
L123
L123C
40V
40V
150mA
15 rnA
520mW
-25 to 150°C
-65 to 150 °C
40V
40V
150mA
25mA
1W
520mW
oto 70°C
-65 to 150°C
MECHANICAL DATA
Dimensions in mm
49 6/82



SGS
SGS

L123 Datasheet Preview

L123 Datasheet

HIGH PRECISION VOLTAGE REGULATOR

No Preview Available !

L123 pdf
CONNECTION DIAGRAM AND ORDERING NUMBERS
(top views)
CURRENT
LIMIT
INVERTING
INPUT
NON-
INVERTING 3
INPUT
PIN 5
V
connected Iotas€' - S
NC
CURRENT
liMIT
CURRENT
SENSE
INVERT.
INPUT
NON-
INVERT
INPUT
Vref
-v,
NC
13
FREQUENCY
COMP.
" ·v,
Vc
'0 v,
Vz
NC
Type
L123
L123C
TO-l00
L123T
L123CT
Plastic DIP
-
L123CB
BLOCK DIAGRAM
INVERT.
INPUT
FREQUENCY
CQMPENS Ve
TEST CIRCUIT
(Pin configuration relative to the Plastic package)
I
I
ISERIES PASS
TRANSISTOR
NON-INVERT. CURRENT CURRENT ~
INPUT
LIMIT
SENSE
Vj'" 12V
Vo '" 5V
10'" 1 mA
A1IJR 2 .;;;; 10 Kn
THERMAL DATA
Rth j-amb Thermal resistance junction-ambient
50
TO-100
Plastic DIP
max


Part Number L123
Description HIGH PRECISION VOLTAGE REGULATOR
Maker SGS
Total Page 8 Pages
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L123 pdf
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