L123.pdf 데이터시트 (총 8 페이지) - 파일 다운로드 L123 데이타시트 다운로드

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'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

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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

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ELECTRICAL CHARACTERISTICS (Refer to the test circuit, Tamb = 25°C unless otherwise
specified)
Parameter
Test conditions
t:,vo
~
-/',V-o
Vo
V ref
SVR
/',V o
~
Ise
Vi
Vo
Vi-YO
Id
Line regulation
Load regu lation
Reference voltage
Ripple rejection
Output voltage drift
Short circuit current
limiting
Input voltage range
Output voltage range
Quiescent drain
current
Vi~12t015V
~ 12 to 40V
Vi - 12 to 15V;
T min";; Tamb ~ T max
10 ~ 1 to 50 mA
T min ~ Tamb ~ T max
10~1t010mA
Iref~ 160!L A
f ~ 100 Hz to 10KHz
Cref~ 0
Cref~ 5 !L F
Rsc~ 10n
Vo~ 0
10 ~ 0
Vi ~ 30V
Long term stability
eN
Output noise voltage
BW~ 100 Hz to 10 KHz
Cref~ 0
Cref~ 5 !LF
Vz
Output zener vOltage
Iz ~ 1 mA
(for plastic package
only)
Note: T min ~ O°C iL123C); -25°C (l123).
T max~ 70°C (l123C); 150°C il123).
L123C
L123
Unit
Min. Typ. Max. Min. Typ. Max.
0.01
0.1
0.1
0.5
0.3
0.01
0.02
0.1
0.2
0.3
%
%
%
0.03 0.2
0.03 0.15 %
0.6 0.6 %
6.8 7.15 7.5 6.95 7.15 7.35 V
74
86
150
65
74 dB
86 dB
150 --p-pamc
65 mA
9.5 40 9.5 40 V
2 37 2 37 V
3 38 3 38 V
2.3 4
0.1
20
2.5
6.9 7.7
2.3 5 mA
- -% -
0.1 1000
hrs
Ij
Ii20 !LV
2.5 !LV
V I;
51