LM123/LM223 LM323: Three-Terminal 3A-5V Positive Voltage Regulators
LM123/LM223 LM323: Three-Terminal 3A-5V Positive Voltage Regulators
LM123/LM223 LM323: Three-Terminal 3A-5V Positive Voltage Regulators
LM323
.. OUTPUT CURRENT : 3A
INTERNAL CURRENT AND THERMAL LIMI-
.. TING
TYPICAL OUPUT IMPEDANCE : 0.01Ω
TO-3
DESCRIPTION
The LM123, LM223, LM323 are three-terminal posi-
tive voltage regulators with a preset 5V output and
a load driving capability of 3A. New circuit design
and processing techniques are used to provide the
high output current without sacrificing the regulation
characteristics of lower current devices.
The 3A regulator is virtually blowout proof.
Current limiting, power limiting and thermal shut- TO-220
down provide the same high level of reliability ob-
tained with these techniques in the LM209, 1A regu-
lator. ORDER CODES
An overall worst case specification for the combined Part Number Temperature Package
effects of input voltage, load current, ambient tem- Range K T
perature, and power dissipation ensure that the
LM123, LM223, LM323 will perform satisfactorily as LM123 -55 oC to 150 oC •
a system element. LM223 -25 oC to 150 oC •
LM323 0 oC to 125 oC • •
PIN CONNECTION
TO-3 TO-220
(bottom view) (front view)
1 - Input
2 - Output
3 - GND
1 - Input
2 - Output
THERMAL CHARACTERISTICS
Symbol Parameter Typ. Max. Unit
o
Rthj-case Junction-case Thermal Resistance TO-3 2 C/W
TO-220 3
o
Rthj-amb Junction-ambient Thermal Resistance TO-3 35 C/W
TO-220 50
SCHEMATIC DIAGRAM
Case VI VO GND
TO-3 1 2 Case
TO-220 1 2 3
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LM123-LM223-LM323
ELECTRICAL CHARACTERISICS
o o
LM123: -55 C < Tj < 150 C
LM223: -25 C < Tj < 150 o C
o
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LM123-LM223-LM323
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LM123-LM223-LM323
TYPICAL APPLICATIONS
BASIC 3A REGULATOR TRIMING OUTPUT TO 5V
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LM123-LM223-LM323
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LM123-LM223-LM323
mm inch
DIM.
MIN. TYP. MAX. MIN. TYP. MAX.
A D
P
G C E
U
B
O
N
P003F
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LM123-LM223-LM323
mm inch
DIM.
MIN. TYP. MAX. MIN. TYP. MAX.
A 4.40 4.60 0.173 0.181
C 1.23 1.32 0.048 0.051
D 2.40 2.72 0.094 0.107
D1 1.27 0.050
E 0.49 0.70 0.019 0.027
F 0.61 0.88 0.024 0.034
F1 1.14 1.70 0.044 0.067
F2 1.14 1.70 0.044 0.067
G 4.95 5.15 0.194 0.203
G1 2.4 2.7 0.094 0.106
H2 10.0 10.40 0.393 0.409
L2 16.4 0.645
L4 13.0 14.0 0.511 0.551
L5 2.65 2.95 0.104 0.116
L6 15.2 15.9 0.598 0.625
L7 6.2 6.6 0.244 0.260
L9 3.5 4.2 0.137 0.165
DIA. 3.75 3.85 0.147 0.151
E
A
D
C
D1
L2
F1
G1
H2
G
Dia.
F
F2
L5
L9
L7
L6 L4
P011C
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