LM123, LM323-N, LM323A
SNVS757B –MAY 2004–REVISED NOVEMBER 2004
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Units
(1)
LM323A/LM323-N Electrical Characteristics
Parameter
Conditions
LM323A
Typ
LM323-N
Typ
Min
Max
Min
Max
Output Voltage
Tj = 25°C
VIN = 7.5V, IOUT = 0A
4.95
5
5.05
4.8
5
5.2
V
V
7.5V ≤ VIN ≤ 15V
0A ≤ IOUT ≤ 3A, P ≤ 30W
4.85
5.15
10
4.75
5.25
25
Line Regulation(2)
Tj = 25°C
7.5V ≤ VIN ≤ 15V
5
5
mV
mV
mA
μVrms
Load Regulation(2)
Quiescent Current
Tj = 25°C, VIN = 7.5V,
0A ≤ IOUT ≤ 3A
25
12
40
50
25
12
40
100
20
7.5V ≤ VIN ≤ 15V,
0A ≤ IOUT ≤ 3A
20
Output Noise Voltage
Short Circuit Current Limit
Tj = 25°C
10 Hz ≤ f ≤ 100 kHz
Tj = 25°C
VIN = 15V
VIN = 7.5V
3
4
4.5
6
3
4
4.5
5
A
A
Long Term Stability
35
35
mV
Thermal Resistance Junction to
Case
2
2
°C/W
(3)
(1) Unless otherwise noted, specifications apply for −55°C ≤ Tj ≤ +150°C for the LM123, −40°C ≤ Tj ≤ +125°C for the LM323A, and 0°C ≤ Tj
≤ +125°C for the LM323-N. Although power dissipation is internally limited, specifications apply only for P ≤ 30W.
(2) Load and line regulation are specified at constant junction temperature. Pulse testing is required with a pulse width ≤ 1 ms and a duty
cycle ≤ 5%.
(3) Without a heat sink, the thermal resistance of the TO-3 package is about 35°C/W. With a heat sink, the effective thermal resistance can
only approach the specified values of 2°C/W, depending on the efficiency of the heat sink.
4
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