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LM123 データシート(PDF) 4 Page - Texas Instruments

部品番号 LM123
部品情報  3-Amp, 5-Volt Positive Regulator
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ホームページ  http://www.ti.com
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LM123 データシート(HTML) 4 Page - Texas Instruments

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LM123, LM323-N, LM323A
SNVS757B – MAY 2004 – REVISED NOVEMBER 2004
www.ti.com
LM323A/LM323-N Electrical Characteristics
(1)
Parameter
Conditions
LM323A
LM323-N
Units
Min
Typ
Max
Min
Typ
Max
Output Voltage
Tj = 25°C
4.95
5
5.05
4.8
5
5.2
V
VIN = 7.5V, IOUT = 0A
7.5V
≤ VIN ≤ 15V
4.85
5.15
4.75
5.25
V
0A
≤ IOUT ≤ 3A, P ≤ 30W
Line Regulation(2)
Tj = 25°C
5
10
5
25
mV
7.5V
≤ VIN ≤ 15V
Load Regulation(2)
Tj = 25°C, VIN = 7.5V,
25
50
25
100
mV
0A
≤ IOUT ≤ 3A
Quiescent Current
7.5V
≤ VIN ≤ 15V,
12
20
12
20
mA
0A
≤ IOUT ≤ 3A
Output Noise Voltage
Tj = 25°C
40
40
μVrms
10 Hz
≤ f ≤ 100 kHz
Short Circuit Current Limit
Tj = 25°C
VIN = 15V
3
4.5
3
4.5
A
VIN = 7.5V
4
6
4
5
A
Long Term Stability
35
35
mV
Thermal Resistance Junction to
2
2
°C/W
Case (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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Copyright © 2004, Texas Instruments Incorporated
Product Folder Links: LM123 LM323-N LM323A


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