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LM123 データシート(PDF) 3 Page - Texas Instruments

部品番号 LM123
部品情報  3-Amp, 5-Volt Positive Regulator
Download  13 Pages
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
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LM123 データシート(HTML) 3 Page - Texas Instruments

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LM123, LM323-N, LM323A
www.ti.com
SNVS757B – MAY 2004 – REVISED NOVEMBER 2004
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1) (2) (3)
Input Voltage
20V
Power Dissipation
Internally Limited
Operating Junction Temperature Range
LM123
−55°C to +150°C
LM323A
−40°C to +125°C
LM323-N
0°C to +125°C
Storage Temperature Range
−65°C to +150°C
Lead Temperature (Soldering, 10 sec.)
300°C
ESD Tolerance(4)
2000V
(1)
“Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits.
(2)
Refer to RETS123K drawing for LM123K military specifications.
(3)
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
(4)
Human body model, 1.5 k
Ω in series with 100 pF.
LM123 Electrical Characteristics
(1)
Parameter
Conditions
LM123
Units
Min
Typ
Max
Output Voltage
Tj = 25°C
4.7
5
5.3
V
VIN = 7.5V, IOUT = 0A
7.5V
≤ VIN ≤ 15V
4.6
5.4
V
0A
≤ IOUT ≤ 3A, P ≤ 30W
Line Regulation (2)
Tj = 25°C
5
25
mV
7.5V
≤ VIN ≤ 15V
Load Regulation (2)
Tj = 25°C, VIN = 7.5V,
25
100
mV
0A
≤ IOUT ≤ 3A
Quiescent Current
7.5V
≤ VIN ≤ 15V,
12
20
mA
0A
≤ IOUT ≤ 3A
Output Noise Voltage
Tj = 25°C
40
μVrms
10 Hz
≤ f ≤ 100 kHz
Short Circuit Current Limit
Tj = 25°C
VIN = 15V
3
4.5
A
VIN = 7.5V
4
5
A
Long Term Stability
35
mV
Thermal Resistance Junction to Case(3)
2
°C/W
(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.
Copyright © 2004, Texas Instruments Incorporated
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Product Folder Links: LM123 LM323-N LM323A


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