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LM123 Datasheet(PDF) 3 Page - STMicroelectronics

Part No. LM123
Description  THREE-TERMINAL 3A-5V POSITIVE VOLTAGE REGULATORS
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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ELECTRICAL CHARACTERISICS
LM123: -55
o C< Tj < 150 oC
LM223: -25
o C< Tj < 150 oC
LM323: 0
oC< Tj < 150 oC
Symbol
Parameter
LM123/LM223
LM323
Unit
Min.
Typ.
Max.
Min.
Typ.
Max.
VO
Output Voltage Range (Note 2)
Tamb =25
oC, VI = 7.5 V, IO =0
4.7
5
5.3
4.8
5
5.2
V
VO
Output Voltage Range (Note 2)
Tmin
≤ Tj ≤ Tmax,P ≤ Pmax
7.5 V
≤ VI ≤ 15 V, 0 ≤ IO ≤ 3A
4.6
5.4
4.75
5.25
V
KVI
Line Regulation (Note 3)
Tj =25
oC, 7.5 V
≤ VI ≤ 15V
5
25
5
25
mV
KVO
Load Regulation (Note 3)
Tj =25
oC, VI = 7.5 V, 0 ≤ IO ≤ 3A
25
100
25
100
mV
IIB
Quiescent Current
7.5 V
≤ VI ≤ 15 V, 0 ≤ IO ≤ 3A
12
20
12
20
mA
VNO
Output Noise Voltage
Tamb =25
oC, 10 Hz
≤ f ≤ 100 KHz
40
40
µVrms
IOS
Short Circuit Current Limit (Tj =25
oC)
VI =15 V
VI = 7.5V
3
4
4.5
5
3
4
4.5
5
A
A
KVH
Long Term Stability
35
35
mV
Notes : 1. Although power dissipation is internally limited, specifications apply only for P
≤ 30W.
2. Selected devices with tightened tolerance output voltage available.
3. Load and line regulation are specified at constant junction temperature. Pulse testing is required with a pulse width
≤ 1ms and a duty cycle ≤ 5%.
LM123-LM223-LM323
3/9




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