Pin 1 – V
IN
Pin 2 – Ground
Pin 3 – V
OUT
Case – Ground
G Package – TO–257
1 2 3
IP123A SERIES
IP123
A
SERIES
IP323A SERIES
LM123 SERIES
Semelab plc.
Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
Prelim. 8/95
3 AMP
POSITIVE
VOLTAGE REGULATORS
V
I
DC Input Voltage
P
D
Power Dissipation
T
J
Operating Junction Temperature Range
T
STG
Storage Temperature Range
T
L
Lead Temperature (Soldering, 10 sec)
35V
Internally limited
See Ordering Information
–65°C to +150°C
300°C
ABSOLUTE MAXIMUM RATINGS
(T
C
= 25°C unless otherwise stated)
FEATURES
• 0.04%/V LINE REGULATION
• 0.3%/A LOAD REGULATION
• THERMAL OVERLOAD PROTECTION
• SHORT CIRCUIT PROTECTION
• SAFE OPERATING AREA PROTECTION
• 1% TOLERANCE
• START–UP WITH NEGATIVE VOLTAGE
(± SUPPLIES) ON OUTPUT
• AVAILABLE IN 5V, 12V AND 15V OPTIONS
Pin 1 – V
IN
Pin 2 – V
OUT
Case – Ground
K Package – TO–3
Pin 1 – V
IN
Pin 2 – Ground
Pin 3 – V
OUT
Case – Ground
V Package – TO–218
1
2
3
1
2
3
Pin 1 – V
IN
Pin 2 – Ground
Pin 3 – V
OUT
SG Package – TO–220SM
CERAMIC SURFACE MOUNT
1
3
2
Pin 1 – V
IN
Pin 2 – Ground
Pin 3 – V
OUT
Case – Ground
T Package – TO–220
1
2
3
4.8
5
5.2
4.75
5.25
25
100
14
3.0
3.0
40
60
80
56
3
4
35
2
4
TBA
4.95
5
5.05
4.85
5.15
15
50
10
1.5
1.5
40
66
80
60
3
4
35
1.5
2.5
3
4
TBA
V
O
Output Voltage
∆
V
O
Line Regulation
∆
V
O
Load Regulation
I
Q
Quiescent Current
∆
I
Q
Quiescent Current
Change
V
N
Output Noise
Voltage
∆
V
IN
Ripple Rejection
∆
V
O
I
SC
Short Circuit Current
Long Term Stability
R
θ
JC
Thermal Resistance
Junction to Case
I
O
= 1A
V
IN
= 7.5V
P
OUT
≤
P
MAX
2
V
IN
= 8V to 15V
I
O
= 5mA to 3A
T
J
= Over Temp. Range
1
I
O
= 1A
V
IN
= 7.5V to 15V
T
J
= Over Temp. Range
1
V
IN
= 8V
I
O
= 5mA to 3A
T
J
= Over Temp. Range
1
V
IN
= 8V
I
O
= 5mA to 3A
T
J
= Over Temp. Range
1
V
IN
= 8V
I
O
= 5mA to 3A
T
J
= Over Temp. Range
1
I
O
= 1A
V
IN
= 7.5V to 15V
T
J
= Over Temp. Range
1
f = 10Hz to 100kHz
f = 120Hz
V
IN
= 8V to 18V
I
O
= 1A
T
J
= Over Temp. Range
1
V
IN
= 15V
V
IN
= 7.5V
K Package , V Package
G Package , T Package
SG Package
Notes
1) Applies over full temperature range:–
T
J
= –55 to +150°C for IP123A / IP123 / LM123
T
J
=
0 to +125°C for IP323A
All other specifications apply at T
J
= 25°C unless otherwise stated.
2) P
MAX
= 30W for K–Pack (TO–3) , V–Pack (TO–218) and G–Pack (TO–257) Packages.
P
MAX
= 25W for T–Pack (TO–220) Package.
P
MAX
= 15W for SG–Pack (TO–220SM) Package.
3) All characteristics are measured with a capacitor across the input of 0.22
µ
F and a capacitor across the output of 0.1
µ
F.
4) All characteristics except noise voltage and ripple rejection ratios are measured using pulse techniques (t
p
≤
10ms ,
δ ≤
5%).
5) Output voltage changes due to changes into internal temperature must be taken into account separately.
IP123A SERIES
IP123
A
SERIES
IP323A SERIES
LM123 SERIES
Semelab plc.
Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
Prelim. 8/95
IP123A–05
IP123–05
IP323A–05
LM123–05
Parameter
Test Conditions
Min.
Typ.
Max.
Min.
Typ.
Max. Units
V
V
mV
mV
mA
mA
mA
µ
Vrms
dB
A
mV
°C/W
ELECTRICAL CHARACTERISTICS
(T
J
= 25°C unless otherwise stated)
11.5
12
12.5
11.4
12.6
60
150
14
3.0
3.0
75
52
72
48
3
4
84
2
4
TBA
11.88
12
12.12
11.64
12.36
36
75
10
1.5
1.5
75
58
72
52
3
4
84
1.5
2.5
3
4
TBA
IP123A SERIES
IP123
A
SERIES
IP323A SERIES
LM123 SERIES
Semelab plc.
Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
Prelim. 8/95
V
O
Output Voltage
∆
V
O
Line Regulation
∆
V
O
Load Regulation
I
Q
Quiescent Current
∆
I
Q
Quiescent Current
Change
V
N
Output Noise
Voltage
∆
V
IN
Ripple Rejection
∆
V
O
I
SC
Short Circuit Current
I
pk
Peak Output Current
Long Term Stability
R
θ
JC
Thermal Resistance
Junction to Case
IP123A–12
IP123–12
IP323A–12
LM123–12
Parameter
Test Conditions
Min.
Typ.
Max.
Min.
Typ.
Max.
Units
V
V
mV
mV
mA
mA
mA
µ
Vrm
dB
A
A
mV
°C/W
I
O
= 1A
V
IN
= 14.8V
P
OUT
≤
P
MAX
2
V
IN
= 15.4V to 22V
I
O
= 5mA to 3A
T
J
= Over Temp. Range
1
I
O
= 1A
V
IN
= 14.8V to 22V
T
J
= Over Temp. Range
1
V
IN
= 15.4V
I
O
= 5mA to 3A
T
J
= Over Temp. Range
1
V
IN
= 15.4V
I
O
= 5mA to 3A
T
J
= Over Temp. Range
1
V
IN
= 15.4V
I
O
= 5mA to 3A
T
J
= Over Temp. Range
1
I
O
= 1A
V
IN
= 14.8V to 22V
T
J
= Over Temp. Range
1
f = 10Hz to 100kHz
f = 120Hz
V
IN
= 15.4V to 25.4V
I
O
= 1A
T
J
= Over Temp. Range
1
V
IN
= 15.4V
V
IN
= 15.4V
K Package , V Package
G Package , T Package
SG Package
Notes
1) Applies over full temperature range:–
T
J
= –55 to +150°C for IP123A / IP123 / LM123
T
J
=
0 to +125°C for IP323A
All other specifications apply at T
J
= 25°C unless otherwise stated.
2) P
MAX
= 30W for K–Pack (TO–3) , V–Pack (TO–218) and G–Pack (TO–257) Packages.
P
MAX
= 25W for T–Pack (TO–220) Package.
P
MAX
= 15W for SG–Pack (TO–220SM) Package.
3) All characteristics are measured with a capacitor across the input of 0.22
µ
F and a capacitor across the output of 0.1
µ
F.
4) All characteristics except noise voltage and ripple rejection ratios are measured using pulse techniques (t
p
≤
10ms ,
δ ≤
5%).
5) Output voltage changes due to changes into internal temperature must be taken into account separately.
ELECTRICAL CHARACTERISTICS
(T
J
= 25°C unless otherwise stated)
IP123A SERIES
IP123
A
SERIES
IP323A SERIES
LM123 SERIES
Semelab plc.
Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
Prelim. 8/95
14.85
15
15.15
14.55
15.45
45
75
10
1.5
1.5
90
56
70
50
2.5
4
105
1.5
2.5
3
4
TBA
14.4
15
15.6
14.25
15.75
75
150
14
3.0
3.0
90
50
70
46
2.5
4
105
2
4
TBA
V
O
Output Voltage
∆
V
O
Line Regulation
∆
V
O
Load Regulation
I
Q
Quiescent Current
∆
I
Q
Quiescent Current
Change
V
N
Output Noise
Voltage
∆
V
IN
Ripple Rejection
∆
V
O
I
SC
Short Circuit Current
I
pk
Peak Output Current
Long Term Stability
R
θ
JC
Thermal Resistance
Junction to Case
IP123A–15
IP123–15
IP323A–15
LM123–15
Parameter
Test Conditions
Min.
Typ.
Max.
Min.
Typ.
Max. Units
V
V
mV
mV
mA
mA
mA
µ
Vrm
dB
A
A
mV
°C/W
Notes
1) Applies over full temperature range:–
T
J
= –55 to +150°C for IP123A / IP123 / LM123
T
J
=
0 to +125°C for IP323A
All other specifications apply at T
J
= 25°C unless otherwise stated.
2) P
MAX
= 30W for K–Pack (TO–3) , V–Pack (TO–218) and G–Pack (TO–257) Packages.
P
MAX
= 25W for T–Pack (TO–220) Package.
P
MAX
= 15W for SG–Pack (TO–220SM) Package.
3) All characteristics are measured with a capacitor across the input of 0.22
µ
F and a capacitor across the output of 0.1
µ
F.
4) All characteristics except noise voltage and ripple rejection ratios are measured using pulse techniques (t
p
≤
10ms ,
δ ≤
5%).
5) Output voltage changes due to changes into internal temperature must be taken into account separately.
ELECTRICAL CHARACTERISTICS
(T
J
= 25°C unless otherwise stated)
I
O
= 1A
V
IN
= 17.9V
P
OUT
≤
P
MAX
2
V
IN
= 18.5V to 25V
I
O
= 5mA to 3A
T
J
= Over Temp. Range
1
I
O
= 1A
V
IN
= 17.9V to 25V
T
J
= Over Temp. Range
1
V
IN
= 18.5V
I
O
= 5mA to 3A
T
J
= Over Temp. Range
1
V
IN
= 18.5V
I
O
= 5mA to 3A
T
J
= Over Temp. Range
1
V
IN
= 18.5V
I
O
= 5mA to 3A
T
J
= Over Temp. Range
1
I
O
= 1A
V
IN
= 17.9V to 25V
T
J
= Over Temp. Range
1
f = 10Hz to 100kHz
f = 120Hz
V
IN
= 18.5V to 28.5V
I
O
= 1A
T
J
= Over Temp. Range
1
V
IN
= 18.5V
V
IN
= 18.5V
K Package , V Package
G Package , T Package
SG Package
IP123A SERIES
IP123
A
SERIES
IP323A SERIES
LM123 SERIES
Semelab plc.
Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
Prelim. 8/95
0
25
50
75
100
125
-50
-25
150
0.98
1.02
0.99
1.01
Tem perature (˚C )
N
o
rm
a
lis
e
d
O
u
tp
u
t
V
o
lt
a
g
e
(
V
)
1.00
Frequency (H z)
O
u
tp
u
t
Im
p
e
d
a
n
c
e
(
Ω
)
10
100
1k
10k
100k
1M
0.0001
0.001
0.01
0.1
1
10
C = 0
O U T
C = 10
µ
F
O U T
V = 10V
IN
V = 5V
O U T
I = 1A
O U T
25
50
75
100
125
0
10
20
30
40
Am bient Temperature (˚ C)
T
AM B
M
a
x
im
u
m
A
v
e
ra
g
e
P
o
w
e
r
D
is
s
ip
a
ti
o
n
(
W
)
P
D
(A
V
)
θ
SA OF HEATSINKS
INFINITE
HEAT SINK
1.3 ˚C/W
2.4 ˚C/W
3.3 ˚ C/W
6.3 ˚C/W
10.5 ˚C/W
25
50
75
100
125
0
Am bient Temperature (˚C )
T
AM B
10
20
30
40
M
a
x
im
u
m
A
v
e
ra
g
e
P
o
w
e
r
D
is
s
ip
a
ti
o
n
(
W
)
P
D
(A
V
)
θ
SA OF HEATSINKS
INFINITE
HEAT SINK
1.3 ˚C/W
2.4 ˚C/W
3.3 ˚C/W
6.3 ˚C/W
10.5 ˚C/W
TYPICAL PERFORMANCE CHARACTERISTICS
OUTPUT IMPEDANCE
OUTPUT VOLTAGE
(Normalised to 1V at T
J
= 25°C)
MAXIMUM AVERAGE POWER DISSIPATION
( For IP323AK, IP323K, IP323AV, IP323V)
MAXIMUM AVERAGE POWER DISSIPATION
( For IP123AK, IP123K, IP123AG, IP123G)
IP123A SERIES
IP123
A
SERIES
IP323A SERIES
LM123 SERIES
Semelab plc.
Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
Prelim. 8/95
Frequency (H z)
R
ip
p
le
R
e
je
c
ti
o
n
(
d
B
)
1
10
100
1k
10k
100k
1M
20
40
60
80
100
V = 5V
O U T
C = 0
O U T
T = 25˚C
J
V = 13V D C + 3.5V rms
IN
I = 50mA
OU T
I = 3A
O U T
Output Voltage (V)
R
ip
p
le
R
e
je
c
ti
o
n
(
d
B
)
0
5
10
15
20
25
50
60
70
80
90
T = 25˚C
J
V – V = 8V DC + 3.5V rms
IN
O U T
I = 1A
O U T
F = 120Hz
Input – Output Differential (V)
O
u
tp
u
t
C
u
rr
e
n
t
(A
)
0
5
10
15
20
25
30
35
0
1
2
3
4
5
6
I = 3A
OUT
I = 1A
OUT
I = 0.5A
OUT
∆
V = 100mV
OUT
In
p
u
t
–
O
u
tp
u
t
D
if
fe
re
n
ti
a
l
(V
)
0.50
1.00
1.50
2.00
2.50
Junction Temperature (˚C)
0
25
50
75
100 125
-50
-25
150
-75
T = –55˚C
J
T = 25˚C
J
T = 150˚C
J
TYPICAL PERFORMANCE CHARACTERISTICS
DROPOUT VOLTAGE
RIPPLE REJECTION
RIPPLE REJECTION
Input Voltage (V)
O
u
tp
u
t
C
u
rr
e
n
t
(m
A
)
5
10
15
20
25
30
35
3.50
4.00
4.50
5.00
5.50
6.00
6.50
V = 5V
O UT
T = 25˚C
J
I = 1A
O UT
Q
u
ie
s
c
e
n
t
C
u
rr
e
n
t
(m
A
)
3.50
4