SI78XX
Elektronische Bauelemente
3-Terminal
Positive Voltage Regulator
TO-251
Description
The SI78XX series of fixed-voltage monolithic intergrated-
circuit voltage regulators designed for a wide range of
applications. These applications include on-card regulation
for elimination of noise and distribution problems associated
with single-point regulation. Each of these regulators can
deliver up to 1A of output current. The internal current limiting
and thermal shutdown features of there trgulators make
them essentially immune to overload.
Features
*5V,6V,8V,9V,10V,12V,15V,18V,24V Output Voltage Available
*Output Transistor Safe-Area Compensation
*No External Components
*Internal Thermal Overload Protection
*Internal Short-Circuit Current Limiting
*High Power Dissipation Capability
REF.
A
B
C
D
E
F
Millimeter
Min.
Max.
6.40
6.80
5.20
5.50
6.80
7.20
7.20
7.80
2.30 REF.
0.60
0.90
REF.
G
H
J
K
L
M
Millimeter
Min.
Max.
0.50
0.70
2.20
2.40
0.45
0.60
0.45
0.60
0.90
1.50
5.40
5.80
Absolute Maximum Ratings
Parameter
Input Voltage
Output Current
Operating Junction And Storage Temperature Range
Thermal Resistance Junction-Air
Thermal Resistance Junction-Cases
SI7805~18
SI7824
Symbol
V
IN
V
IN
I
O
Tj, Tstg
Rθ
JA
Rθ
JC
Ratings
35
40
1
-55~+150
125
12.5
Unit
V
V
A
o
C
o
W/
C
o
W/
C
Electrical Characteristics
SI7805
(Refer to the test circuits,Tj=0~125 C, I
O
=500mA, V
IN
=10V, C
IN
=0.33uF, C
O
=0.1uF unless otherwise specified)
Symbol
Test Condition
Min.
Typ.
Unit
Max.
V
O
A-Rank
(3%)
B-Rank
(5%)
V
O
(Line Regulation)
o
4.85
4.75
_
_
_
_
_
5
3
1
V
O
(Load Regulation)
I
Q
I
Q
V
N
RR
V
D
I
SC
I
PK
V
O
/ Tj
http://www.SeCoSGmbH.com/
_
_
_
_
_
_
_
_
_
_
_
_
_
_
5.15
5.25
50
25
100
50
8
0.5
1.3
_
_
_
V
mV
mV
mA
mA
uA
dB
V
mA
mA
o
mV/
C
40
80
2
250
1.8
-0.6
_
_
_
V
IN
=10V,I
O
=500mA,Tj=25
C
7.5V
≤
V
IN
≤
20V, 5mA
≤
I
O
≤
1A,PD
≤
15W
o
7V
≤
V
IN
≤
25V,I
O
=500mA, Tj=25
C
o
8V
≤
V
IN
≤
12V,I
O
=500mA ,
Tj=25
C
V
IN
=10V, 5mA
≤
I
O
≤
1A,
Tj=25
o
C
V
IN
=10V, 250mA
≤
I
O
≤
750mA,
Tj=25
o
C
o
V
IN
=10V,I
O
=500mA,Tj=25
C
V
IN
=10V, 5mA
≤
I
O
≤
1A
7V
≤
V
IN
≤
25V,I
O
=500mA
o
10Hz
≤
f
≤
100Hz,
Tj=25
C
o
8V
≤
V
IN
≤
18V,f=120Hz,
Tj=25
C
o
I
o
=1A, Tj=25
C
o
V
IN
=35V,
Tj=25
C
o
Tj=25
C
o
o
I
O
=5mA,0
C
≤
Tj
≤
25
C
Any changing of specification will not be informed individual
o
01-Jun-2002 Rev. A
Page 1 of
6
SI78XX
Elektronische Bauelemente
3-Terminal
Positive Voltage Regulator
SI7806
(Refer to the test circuits,Tj=0~125 C, I
O
=500mA, V
IN
=11V, C
IN
=0.33uF, C
O
=0.1uF unless otherwise specified)
Symbol
Test Condition
Min.
Typ.
Unit
Max.
V
O
A-Rank
(3%)
B-Rank
(5%)
V
O
(Line Regulation)
o
5.82
5.7
_
_
_
_
_
6
3
1
V
O
Regulation)
(Load
I
Q
I
Q
V
N
RR
V
D
I
SC
I
PK
V
O
/ Tj
_
_
_
_
_
_
_
_
_
_
_
_
_
_
6.18
6.3
60
25
100
50
8
0.5
1.3
_
_
_
V
mV
mV
mA
mA
uA
dB
V
mA
mA
o
mV/
C
45
75
2
250
1.8
-0.7
_
_
_
V
IN
=11V,I
O
=500mA,Tj=25
C
8V
≤
V
IN
≤
21V, 5mA
≤
I
O
≤
1A,PD
≤
15W
o
8V
≤
V
IN
≤
25V,I
O
=500mA, Tj=25
C
o
9V
≤
V
IN
≤
13V,I
O
=500mA ,
Tj=25
C
V
IN
=11V, 5mA
≤
I
O
≤
1A,
Tj=25
o
C
V
IN
=11V, 250mA
≤
I
O
≤
750mA,
Tj=25
o
C
o
V
IN
=11V,I
O
=500mA,Tj=25
C
V
IN
=11V, 5mA
≤
I
O
≤
1A
8V
≤
V
IN
≤
25V,I
O
=500mA
o
10Hz
≤
f
≤
100Hz,
Tj=25
C
o
9V
≤
V
IN
≤
19V,f=120Hz,
Tj=25
C
o
I
o
=1A, Tj=25
C
o
V
IN
=35V,
Tj=25
C
o
Tj=25
C
o
o
I
O
=5mA,0
C
≤
Tj
≤
25
C
o
SI7808
(Refer to the test circuits,Tj=0~125 C, I
O
=500mA, V
IN
=14V, C
IN
=0.33uF, C
O
=0.1uF unless otherwise specified)
Symbol
Test Condition
Unit
Min.
Typ.
Max.
V
O
A-Rank
(3%)
B-Rank
(5%)
V
O
(Line Regulation)
o
7.76
7.6
_
_
_
_
_
8
3
1
V
O
(Load Regulation)
I
Q
I
Q
V
N
RR
V
D
I
SC
I
PK
V
O
/ Tj
_
_
_
_
_
_
_
_
_
_
_
_
_
_
8.24
8.4
80
40
100
50
8
0.5
1.3
_
_
_
V
mV
mV
mA
mA
uA
dB
V
mA
mA
o
mV/
C
58
72
2
250
1.8
-0.9
_
_
_
V
IN
=14V,I
O
=500mA,Tj=25
C
10.5V
≤
V
IN
≤
23V, 5mA
≤
I
O
≤
1A,PD
≤
15W
o
10.5V
≤
V
IN
≤
25V,I
O
=500mA, Tj=25
C
o
11V
≤
V
IN
≤
17V,I
O
=500mA ,
Tj=25
C
V
IN
=14V, 5mA
≤
I
O
≤
1A,
Tj=25
o
C
V
IN
=14V, 250mA
≤
I
O
≤
750mA,
Tj=25
o
C
o
V
IN
=14V,I
O
=500mA,Tj=25
C
V
IN
=14V, 5mA
≤
I
O
≤
1A
10.5V
≤
V
IN
≤
25V,I
O
=500mA
o
10Hz
≤
f
≤
100Hz,
Tj=25
C
o
11.5V
≤
V
IN
≤
21.5V,f=120Hz,
Tj=25
C
o
I
o
=1A, Tj=25
C
o
V
IN
=35V,
Tj=25
C
o
Tj=25
C
o
o
I
O
=5mA,0
C
≤
Tj
≤
25
C
o
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 2 of
6
SI78XX
Elektronische Bauelemente
3-Terminal
Positive Voltage Regulator
SI7809
(Refer to the test circuits,Tj=0~125 C, I
O
=500mA, V
IN
=15V, C
IN
=0.33uF, C
O
=0.1uF unless otherwise specified)
Symbol
Test Condition
Min.
Typ.
Unit
Max.
V
O
A-Rank
(3%)
B-Rank
(5%)
V
O
(Line Regulation)
o
8.73
8.55
_
_
_
_
_
9
5
3
V
O
(Load Regulation)
I
Q
I
Q
V
N
RR
V
D
I
SC
I
PK
V
O
/ Tj
_
_
_
_
_
_
_
_
_
_
_
_
_
_
9.27
9.45
90
45
100
50
8
0.5
1.3
_
_
_
V
mV
mV
mA
mA
uA
dB
V
mA
mA
o
mV/
C
58
72
2
250
1.8
-1.1
_
_
_
V
IN
=15V,I
O
=500mA,Tj=25
C
11.5V
≤
V
IN
≤
24V, 5mA
≤
I
O
≤
1A,PD
≤
15W
o
11.5V
≤
V
IN
≤
25V,I
O
=500mA, Tj=25
C
o
13V
≤
V
IN
≤
19V,I
O
=500mA ,
Tj=25
C
V
IN
=15V, 5mA
≤
I
O
≤
1A,
Tj=25
o
C
V
IN
=15V, 250mA
≤
I
O
≤
750mA,
Tj=25
o
C
o
V
IN
=15V,I
O
=500mA,Tj=25
C
V
IN
=15V, 5mA
≤
I
O
≤
1A
11.5V
≤
V
IN
≤
26V,I
O
=500mA
o
10Hz
≤
f
≤
100Hz,
Tj=25
C
o
12.5V
≤
V
IN
≤
22.5V,f=120Hz,
Tj=25
C
o
I
o
=1A, Tj=25
C
o
V
IN
=35V,
Tj=25
C
o
Tj=25
C
o
o
I
O
=5mA,0
C
≤
Tj
≤
25
C
o
SI7810
(Refer to the test circuits,Tj=0~125 C, I
O
=500mA, V
IN
=16V, C
IN
=0.33uF, C
O
=0.1uF unless otherwise specified)
Symbol
Test Condition
Min.
Typ.
Unit
Max.
V
O
A-Rank
(3%)
B-Rank
(5%)
V
O
(Line Regulation)
o
9.7
9.5
_
_
_
_
10
_
_
_
_
_
V
O
Regulation)
(Load
I
Q
I
Q
V
N
RR
V
D
I
SC
I
PK
V
O
/ Tj
_
_
_
_
_
_
_
_
_
_
_
_
58
72
2
250
1.8
-1.1
10.3
10.5
100
50
100
50
8
0.5
1
_
_
_
V
mV
mV
mA
mA
uA
dB
V
mA
mA
o
mV/
C
_
_
_
V
IN
=16V,I
O
=500mA,Tj=25
C
12.5V
≤
V
IN
≤
25V, 5mA
≤
I
O
≤
1A,PD
≤
15W
o
13V
≤
V
IN
≤
25V,I
O
=500mA, Tj=25
C
o
14V
≤
V
IN
≤
20V,I
O
=500mA ,
Tj=25
C
V
IN
=16V, 5mA
≤
I
O
≤
1A,
Tj=25
o
C
V
IN
=16V, 250mA
≤
I
O
≤
750mA,
Tj=25
o
C
o
V
IN
=16V,I
O
=500mA,Tj=25
C
V
IN
=16V, 5mA
≤
I
O
≤
1A
12.5V
≤
V
IN
≤
25V,I
O
=500mA
o
10Hz
≤
f
≤
100Hz,
Tj=25
C
o
13V
≤
V
IN
≤
23V,f=120Hz,
Tj=25
C
o
I
o
=1A, Tj=25
C
o
V
IN
=35V,
Tj=25
C
o
Tj=25
C
o
o
I
O
=5mA,0
C
≤
Tj
≤
25
C
o
http://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Any changing of specification will not be informed individual
Page 3 of
6
SI78XX
Elektronische Bauelemente
3-Terminal
Positive Voltage Regulator
SI7812
(Refer to the test circuits,Tj=0~125 C, I
O
=500mA, V
IN
=19V, C
IN
=0.33uF, C
O
=0.1uF unless otherwise specified)
Symbol
Test Condition
Min.
Typ.
Unit
Max.
V
O
A-Rank
(3%)
B-Rank
(5%)
V
O
(Line Regulation)
o
11.64
11.4
_
_
_
_
12
_
10
3
_
_
_
_
_
V
O
(Load Regulation)
I
Q
I
Q
V
N
RR
V
D
I
SC
I
PK
V
O
/ Tj
_
_
_
_
_
_
_
_
_
12.36
12.6
120
60
100
60
8
0.5
1.3
_
_
_
V
mV
mV
mA
mA
uA
dB
V
mA
mA
o
mV/
C
75
72
2
250
1.8
-1.5
_
_
_
V
IN
=19V,I
O
=500mA,Tj=25
C
14.5V
≤
V
IN
≤
27V, 5mA
≤
I
O
≤
1A,PD
≤
15W
o
14.5V
≤
V
IN
≤
30V,I
O
=500mA, Tj=25
C
o
16V
≤
V
IN
≤
22V,I
O
=500mA ,
Tj=25
C
V
IN
=19V, 5mA
≤
I
O
≤
1A,
Tj=25
o
C
V
IN
=19V, 250mA
≤
I
O
≤
750mA,
Tj=25
o
C
o
V
IN
=19V,I
O
=500mA,Tj=25
C
V
IN
=19V, 5mA
≤
I
O
≤
1A
14.5V
≤
V
IN
≤
30V,I
O
=500mA
o
10Hz
≤
f
≤
100Hz,
Tj=25
C
o
15V
≤
V
IN
≤
25V,f=120Hz,
Tj=25
C
o
I
o
=1A, Tj=25
C
o
V
IN
=35V,
Tj=25
C
o
Tj=25
C
o
o
I
O
=5mA,0
C
≤
Tj
≤
25
C
o
SI7815
(Refer to the test circuits,Tj=0~125 C, I
O
=500mA, V
IN
=23V, C
IN
=0.33uF, C
O
=0.1uF unless otherwise specified)
Symbol
Test Condition
Min.
Typ.
Unit
Max.
V
O
A-Rank
(3%)
B-Rank
(5%)
V
O
(Line Regulation)
o
14.55
14.25
_
_
_
_
15
_
_
_
_
_
_
_
_
V
O
Regulation)
(Load
I
Q
I
Q
V
N
RR
V
D
I
SC
I
PK
V
O
/ Tj
_
_
_
_
_
_
_
_
_
15.45
15.75
150
75
150
75
8
0.5
1.3
_
_
_
V
mV
mV
mA
mA
uA
dB
V
mA
mA
o
mV/
C
90
70
2
250
1.8
-1.8
_
_
_
V
IN
=23V,I
O
=500mA,Tj=25
C
17.5V
≤
V
IN
≤
30V, 5mA
≤
I
O
≤
1A,PD
≤
15W
o
17.5V
≤
V
IN
≤
30V,I
O
=500mA, Tj=25
C
o
17.5V
≤
V
IN
≤
30V,I
O
=500mA ,
Tj=25
C
V
IN
=23V, 5mA
≤
I
O
≤
1A,
Tj=25
o
C
V
IN
=23V, 250mA
≤
I
O
≤
750mA,
Tj=25
o
C
o
V
IN
=23V,I
O
=500mA,Tj=25
C
V
IN
=23V, 5mA
≤
I
O
≤
1A
17.5V
≤
V
IN
≤
30V,I
O
=500mA
o
10Hz
≤
f
≤
100Hz,
Tj=25
C
o
18.5V
≤
V
IN
≤
28.5V,f=120Hz,
Tj=25
C
o
I
o
=1A, Tj=25
C
o
V
IN
=35V,
Tj=25
C
o
Tj=25
C
o
o
I
O
=5mA,0
C
≤
Tj
≤
25
C
o
http://www.SeCoSGmbH.com
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 4 of 6
SI78XX
Elektronische Bauelemente
3-Terminal
Positive Voltage Regulator
SI7818
(Refer to the test circuits,Tj=0~125 C, I
O
=500mA, V
IN
=27V, C
IN
=0.33uF, C
O
=0.1uF unless otherwise specified)
Symbol
Test Condition
Min.
Typ.
Unit
Max.
V
O
A-Rank
(3%)
B-Rank
(5%)
V
O
(Line Regulation)
o
17.46
17.1
_
_
_
_
18
_
_
_
_
_
_
_
_
V
O
Regulation)
(Load
I
Q
I
Q
V
N
RR
V
D
I
SC
I
PK
V
O
/ Tj
_
_
_
_
_
_
_
_
_
18.54
18.9
180
90
180
90
8
0.5
1.3
_
_
_
V
mV
mV
mA
mA
uA
dB
V
mA
mA
o
mV/
C
110
69
2
250
1.8
-2.2
_
_
_
V
IN
=27V,I
O
=500mA,Tj=25
C
21V
≤
V
IN
≤
33V, 5mA
≤
I
O
≤
1A,PD
≤
15W
o
21V
≤
V
IN
≤
33V,I
O
=500mA, Tj=25
C
o
24V
≤
V
IN
≤
30V,I
O
=500mA ,
Tj=25
C
V
IN
=27V, 5mA
≤
I
O
≤
1A,
Tj=25
o
C
V
IN
=27V, 250mA
≤
I
O
≤
750mA,
Tj=25
o
C
o
V
IN
=27V,I
O
=500mA,Tj=25
C
V
IN
=27V, 5mA
≤
I
O
≤
1A
21V
≤
V
IN
≤
33V,I
O
=500mA
o
10Hz
≤
f
≤
100Hz,
Tj=25
C
o
22V
≤
V
IN
≤
32V,f=120Hz,
Tj=25
C
o
I
o
=1A, Tj=25
C
o
V
IN
=35V,
Tj=25
C
o
Tj=25
C
o
o
I
O
=5mA,0
C
≤
Tj
≤
25
C
o
SI7824
(Refer to the test circuits,Tj=0~125 C, I
O
=500mA, V
IN
=33V, C
IN
=0.33uF, C
O
=0.1uF unless otherwise specified)
Symbol
Test Condition
Min.
Typ.
Unit
Max.
V
O
A-Rank
(3%)
B-Rank
(5%)
V
O
(Line Regulation)
o
23.28
22.8
_
_
_
_
24
_
_
_
_
_
_
_
_
V
O
(Load Regulation)
I
Q
I
Q
V
N
RR
V
D
I
SC
I
PK
V
O
/ Tj
_
_
_
_
_
_
_
_
_
24.72
25.2
240
120
240
120
8
0.5
1.0
_
_
_
V
mV
mV
mA
mA
uA
dB
V
mA
mA
o
mV/
C
170
66
2
250
1.8
-2.8
_
_
_
V
IN
=33V,I
O
=500mA,Tj=25
C
27V
≤
V
IN
≤
38V, 5mA
≤
I
O
≤
1A,PD
≤
15W
o
27V
≤
V
IN
≤
38V,I
O
=500mA, Tj=25
C
o
30V
≤
V
IN
≤
36V,I
O
=500mA ,
Tj=25
C
V
IN
=33V, 5mA
≤
I
O
≤
1A,
Tj=25
o
C
V
IN
=33V, 250mA
≤
I
O
≤
750mA,
Tj=25
o
C
o
V
IN
=33V,I
O
=500mA,Tj=25
C
V
IN
=33V, 5mA
≤
I
O
≤
1A
28V
≤
V
IN
≤
38V,I
O
=500mA
o
10Hz
≤
f
≤
100Hz,
Tj=25
C
o
28V
≤
V
IN
≤
38V,f=120Hz,
Tj=25
C
o
I
o
=1A, Tj=25
C
o
V
IN
=35V,
Tj=25
C
o
Tj=25
C
o
o
I
O
=5mA,0
C
≤
Tj
≤
25
C
o
http://www.SeCoSGmbH.com/
01
-Jun-2002 Rev. A
Any changing of specification will not be informed individual
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5
of
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