1/29
February 2003
s
OUTPUT CURRENT TO 1.5A
s
OUTPUT VOLTAGES OF 5; 5.2; 6; 8; 8.5; 9;
12; 15; 18; 24V
s
THERMAL OVERLOAD PROTECTION
s
SHORT CIRCUIT PROTECTION
s
OUTPUT TRANSITION SOA PROTECTION
DESCRIPTION
The L7800 series of three-terminal positive
regulators is available in TO-220, TO-220FP,
TO-3 and D
2
PAK packages and several fixed
output voltages, making it useful in a wide range of
applications. These regulators can provide local
on-card regulation, eliminating the distribution
problems associated with single point regulation.
Each type employs internal current limiting,
thermal shut-down and safe area protection,
making it essentially indestructible. If adequate
heat sinking is provided, they can deliver over 1A
output current. Although designed primarily as
fixed voltage regulators, these devices can be
used
with
external
components
to
obtain
adjustable voltage and currents.
L7800
SERIES
POSITIVE VOLTAGE REGULATORS
SCHEMATIC DIAGRAM
TO-220
D
2
PAK
TO-220FP
TO-3
L7800 SERIES
2/29
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.
THERMAL DATA
SCHEMATIC DIAGRAM
Symbol
Parameter
Value
Unit
V
I
DC Input Voltage
for V
O
= 5 to 18V
35
V
for V
O
= 20, 24V
40
I
O
Output Current
Internally Limited
P
tot
Power Dissipation
Internally Limited
T
stg
Storage Temperature Range
-65 to 150
C
T
op
Operating Junction Temperature
Range
for L7800
-55 to 150
C
for L7800C
0 to 150
Symbol
Parameter
D
2
PAK
TO-220
TO-220FP
TO-3
Unit
R
thj-case
Thermal Resistance Junction-case Max
3
5
5
4
C/W
R
thj-amb
Thermal Resistance Junction-ambient Max
62.5
50
60
35
C/W
L7800 SERIES
3/29
CONNECTION DIAGRAM (top view)
ORDERING CODES
(*) Available in Tape & Reel with the suffix "-TR".
TYPE
TO-220
D
2
PAK (*)
TO-220FP
TO-3
OUTPUT
VOLTAGE
L7805
L7805T
5 V
L7805C
L7805CV
L7805CD2T
L7805CP
L7805CT
5 V
L7852C
L7852CV
L7852CD2T
L7852CP
L7852CT
5.2 V
L7806
L7806T
6 V
L7806C
L7806CV
L7806CD2T
L7806CP
L7806CT
6 V
L7808
L7808T
8 V
L7808C
L7808CV
L7808CD2T
L7808CP
L7808CT
8 V
L7885C
L7885CV
L7885CD2T
L7885CP
L7885CT
8.5 V
L7809C
L7809CV
L7809CD2T
L7809CP
L7809CT
9 V
L7812
L7812T
12 V
L7812C
L7812CV
L7812CD2T
L7812CP
L7812CT
12 V
L7815
L7815T
15 V
L7815C
L7815CV
L7815CD2T
L7815CP
L7815CT
15 V
L7818
L7818T
18 V
L7818C
L7818CV
L7818CD2T
L7818CP
L7818CT
18 V
L7820
L7820T
20 V
L7820C
L7820CV
L7820CD2T
L7820CP
L7820CT
20 V
L7824
L7824T
24 V
L7824C
L7824CV
L7824CD2T
L7824CP
L7824CT
24 V
TO-220
TO-220FP
TO-3
D
2
PAK
L7800 SERIES
4/29
APPLICATION CIRCUITS
TEST CIRCUITS
Figure 1 : DC Parameter
Figure 2 : Load Regulation
L7800 SERIES
5/29
Figure 3 : Ripple Rejection
ELECTRICAL CHARACTERISTICS OF L7805 (refer to the test circuits, T
J
= -55 to 150C, V
I
= 10V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
4.8
5
5.2
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 8 to 20 V
4.65
5
5.35
V
V
O
(*)
Line Regulation
V
I
= 7 to 25 V
T
J
= 25C
3
50
mV
V
I
= 8 to 12 V
T
J
= 25C
1
25
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
100
mV
I
O
= 250 to 750 mA
T
J
= 25C
25
I
d
Quiescent Current
T
J
= 25C
6
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 8 to 25 V
0.8
V
O
/
T Output Voltage Drift
I
O
= 5 mA
0.6
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
40
V/V
O
SVR
Supply Voltage Rejection
V
I
= 8 to 18 V
f = 120Hz
68
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
2.5
V
R
O
Output Resistance
f = 1 KHz
17
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.75
1.2
A
I
scp
Short Circuit Peak Current
T
J
= 25C
1.3
2.2
3.3
A
L7800 SERIES
6/29
ELECTRICAL CHARACTERISTICS OF L7806 (refer to the test circuits, T
J
= -55 to 150C, V
I
= 11V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
ELECTRICAL CHARACTERISTICS OF L7808 (refer to the test circuits, T
J
= -55 to 150C, V
I
= 14V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
5.75
6
6.25
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 9 to 21 V
5.65
6
6.35
V
V
O
(*)
Line Regulation
V
I
= 8 to 25 V
T
J
= 25C
60
mV
V
I
= 9 to 13 V
T
J
= 25C
30
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
100
mV
I
O
= 250 to 750 mA
T
J
= 25C
30
I
d
Quiescent Current
T
J
= 25C
6
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 9 to 25 V
0.8
V
O
/
T Output Voltage Drift
I
O
= 5 mA
0.7
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
40
V/V
O
SVR
Supply Voltage Rejection
V
I
= 9 to 19 V
f = 120Hz
65
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
2.5
V
R
O
Output Resistance
f = 1 KHz
19
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.75
1.2
A
I
scp
Short Circuit Peak Current
T
J
= 25C
1.3
2.2
3.3
A
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
7.7
8
8.3
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 11.5 to 23 V
7.6
8
8.4
V
V
O
(*)
Line Regulation
V
I
= 10.5 to 25 V
T
J
= 25C
80
mV
V
I
= 11 to 17 V
T
J
= 25C
40
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
100
mV
I
O
= 250 to 750 mA
T
J
= 25C
40
I
d
Quiescent Current
T
J
= 25C
6
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 11.5 to 25 V
0.8
V
O
/
T Output Voltage Drift
I
O
= 5 mA
1
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
40
V/V
O
SVR
Supply Voltage Rejection
V
I
= 11.5 to 21.5 V
f = 120Hz
62
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
2.5
V
R
O
Output Resistance
f = 1 KHz
16
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.75
1.2
A
I
scp
Short Circuit Peak Current
T
J
= 25C
1.3
2.2
3.3
A
L7800 SERIES
7/29
ELECTRICAL CHARACTERISTICS OF L7812 (refer to the test circuits, T
J
= -55 to 150C, V
I
= 19V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
ELECTRICAL CHARACTERISTICS OF L7815 (refer to the test circuits, T
J
= -55 to 150C, V
I
= 23V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
11.5
12
12.5
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 15.5 to 27 V
11.4
12
12.6
V
V
O
(*)
Line Regulation
V
I
= 14.5 to 30 V
T
J
= 25C
120
mV
V
I
= 16 to 22 V
T
J
= 25C
60
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
100
mV
I
O
= 250 to 750 mA
T
J
= 25C
60
I
d
Quiescent Current
T
J
= 25C
6
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 15 to 30 V
0.8
V
O
/
T Output Voltage Drift
I
O
= 5 mA
1.5
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
40
V/V
O
SVR
Supply Voltage Rejection
V
I
= 15 to 25 V
f = 120Hz
61
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
2.5
V
R
O
Output Resistance
f = 1 KHz
18
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.75
1.2
A
I
scp
Short Circuit Peak Current
T
J
= 25C
1.3
2.2
3.3
A
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
14.4
15
15.6
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 18.5 to 30 V
14.25
15
15.75
V
V
O
(*)
Line Regulation
V
I
= 17.5 to 30 V
T
J
= 25C
150
mV
V
I
= 20 to 26 V
T
J
= 25C
75
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
150
mV
I
O
= 250 to 750 mA
T
J
= 25C
75
I
d
Quiescent Current
T
J
= 25C
6
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 18.5 to 30 V
0.8
V
O
/
T Output Voltage Drift
I
O
= 5 mA
1.8
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
40
V/V
O
SVR
Supply Voltage Rejection
V
I
= 18.5 to 28.5 V
f = 120Hz
60
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
2.5
V
R
O
Output Resistance
f = 1 KHz
19
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.75
1.2
A
I
scp
Short Circuit Peak Current
T
J
= 25C
1.3
2.2
3.3
A
L7800 SERIES
8/29
ELECTRICAL CHARACTERISTICS OF L7818 (refer to the test circuits, T
J
= -55 to 150C, V
I
= 26V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
ELECTRICAL CHARACTERISTICS OF L7820 (refer to the test circuits, T
J
= -55 to 150C, V
I
= 28V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
17.3
18
18.7
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 22 to 33 V
17.1
18
18.9
V
V
O
(*)
Line Regulation
V
I
= 21 to 33 V
T
J
= 25C
180
mV
V
I
= 24 to 30 V
T
J
= 25C
90
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
180
mV
I
O
= 250 to 750 mA
T
J
= 25C
90
I
d
Quiescent Current
T
J
= 25C
6
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 22 to 33 V
0.8
V
O
/
T Output Voltage Drift
I
O
= 5 mA
2.3
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
40
V/V
O
SVR
Supply Voltage Rejection
V
I
= 22 to 32 V
f = 120Hz
59
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
2.5
V
R
O
Output Resistance
f = 1 KHz
22
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.75
1.2
A
I
scp
Short Circuit Peak Current
T
J
= 25C
1.3
2.2
3.3
A
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
19.2
20
20.8
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 24 to 35 V
19
20
21
V
V
O
(*)
Line Regulation
V
I
= 22.5 to 35 V
T
J
= 25C
200
mV
V
I
= 26 to 32 V
T
J
= 25C
100
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
200
mV
I
O
= 250 to 750 mA
T
J
= 25C
100
I
d
Quiescent Current
T
J
= 25C
6
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 24 to 35 V
0.8
V
O
/
T Output Voltage Drift
I
O
= 5 mA
2.5
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
40
V/V
O
SVR
Supply Voltage Rejection
V
I
= 24 to 35 V
f = 120Hz
58
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
2.5
V
R
O
Output Resistance
f = 1 KHz
24
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.75
1.2
A
I
scp
Short Circuit Peak Current
T
J
= 25C
1.3
2.2
3.3
A
L7800 SERIES
9/29
ELECTRICAL CHARACTERISTICS OF L7824 (refer to the test circuits, T
J
= -55 to 150C, V
I
= 33V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
ELECTRICAL CHARACTERISTICS OF L7805C (refer to the test circuits, T
J
= -55 to 150C, V
I
= 10V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
23
24
25
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 28 to 38 V
22.8
24
25.2
V
V
O
(*)
Line Regulation
V
I
= 27 to 38 V
T
J
= 25C
240
mV
V
I
= 30 to 36 V
T
J
= 25C
120
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
240
mV
I
O
= 250 to 750 mA
T
J
= 25C
120
I
d
Quiescent Current
T
J
= 25C
6
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 28 to 38 V
0.8
V
O
/
T Output Voltage Drift
I
O
= 5 mA
3
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
40
V/V
O
SVR
Supply Voltage Rejection
V
I
= 28 to 38 V
f = 120Hz
56
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
2.5
V
R
O
Output Resistance
f = 1 KHz
28
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.75
1.2
A
I
scp
Short Circuit Peak Current
T
J
= 25C
1.3
2.2
3.3
A
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
4.8
5
5.2
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 7 to 20 V
4.75
5
5.25
V
V
O
(*)
Line Regulation
V
I
= 7 to 25 V
T
J
= 25C
3
100
mV
V
I
= 8 to 12 V
T
J
= 25C
1
50
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
100
mV
I
O
= 250 to 750 mA
T
J
= 25C
50
I
d
Quiescent Current
T
J
= 25C
8
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 7 to 25 V
0.8
V
O
/
T Output Voltage Drift
I
O
= 5 mA
-1.1
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
40
V/V
O
SVR
Supply Voltage Rejection
V
I
= 8 to 18 V
f = 120Hz
62
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
V
R
O
Output Resistance
f = 1 KHz
17
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.75
A
I
scp
Short Circuit Peak Current
T
J
= 25C
2.2
A
L7800 SERIES
10/29
ELECTRICAL CHARACTERISTICS OF L7852C (refer to the test circuits, T
J
= -55 to 150C, V
I
= 10V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
ELECTRICAL CHARACTERISTICS OF L7806C (refer to the test circuits, T
J
= -55 to 150C, V
I
= 11V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
5.0
5.2
5.4
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 8 to 20 V
4.95
5.2
5.45
V
V
O
(*)
Line Regulation
V
I
= 7 to 25 V
T
J
= 25C
3
105
mV
V
I
= 8 to 12 V
T
J
= 25C
1
52
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
105
mV
I
O
= 250 to 750 mA
T
J
= 25C
52
I
d
Quiescent Current
T
J
= 25C
8
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 7 to 25 V
1.3
V
O
/
T Output Voltage Drift
I
O
= 5 mA
-1
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
42
V/V
O
SVR
Supply Voltage Rejection
V
I
= 8 to 18 V
f = 120Hz
61
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
V
R
O
Output Resistance
f = 1 KHz
17
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.75
A
I
scp
Short Circuit Peak Current
T
J
= 25C
2.2
A
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
5.75
6
6.25
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 8 to 21 V
5.7
6
6.3
V
V
O
(*)
Line Regulation
V
I
= 8 to 25 V
T
J
= 25C
120
mV
V
I
= 9 to 13 V
T
J
= 25C
60
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
120
mV
I
O
= 250 to 750 mA
T
J
= 25C
60
I
d
Quiescent Current
T
J
= 25C
8
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 8 to 25 V
1.3
V
O
/
T Output Voltage Drift
I
O
= 5 mA
-0.8
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
45
V/V
O
SVR
Supply Voltage Rejection
V
I
= 9 to 19 V
f = 120Hz
59
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
V
R
O
Output Resistance
f = 1 KHz
19
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.55
A
I
scp
Short Circuit Peak Current
T
J
= 25C
2.2
A
L7800 SERIES
11/29
ELECTRICAL CHARACTERISTICS OF L7808C (refer to the test circuits, T
J
= -55 to 150C, V
I
= 14V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
ELECTRICAL CHARACTERISTICS OF L7885C (refer to the test circuits, T
J
= -55 to 150C, V
I
= 14.5V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
7.7
8
8.3
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 10.5 to 25 V
7.6
8
8.4
V
V
O
(*)
Line Regulation
V
I
= 10.5 to 25 V
T
J
= 25C
160
mV
V
I
= 11 to 17 V
T
J
= 25C
80
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
160
mV
I
O
= 250 to 750 mA
T
J
= 25C
80
I
d
Quiescent Current
T
J
= 25C
8
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 10.5 to 25 V
1
V
O
/
T Output Voltage Drift
I
O
= 5 mA
-0.8
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
52
V/V
O
SVR
Supply Voltage Rejection
V
I
= 11.5 to 21.5 V
f = 120Hz
56
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
V
R
O
Output Resistance
f = 1 KHz
16
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.45
A
I
scp
Short Circuit Peak Current
T
J
= 25C
2.2
A
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
8.2
8.5
8.8
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 11 to 26 V
8.1
8.5
8.9
V
V
O
(*)
Line Regulation
V
I
= 11 to 27 V
T
J
= 25C
160
mV
V
I
= 11.5 to 17.5 V
T
J
= 25C
80
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
160
mV
I
O
= 250 to 750 mA
T
J
= 25C
80
I
d
Quiescent Current
T
J
= 25C
8
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 11 to 27 V
1
V
O
/
T Output Voltage Drift
I
O
= 5 mA
-0.8
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
55
V/V
O
SVR
Supply Voltage Rejection
V
I
= 12 to 22 V
f = 120Hz
56
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
V
R
O
Output Resistance
f = 1 KHz
16
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.45
A
I
scp
Short Circuit Peak Current
T
J
= 25C
2.2
A
L7800 SERIES
12/29
ELECTRICAL CHARACTERISTICS OF L7809C (refer to the test circuits, T
J
= -55 to 150C, V
I
= 15V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
ELECTRICAL CHARACTERISTICS OF L7812C (refer to the test circuits, T
J
= -55 to 150C, V
I
= 19V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
8.65
9
9.35
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 11.5 to 26 V
8.55
9
9.45
V
V
O
(*)
Line Regulation
V
I
= 11.5 to 26 V
T
J
= 25C
180
mV
V
I
= 12 to 18 V
T
J
= 25C
90
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
180
mV
I
O
= 250 to 750 mA
T
J
= 25C
90
I
d
Quiescent Current
T
J
= 25C
8
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 11.5 to 26 V
1
V
O
/
T Output Voltage Drift
I
O
= 5 mA
-1
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
70
V/V
O
SVR
Supply Voltage Rejection
V
I
= 12 to 23 V
f = 120Hz
55
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
V
R
O
Output Resistance
f = 1 KHz
17
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.40
A
I
scp
Short Circuit Peak Current
T
J
= 25C
2.2
A
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
11.5
12
12.5
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 14.5 to 27 V
11.4
12
12.6
V
V
O
(*)
Line Regulation
V
I
= 14.5 to 30 V
T
J
= 25C
240
mV
V
I
= 16 to 22 V
T
J
= 25C
120
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
240
mV
I
O
= 250 to 750 mA
T
J
= 25C
120
I
d
Quiescent Current
T
J
= 25C
8
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 14.5 to 30 V
1
V
O
/
T Output Voltage Drift
I
O
= 5 mA
-1
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
75
V/V
O
SVR
Supply Voltage Rejection
V
I
= 15 to 25 V
f = 120Hz
55
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
V
R
O
Output Resistance
f = 1 KHz
18
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.35
A
I
scp
Short Circuit Peak Current
T
J
= 25C
2.2
A
L7800 SERIES
13/29
ELECTRICAL CHARACTERISTICS OF L7815C (refer to the test circuits, T
J
= -55 to 150C, V
I
= 23V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
ELECTRICAL CHARACTERISTICS OF L7818C (refer to the test circuits, T
J
= -55 to 150C, V
I
= 26V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
14.5
15
15.6
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 17.5 to 30 V
14.25
15
15.75
V
V
O
(*)
Line Regulation
V
I
= 17.5 to 30 V
T
J
= 25C
300
mV
V
I
= 20 to 26 V
T
J
= 25C
150
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
300
mV
I
O
= 250 to 750 mA
T
J
= 25C
150
I
d
Quiescent Current
T
J
= 25C
8
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 17.5 to 30 V
1
V
O
/
T Output Voltage Drift
I
O
= 5 mA
-1
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
90
V/V
O
SVR
Supply Voltage Rejection
V
I
= 18.5 to 28.5 V
f = 120Hz
54
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
V
R
O
Output Resistance
f = 1 KHz
19
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.23
A
I
scp
Short Circuit Peak Current
T
J
= 25C
2.2
A
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
17.3
18
18.7
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 21 to 33 V
17.1
18
18.9
V
V
O
(*)
Line Regulation
V
I
= 21 to 33 V
T
J
= 25C
360
mV
V
I
= 24 to 30 V
T
J
= 25C
180
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
360
mV
I
O
= 250 to 750 mA
T
J
= 25C
180
I
d
Quiescent Current
T
J
= 25C
8
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 21 to 33 V
1
V
O
/
T Output Voltage Drift
I
O
= 5 mA
-1
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
110
V/V
O
SVR
Supply Voltage Rejection
V
I
= 22 to 32 V
f = 120Hz
53
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
V
R
O
Output Resistance
f = 1 KHz
22
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.20
A
I
scp
Short Circuit Peak Current
T
J
= 25C
2.1
A
L7800 SERIES
14/29
ELECTRICAL CHARACTERISTICS OF L7820C (refer to the test circuits, T
J
= -55 to 150C, V
I
= 28V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
ELECTRICAL CHARACTERISTICS OF L7824C (refer to the test circuits, T
J
= -55 to 150C, V
I
= 33V,
I
O
= 500 mA, C
I
= 0.33 F, C
O
= 0.1 F unless otherwise specified).
(*) Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
19.2
20
20.8
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 23 to 35 V
19
20
21
V
V
O
(*)
Line Regulation
V
I
= 22.5 to 35 V
T
J
= 25C
400
mV
V
I
= 26 to 32 V
T
J
= 25C
200
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
400
mV
I
O
= 250 to 750 mA
T
J
= 25C
200
I
d
Quiescent Current
T
J
= 25C
8
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 23 to 35 V
1
V
O
/
T Output Voltage Drift
I
O
= 5 mA
-1
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
150
V/V
O
SVR
Supply Voltage Rejection
V
I
= 24 to 35 V
f = 120Hz
52
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
V
R
O
Output Resistance
f = 1 KHz
24
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.18
A
I
scp
Short Circuit Peak Current
T
J
= 25C
2.1
A
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O
Output Voltage
T
J
= 25C
23
24
25
V
V
O
Output Voltage
I
O
= 5 mA to 1 A
P
O
15W
V
I
= 27 to 38 V
22.8
24
25.2
V
V
O
(*)
Line Regulation
V
I
= 27 to 38 V
T
J
= 25C
480
mV
V
I
= 30 to 36 V
T
J
= 25C
240
V
O
(*)
Load Regulation
I
O
= 5 mA to 1.5 A
T
J
= 25C
480
mV
I
O
= 250 to 750 mA
T
J
= 25C
240
I
d
Quiescent Current
T
J
= 25C
8
mA
I
d
Quiescent Current Change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 27 to 38 V
1
V
O
/
T Output Voltage Drift
I
O
= 5 mA
-1.5
mV/C
eN
Output Noise Voltage
B =10Hz to 100KHz
T
J
= 25C
170
V/V
O
SVR
Supply Voltage Rejection
V
I
= 28 to 38 V
f = 120Hz
50
dB
V
d
Dropout Voltage
I
O
= 1 A
T
J
= 25C
2
V
R
O
Output Resistance
f = 1 KHz
28
m
I
sc
Short Circuit Current
V
I
= 35 V
T
J
= 25C
0.15
A
I
scp
Short Circuit Peak Current
T
J
= 25C
2.1
A
L7800 SERIES
15/29
Figure 4 : Dropout Voltage vs Junction
Temperature
Figure 5 : Peak Output Current vs Input/output
Differential Voltage
Figure 6 : Supply Voltage Rejection vs
Frequency
Figure 7 : Output Voltage vs Junction
Temperature
Figure 8 : Output Impedance vs Frequency
Figure 9 : Quiescent Current vs Junction
Temperature
L7800 SERIES
16/29
Figure 10 : Load Transient Response
Figure 11 : Line Transient Response
Figure 12 : Quiescent Current vs Input Voltage
Figure 13 : Fixed Output Regulator
NOTE:
1. To specify an output voltage, substitute voltage value for "XX".
2. Although no output capacitor is need for stability, it does improve transient response.
3. Required if regulator is locate an appreciable distance from power supply filter.
L7800 SERIES
17/29
Figure 14 : Current Regulator
Figure 15 : Circuit for Increasing Output Voltage
Figure 16 : Adjustable Output Regulator (7 to 30V)
V
xx
I
O
=
+ I
d
R
1
I
R1
5 Id
R
2
V
O
= V
XX
(1+
) + I
d
R
2
R
1
L7800 SERIES
18/29
Figure 17 : 0.5 to 10V Regulator
Figure 18 : High Current Voltage Regulator
Figure 19 : High Output Current with Short Circuit Protection
R
4
V
O
= V
xx
R
1
V
BEQ1
R
1
=
I
Q1
I
REQ
-
Q1
V
BEQ1
I
O
= I
REG
+ Q
1
(I
REG
)
R
1
V
BEQ2
V
O
=
I
SC
L7800 SERIES
19/29
Figure 20 : Tracking Voltage Regulator
Figure 21 : Split Power Supply ( 15V - 1 A)
* Against potential latch-up problems.
Figure 22 : Negative Output Voltage Circuit
L7800 SERIES
20/29
Figure 23 : Switching Regulator
Figure 24 : High Input Voltage Circuit
Figure 25 : High Input Voltage Circuit
Figure 26 : High Output Voltage Regulator
V
IN
= V
I -
(V
Z
+ V
BE
)
L7800 SERIES
21/29
Figure 27 : High Input and Output Voltage
Figure 28 : Reducing Power Dissipation with Dropping Resistor
Figure 29 : Remote Shutdown
V
O
= V
XX +
V
Z1
V
I(min) -
V
XX -
V
DROP(max)
R =
I
O(max) +
I
d(max)
L7800 SERIES
22/29
Figure 30 : Power AM Modulator (unity voltage gain, I
O
0.5)
NOTE: The circuit performs well up to 100 KHz.
Figure 31 : Adjustable Output Voltage with Temperature Compensation
NOTE: Q
2
is connected as a diode in order to compensate the variation of the Q
1
V
BE
with the temperature. C allows a slow rise time of the V
O
.
Figure 32 : Light Controllers (V
Omin
= V
XX
+ V
BE
)
R
2
V
O
= V
XX
(1+
)
+ V
BE
R
1
V
O
rises when the light goes up
V
O
falls when the light goes up
L7800 SERIES
23/29
Figure 33 : Protection against Input Short-Circuit with High Capacitance Loads
Application with high capacitance loads and an output voltage greater than 6 volts need an external diode (see fig. 33) to protect the device
against input short circuit. In this case the input voltage falls rapidly while the output voltage decrease slowly. The capacitance discharges by
means of the Base-Emitter junction of the series pass transistor in the regulator. If the energy is sufficiently high, the transistor may be de-
stroyed. The external diode by-passes the current from the IC to ground.
L7800 SERIES
24/29
DIM.
mm.
inch
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
A
11.85
0.466
B
0.96
1.05
1.10
0.037
0.041
0.043
C
1.70
0.066
D
8.7
0.342
E
20.0
0.787
G
10.9
0.429
N
16.9
0.665
P
26.2
1.031
R
3.88
4.09
0.152
0.161
U
39.5
1.555
V
30.10
1.185
TO-3 MECHANICAL DATA
P003C/C
E
B
R
C
D
A
P
G
N
V
U
O
L7800 SERIES
25/29
DIM.
mm.
inch
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
A
4.40
4.60
0.173
0.181
C
1.23
1.32
0.048
0.051
D
2.40
2.72
0.094
0.107
D1
1.27
0.050
E
0.49
0.70
0.019
0.027
F
0.61
0.88
0.024
0.034
F1
1.14
1.70
0.044
0.067
F2
1.14
1.70
0.044
0.067
G
4.95
5.15
0.194
0.203
G1
2.4
2.7
0.094
0.106
H2
10.0
10.40
0.393
0.409
L2
16.4
0.645
L4
13.0
14.0
0.511
0.551
L5
2.65
2.95
0.104
0.116
L6
15.25
15.75
0.600
0.620
L7
6.2
6.6
0.244
0.260
L9
3.5
3.93
0.137
0.154
DIA.
3.75
3.85
0.147
0.151
TO-220 MECHANICAL DATA
P011C
L7800 SERIES
26/29
DIM.
mm.
inch
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
A
4.40
4.60
0.173
0.181
B
2.5
2.7
0.098
0.106
D
2.5
2.75
0.098
0.108
E
0.45
0.70
0.017
0.027
F
0.75
1
0.030
0.039
F1
1.15
1.50
0.045
0.059
F2
1.15
1.50
0.045
0.059
G
4.95
5.2
0.194
0.204
G1
2.4
2.7
0.094
0.106
H
10.0
10.40
0.393
0.409
L2
16
0.630
L3
28.6
30.6
1.126
1.204
L4
9.8
10.6
0.385
0.417
L6
15.9
16.4
0.626
0.645
L7
9
9.3
0.354
0.366
DIA.
3
3.2
0.118
0.126
TO-220FP MECHANICAL DATA
L2
A
B
D
E
H
G
L6
F
L3
G1
1 2 3
F2
F1
L7
L4
7012510/F
L7800 SERIES
27/29
DIM.
mm.
inch
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
A
4.4
4.6
0.173
0.181
A1
2.49
2.69
0.098
0.106
A2
0.03
0.23
0.001
0.009
B
0.7
0.93
0.027
0.036
B2
1.14
1.7
0.044
0.067
C
0.45
0.6
0.017
0.023
C2
1.23
1.36
0.048
0.053
D
8.95
9.35
0.352
0.368
D1
8
0.315
E
10
10.4
0.393
0.409
E1
8.5
0.335
G
4.88
5.28
0.192
0.208
L
15
15.85
0.590
0.624
L2
1.27
1.4
0.050
0.055
L3
1.4
1.75
0.055
0.068
M
2.4
3.2
0.094
0.126
R
0.4
0.016
V2
0
8
0
8
D
2
PAK MECHANICAL DATA
P011P6G
L7800 SERIES
28/29
DIM.
mm.
inch
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
A
180
7.086
C
12.8
13.0
13.2
0.504
0.512
0.519
D
20.2
0.795
N
60
2.362
T
14.4
0.567
Ao
10.50
10.6
10.70
0.413
0.417
0.421
Bo
15.70
15.80
15.90
0.618
0.622
0.626
Ko
4.80
4.90
5.00
0.189
0.193
0.197
Po
3.9
4.0
4.1
0.153
0.157
0.161
P
11.9
12.0
12.1
0.468
0.472
0.476
Tape & Reel D
2
PAK-P
2
PAK-D
2
PAK/A-P
2
PAK/A MECHANICAL DATA
L7800 SERIES
29/29
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
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