ETC L7800_SERIES

L7800
SERIES
POSITIVE VOLTAGE REGULATORS
..
..
.
OUTPUT CURRENT UP TO 1.5A
OUTPUT VOLTAGES OF 5; 5.2; 6; 8; 8.5; 9; 12;
15; 18; 20; 24V
THERMAL OVERLOAD PROTECTION
SHORT CIRCUIT PROTECTION
OUTPUT TRANSISTOR SOA PROTECTION
DESCRIPTION
The L7800 series of three-terminal positive regulator is available in TO-220, ISOWATT220 and TO-3
packages and with 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
voltages and currents.
TO-3
TO-220
ISOWATT220
BLOCK DIAGRAM
January 1993
1/24
L7800 SERIES
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Vi
DC Input Voltage (for V o = 5 to 18V)
(for V o = 20, 24V)
Io
Value
Unit
35
40
V
V
Output Current
Internally limited
Pt o t
Power Dissipation
Internally limited
To p
Operating Junction Temperature (for L7800 )
(for L7800C )
– 55 to + 150
0 to + 150
°C
°C
T stg
Storage Temperature
– 65 to + 150
°C
THERMAL DATA
Symbol
Parameter
Rthj-case Thermal Resistance Junction-case
Rthj-amb Thermal Resistance Junction-ambient
Max
Max
TO-220
ISOWATT220
TO-3
3
50
4
60
4
35
Unit
o
C/W
C/W
o
CONNECTION DIAGRAM AND ORDERING NUMBERS (top view)
TO-220 & ISOWATT220
Type
L7805
L7805C
L7852C
L7806
L7806C
L7808
L7808C
L7885C
L7809C
L7812
L7812C
L7815
L7815C
L7818
L7818C
L7820
L7820C
L7824
L7824C
2/24
TO-220
TO-3
ISOWATT220
L7805CV
L7852CV
L7805CP
L7852CP
L7806CV
L7806CP
L7808CV
L7885CV
L7809CV
L7808CP
L7885CP
L7809CP
L7812CV
L7812CP
L7815CV
L7815CP
L7818CV
L7818CP
L7820CV
L7820CP
L7824CV
L7824CP
TO-3
Output Voltage
L7805T
L7805CT
L7852CT
L7806T
L7806CT
L7808T
L7808CT
L7885CT
L7809CT
L7812T
L7812CT
L7815T
L7815CT
L7818T
L7818CT
L7820T
L7820CT
L7824T
L7824CT
5V
5V
5.2V
6V
6V
8V
8V
8.5V
9V
12V
12V
15V
15V
18V
18V
20V
20V
24V
24V
L7800 SERIES
APPLICATION CIRCUIT
SCHEMATIC DIAGRAM
3/24
L7800 SERIES
TEST CIRCUITS
Figure 1 : DC Parameters.
Figure 3 : Ripple Rejection.
4/24
Figure 2 : Load Regulation.
L7800 SERIES
ELECTRICAL CHARACTERISTICS FOR L7805 (refer to the test circuits, T j = -55 to 150 o C,
V i = 10V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Vo
Output Voltage
Tj = 25 oC
Vo
Output Voltage
Io = 5 mA to 1 A
Vi = 8 to 20 V
∆Vo*
Line Regulation
Vi = 7 to 25 V
Vi = 8 to 12 V
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
Id
Quiescent Current
Tj = 25 oC
P o ≤ 15 W
Min.
Typ.
Max.
Unit
4.8
5
5.2
V
4.65
5
5.35
V
3
1
50
25
mV
mV
100
25
mV
mV
6
mA
Tj = 25 oC
Tj = 25 oC
Tj = 25 oC
Tj = 25 oC
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
0.5
mA
∆Id
Quiescent Current Change
Vi = 8 to 25 V
0.8
mA
∆V o
∆T
Output Voltage Drift
Io = 5 mA
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
Supply Voltage Rejection
Vi = 8 to 18 V
SVR
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
mV/oC
0.6
f = 120 Hz
40
68
o
Tj = 25 C
dB
2
2.5
17
Tj = 25 oC
o
Tj = 25 C
1.3
µV/VO
V
mΩ
0.75
1.2
A
2.2
3.3
A
ELECTRICAL CHARACTERISTICS FOR L7806 (refer to the test circuits, T j = -55 to 150 o C,
V i = 15V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
5.75
6
6.25
V
5.65
6
6.35
V
60
30
mV
mV
100
30
mV
mV
6
mA
0.5
mA
Vo
Output Voltage
Tj = 25 oC
Vo
Output Voltage
Io = 5 mA to 1 A
Vi = 9 to 21 V
∆Vo*
Line Regulation
Vi = 8 to 25 V
Vi = 9 to 13 V
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
Id
Quiescent Current
Tj = 25 oC
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
∆Id
Quiescent Current Change
Vi = 9 to 25 V
0.8
mA
∆V o
∆T
Output Voltage Drift
Io = 5 mA
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
Supply Voltage Rejection
Vi = 9 to 19 V
SVR
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
o
Tj = 25 C
P o ≤ 15 W
Tj = 25 oC
Tj = 25 oC
Tj = 25 oC
Tj = 25 oC
mV/oC
0.7
f = 120 Hz
40
65
o
Tj = 25 C
dB
2
2.5
19
Tj = 25 oC
1.3
µV/VO
V
mΩ
0.75
1.2
A
2.2
3.3
A
* Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken
into account separately. Pulce testing with low duty cycle is used.
5/24
L7800 SERIES
ELECTRICAL CHARACTERISTICS FOR L7808 (refer to the test circuits, T j = -55 to 150 o C,
V i = 14V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Min.
Typ.
Max.
Unit
Vo
Output Voltage
Parameter
Tj = 25 oC
Test Conditions
7.7
8
8.3
V
Vo
Output Voltage
Io = 5 mA to 1 A P o ≤ 15 W
Vi = 11.5 to 23 V
7.6
8
8.4
V
∆Vo*
Line Regulation
Vi = 10.5 to 25 V Tj = 25 oC
Vi = 11 to 17 V Tj = 25 oC
80
40
mV
mV
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
100
40
mV
mV
Id
Quiescent Current
Tj = 25 oC
6
mA
Tj = 25 oC
Tj = 25 oC
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
0.5
mA
∆Id
Quiescent Current Change
Vi = 11.5 to 25 V
0.8
mA
∆V o
∆T
Output Voltage Drift
Io = 5 mA
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
Supply Voltage Rejection
Vi = 11.5 to 21.5 V
SVR
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
mV/oC
1
f = 120 Hz
40
62
o
Tj = 25 C
dB
2
2.5
16
Tj = 25 oC
o
Tj = 25 C
1.3
µV/VO
V
mΩ
0.75
1.2
A
2.2
3.3
A
ELECTRICAL CHARACTERISTICS FOR L7812 (refer to the test circuits, T j = -55 to 150 o C,
V i = 19V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Min.
Typ.
Max.
Unit
Vo
Output Voltage
Tj = 25 oC
11.5
12
12.5
V
Vo
Output Voltage
Io = 5 mA to 1 A P o ≤ 15 W
Vi = 15.5 to 27 V
11.4
12
12.6
V
∆Vo*
Line Regulation
Vi = 14.5 to 30 V Tj = 25 oC
Vi = 16 to 22 V Tj = 25 oC
120
60
mV
mV
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
100
60
mV
mV
Id
Quiescent Current
Tj = 25 oC
6
mA
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
0.5
mA
∆Id
Quiescent Current Change
Vi = 15 to 30 V
0.8
mA
∆V o
∆T
Output Voltage Drift
Io = 5 mA
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
Supply Voltage Rejection
Vi = 15 to 25 V
SVR
Parameter
Test Conditions
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
o
Tj = 25 C
Tj = 25 oC
Tj = 25 oC
mV/oC
1.5
f = 120 Hz
40
61
o
Tj = 25 C
dB
2
2.5
18
Tj = 25 oC
1.3
µV/VO
V
mΩ
0.75
1.2
A
2.2
3.3
A
* Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken
into account separately. Pulce testing with low duty cycle is used.
6/24
L7800 SERIES
ELECTRICAL CHARACTERISTICS FOR L7815 (refer to the test circuits, T j = -55 to 150 o C,
V i = 23V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Min.
Typ.
Max.
Unit
Vo
Output Voltage
Parameter
Tj = 25 oC
Test Conditions
14.4
15
15.6
V
Vo
Output Voltage
Io = 5 mA to 1 A P o ≤ 15 W
Vi = 18.5 to 30 V
14.25
15
15.75
V
∆Vo*
Line Regulation
Vi = 17.5 to 30 V Tj = 25 oC
Vi = 20 to 26 V Tj = 25 oC
150
75
mV
mV
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
150
75
mV
mV
Id
Quiescent Current
Tj = 25 oC
6
mA
Tj = 25 oC
Tj = 25 oC
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
0.5
mA
∆Id
Quiescent Current Change
Vi = 18.5 to 30 V
0.8
mA
∆V o
∆T
Output Voltage Drift
Io = 5 mA
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
Supply Voltage Rejection
Vi = 18.5 to 28.5 V
SVR
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
mV/oC
1.8
f = 120 Hz
40
60
o
Tj = 25 C
dB
2
2.5
19
Tj = 25 oC
o
Tj = 25 C
1.3
µV/VO
V
mΩ
0.75
1.2
A
2.2
3.3
A
ELECTRICAL CHARACTERISTICS FOR L7818 (refer to the test circuits, T j = -55 to 150 o C,
V i = 26V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
17.3
18
18.7
V
17.1
18
18.9
V
180
90
mV
mV
180
90
mV
mV
6
mA
0.5
mA
Vo
Output Voltage
Tj = 25 oC
Vo
Output Voltage
Io = 5 mA to 1 A
Vi = 22 to 33 V
∆Vo*
Line Regulation
Vi = 21 to 33 V
Vi = 24 to 30 V
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
Id
Quiescent Current
Tj = 25 oC
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
∆Id
Quiescent Current Change
Vi = 22 to 33 V
0.8
mA
∆V o
∆T
Output Voltage Drift
Io = 5 mA
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
Supply Voltage Rejection
Vi = 22 to 32 V
SVR
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
o
Tj = 25 C
P o ≤ 15 W
Tj = 25 oC
Tj = 25 oC
Tj = 25 oC
Tj = 25 oC
mV/oC
2.3
f = 120 Hz
40
59
o
Tj = 25 C
dB
2
2.5
22
Tj = 25 oC
1.3
µV/VO
V
mΩ
0.75
1.2
A
2.2
3.3
A
* Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken
into account separately. Pulce testing with low duty cycle is used.
7/24
L7800 SERIES
ELECTRICAL CHARACTERISTICS FOR L7820 (refer to the test circuits, T j = -55 to 150 o C,
V i = 28V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Vo
Output Voltage
Tj = 25 oC
Vo
Output Voltage
Io = 5 mA to 1 A
Vi = 24 to 35 V
∆Vo*
Line Regulation
Vi = 22.5 to 35 V Tj = 25 oC
Vi = 26 to 32 V Tj = 25 oC
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
Id
Quiescent Current
Tj = 25 oC
P o ≤ 15 W
Min.
Typ.
Max.
Unit
19.2
20
20.8
V
19
20
21
V
200
100
mV
mV
200
100
mV
mV
6
mA
Tj = 25 oC
Tj = 25 oC
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
0.5
mA
∆Id
Quiescent Current Change
Vi = 24 to 35 V
0.8
mA
∆V o
∆T
Output Voltage Drift
Io = 5 mA
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
Supply Voltage Rejection
Vi = 24 to 35 V
SVR
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
mV/oC
2.5
f = 120 Hz
40
58
o
Tj = 25 C
dB
2
2.5
24
Tj = 25 oC
o
Tj = 25 C
1.3
µV/VO
V
mΩ
0.75
1.2
A
2.2
3.3
A
ELECTRICAL CHARACTERISTICS FOR L7824 (refer to the test circuits, T j = -55 to 150 o C,
V i = 33V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
23
24
25
V
22.8
24
25.2
V
240
120
mV
mV
240
120
mV
mV
6
mA
0.5
mA
Vo
Output Voltage
Tj = 25 oC
Vo
Output Voltage
Io = 5 mA to 1 A
Vi = 28 to 38 V
∆Vo*
Line Regulation
Vi = 27 to 38 V
Vi = 30 to 36 V
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
Id
Quiescent Current
Tj = 25 oC
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
∆Id
Quiescent Current Change
Vi = 28 to 38 V
0.8
mA
∆V o
∆T
Output Voltage Drift
Io = 5 mA
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
Supply Voltage Rejection
Vi = 28 to 38 V
SVR
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
o
Tj = 25 C
P o ≤ 15 W
Tj = 25 oC
Tj = 25 oC
Tj = 25 oC
Tj = 25 oC
mV/oC
3
f = 120 Hz
40
56
o
Tj = 25 C
dB
2
2.5
28
Tj = 25 oC
1.3
µV/VO
V
mΩ
0.75
1.2
A
2.2
3.3
A
* Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken
into account separately. Pulce testing with low duty cycle is used.
8/24
L7800 SERIES
ELECTRICAL CHARACTERISTICS FOR L7805C (refer to the test circuits, Tj = 0 to 125 oC,
V i = 10V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Vo
Output Voltage
Tj = 25 oC
Vo
Output Voltage
Io = 5 mA to 1 A
Vi = 7 to 20 V
∆Vo*
Line Regulation
Vi = 7 to 25 V
Vi = 8 to 12 V
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
Id
Quiescent Current
Tj = 25 oC
P o ≤ 15 W
Min.
Typ.
Max.
Unit
4.8
5
5.2
V
4.75
5
5.25
V
3
1
100
50
mV
mV
100
50
mV
mV
8
mA
Tj = 25 oC
Tj = 25 oC
Tj = 25 oC
Tj = 25 oC
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
0.5
mA
∆Id
Quiescent Current Change
Vi = 7 to 25 V
0.8
mA
∆V o
∆T
Output Voltage Drift
Io = 5 mA
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
Supply Voltage Rejection
Vi = 8 to 18 V
SVR
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
f = 120 Hz
-1.1
mV/oC
40
µV
62
o
Tj = 25 C
Tj = 25 oC
o
Tj = 25 C
dB
2
V
17
mΩ
750
mA
2.2
A
ELECTRICAL CHARACTERISTICS FOR L7852C (refer to the test circuits, Tj = 0 to 125 oC,
V i = 10V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
5.0
5.2
5.4
V
4.95
5.2
5.45
V
3
1
105
52
mV
mV
105
52
mV
mV
8
mA
0.5
mA
Vo
Output Voltage
Tj = 25 oC
Vo
Output Voltage
Io = 5 mA to 1 A
Vi = 8 to 20 V
∆Vo*
Line Regulation
Vi = 7 to 25 V
Vi = 8 to 12 V
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
Id
Quiescent Current
Tj = 25 oC
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
∆Id
Quiescent Current Change
Vi = 7 to 25 V
1.3
mA
∆V o
∆T
Output Voltage Drift
Io = 5 mA
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
Supply Voltage Rejection
Vi = 8 to 18 V
SVR
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
o
Tj = 25 C
P o ≤ 15 W
Tj = 25 oC
Tj = 25 oC
Tj = 25 oC
Tj = 25 oC
f = 120 Hz
o
Tj = 25 C
Tj = 25 oC
-1.0
mV/oC
42
µV
61
dB
2
V
17
mΩ
750
mA
2.2
A
* Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken
into account separately. Pulce testing with low duty cycle is used.
9/24
L7800 SERIES
ELECTRICAL CHARACTERISTICS FOR L7806C (refer to the test circuits, Tj = 0 to 125 oC,
V i = 11V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Vo
Output Voltage
Tj = 25 oC
Vo
Output Voltage
Io = 5 mA to 1 A
Vi = 8 to 21 V
∆Vo*
Line Regulation
Vi = 8 to 25 V
Vi = 9 to 13 V
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
Id
Quiescent Current
Tj = 25 oC
P o ≤ 15 W
Min.
Typ.
Max.
Unit
5.75
6
6.25
V
5.7
6
6.3
V
120
60
mV
mV
120
60
mV
mV
8
mA
Tj = 25 oC
Tj = 25 oC
Tj = 25 oC
Tj = 25 oC
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
0.5
mA
∆Id
Quiescent Current Change
Vi = 8 to 25 V
1.3
mA
∆V o
∆T
Output Voltage Drift
Io = 5 mA
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
Supply Voltage Rejection
Vi = 9 to 19 V
SVR
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
f = 120 Hz
-0.8
mV/oC
45
µV
59
o
Tj = 25 C
Tj = 25 oC
o
Tj = 25 C
dB
2
V
19
mΩ
550
mA
2.2
A
ELECTRICAL CHARACTERISTICS FOR L7808C (refer to the test circuits, Tj = 0 to 125 oC,
V i = 14V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Min.
Typ.
Max.
Unit
Vo
Output Voltage
Tj = 25 oC
7.7
8
8.3
V
Vo
Output Voltage
Io = 5 mA to 1 A P o ≤ 15 W
Vi = 10.5 to 25 V
7.6
8
8.4
V
∆Vo*
Line Regulation
Vi = 10.5 to 25 V Tj = 25 oC
Vi = 11 to 17 V Tj = 25 oC
160
80
mV
mV
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
160
80
mV
mV
Id
Quiescent Current
Tj = 25 oC
8
mA
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
0.5
mA
∆Id
Quiescent Current Change
Vi = 10.5 to 25 V
1
mA
∆V o
∆T
Output Voltage Drift
Io = 5 mA
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
Supply Voltage Rejection
Vi = 11.5 to 21.5 V
SVR
Parameter
Test Conditions
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
o
Tj = 25 C
Tj = 25 oC
Tj = 25 oC
f = 120 Hz
o
Tj = 25 C
Tj = 25 oC
-0.8
mV/oC
52
µV
56
dB
2
V
16
mΩ
450
mA
2.2
A
* Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken
into account separately. Pulce testing with low duty cycle is used.
10/24
L7800 SERIES
ELECTRICAL CHARACTERISTICS FOR L7885C (refer to the test circuits, Tj = 0 to 125 oC,
V i = 14.5V, I o = 500 mA, C i = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
8.2
8.5
8.8
V
8.1
8.5
8.9
V
Vi = 11 to 27 V Tj = 25 oC
Vi = 11.5 to 17.5 V Tj = 25 oC
160
80
mV
mV
Tj = 25 oC
Tj = 25 oC
160
80
mV
mV
8
mA
Vo
Output Voltage
Tj = 25 oC
Vo
Output Voltage
Io = 5 mA to 1 A
Vi = 11 to 26 V
∆Vo*
Line Regulation
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
Id
Quiescent Current
Tj = 25 oC
P o ≤ 15 W
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
∆Id
Quiescent Current Change
Vi = 11 to 27 V
∆V o
∆T
Output Voltage Drift
Io = 5 mA
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
Supply Voltage Rejection
Vi = 12 to 22 V
SVR
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
f = 120 Hz
0.5
mA
1
mA
-0.8
mV/oC
55
µV
56
o
Tj = 25 C
Tj = 25 oC
o
Tj = 25 C
dB
2
V
16
mΩ
450
mA
2.2
A
ELECTRICAL CHARACTERISTICS FOR L7809C (refer to the test circuits, Tj = 0 to 125 oC,
V i = 15V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Min.
Typ.
Max.
Unit
Vo
Output Voltage
Tj = 25 oC
8.65
9
9.35
V
Vo
Output Voltage
Io = 5 mA to 1 A P o ≤ 15 W
Vi = 11.5 to 26 V
8.55
9
9.45
V
∆Vo*
Line Regulation
Vi = 11.5 to 26 V Tj = 25 oC
Vi = 12 to 18 V Tj = 25 oC
180
90
mV
mV
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
180
90
mV
mV
Id
Quiescent Current
Tj = 25 oC
8
mA
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
0.5
mA
∆Id
Quiescent Current Change
Vi = 11.5 to 26 V
1
mA
∆V o
∆T
Output Voltage Drift
Io = 5 mA
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
Supply Voltage Rejection
Vi = 12 to 23 V
SVR
Parameter
Test Conditions
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
o
Tj = 25 C
Tj = 25 oC
Tj = 25 oC
f = 120 Hz
o
Tj = 25 C
Tj = 25 oC
-1.0
mV/oC
70
µV
55
dB
2
V
17
mΩ
400
mA
2.2
A
* Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken
into account separately. Pulce testing with low duty cycle is used.
11/24
L7800 SERIES
ELECTRICAL CHARACTERISTICS FOR L7812C (refer to the test circuits, Tj = 0 to 125 oC,
V i = 19V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Min.
Typ.
Max.
Unit
Vo
Output Voltage
Parameter
Tj = 25 oC
Test Conditions
11.5
12
12.5
V
Vo
Output Voltage
Io = 5 mA to 1 A P o ≤ 15 W
Vi = 14.5 to 27 V
11.4
12
12.6
V
∆Vo*
Line Regulation
Vi = 14.5 to 30 V Tj = 25 oC
Vi = 16 to 22 V Tj = 25 oC
240
120
mV
mV
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
240
120
mV
mV
Id
Quiescent Current
Tj = 25 oC
8
mA
Tj = 25 oC
Tj = 25 oC
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
0.5
mA
∆Id
Quiescent Current Change
Vi = 14.5 to 30 V
1
mA
∆V o
∆T
Output Voltage Drift
Io = 5 mA
-1
mV/oC
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
75
µV
Supply Voltage Rejection
Vi = 15 to 25 V
SVR
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
f = 120 Hz
55
o
Tj = 25 C
Tj = 25 oC
o
Tj = 25 C
dB
2
V
18
mΩ
350
mA
2.2
A
ELECTRICAL CHARACTERISTICS FOR L7815C (refer to the test circuits, Tj = 0 to 125 oC,
V i = 23V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Min.
Typ.
Max.
Unit
Vo
Output Voltage
Tj = 25 oC
14.4
15
15.6
V
Vo
Output Voltage
Io = 5 mA to 1 A P o ≤ 15 W
Vi = 17.5 to 30 V
14.25
15
15.75
V
∆Vo*
Line Regulation
Vi = 17.5 to 30 V Tj = 25 oC
Vi = 20 to 26 V Tj = 25 oC
300
150
mV
mV
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
300
150
mV
mV
Id
Quiescent Current
Tj = 25 oC
8
mA
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
0.5
mA
∆Id
Quiescent Current Change
Vi = 17.5 to 30 V
1
mA
∆V o
∆T
Output Voltage Drift
Io = 5 mA
-1
mV/oC
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
90
µV
Supply Voltage Rejection
Vi = 18.5 to 28.5 V
SVR
Parameter
Test Conditions
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
o
Tj = 25 C
Tj = 25 oC
Tj = 25 oC
f = 120 Hz
o
Tj = 25 C
Tj = 25 oC
54
dB
2
V
19
mΩ
230
mA
2.1
A
* Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken
into account separately. Pulce testing with low duty cycle is used.
12/24
L7800 SERIES
ELECTRICAL CHARACTERISTICS FOR L7818C (refer to the test circuits, Tj = 0 to 125 oC,
V i = 26V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Vo
Output Voltage
Tj = 25 oC
Vo
Output Voltage
Io = 5 mA to 1 A
Vi = 21 to 33 V
∆Vo*
Line Regulation
Vi = 21 to 33 V
Vi = 24 to 30 V
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
Id
Quiescent Current
Tj = 25 oC
P o ≤ 15 W
Quiescent Current Change
Io = 5 to 1000 mA
Quiescent Current Change
Vi = 21 to 33 V
∆V o
∆T
Output Voltage Drift
Io = 5 mA
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
Supply Voltage Rejection
Vi = 22 to 32 V
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
Max.
Unit
18
18.7
V
17.1
18
18.9
V
360
180
mV
mV
360
180
mV
mV
8
mA
Tj = 25 oC
Tj = 25 oC
∆Id
Vd
Typ.
17.3
Tj = 25 oC
Tj = 25 oC
∆Id
SVR
Min.
f = 120 Hz
0.5
mA
1
mA
-1
mV/oC
110
µV
53
o
Tj = 25 C
Tj = 25 oC
o
Tj = 25 C
dB
2
V
22
mΩ
200
mA
2.1
A
ELECTRICAL CHARACTERISTICS FOR L7820C (refer to the test circuits, Tj = 0 to 125 oC,
V i = 28V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Vo
Output Voltage
Tj = 25 oC
Vo
Output Voltage
Io = 5 mA to 1 A
Vi = 23 to 35 V
∆Vo*
Line Regulation
Vi = 22.5 to 35 V Tj = 25 oC
Vi = 26 to 32 V Tj = 25 oC
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
Id
Quiescent Current
Tj = 25 oC
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
∆Id
Quiescent Current Change
Vi = 23 to 35 V
∆V o
∆T
Output Voltage Drift
Io = 5 mA
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
Supply Voltage Rejection
Vi = 24 to 35 V
SVR
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
o
Tj = 25 C
P o ≤ 15 W
Min.
Typ.
Max.
Unit
19.2
20
20.8
V
19
20
21
V
400
200
mV
mV
400
200
mV
mV
Tj = 25 oC
Tj = 25 oC
f = 120 Hz
o
Tj = 25 C
Tj = 25 oC
8
mA
0.5
mA
1
mA
-1
mV/oC
150
µV
52
dB
2
V
24
mΩ
180
mA
2.1
A
* Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken
into account separately. Pulce testing with low duty cycle is used.
13/24
L7800 SERIES
ELECTRICAL CHARACTERISTICS FOR L7824C (refer to the test circuits, Tj = 0 to 125 oC,
V i = 33V, Io = 500 mA, Ci = 0.33 µF, C o = 0.1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Vo
Output Voltage
Tj = 25 oC
Vo
Output Voltage
Io = 5 mA to 1 A
Vi = 27 to 38 V
∆Vo*
Line Regulation
Vi = 27 to 38 V
Vi = 30 to 36 V
∆Vo*
Load Regulation
Io = 5 to 1500 mA
Io = 250 to 750 mA
Id
Quiescent Current
Tj = 25 oC
P o ≤ 15 W
Min.
Typ.
Max.
Unit
23
24
25
V
22.8
24
25.2
V
480
240
mV
mV
480
240
mV
mV
8
mA
Tj = 25 oC
Tj = 25 oC
Tj = 25 oC
Tj = 25 oC
∆Id
Quiescent Current Change
Io = 5 to 1000 mA
∆Id
Quiescent Current Change
Vi = 27 to 38 V
∆V o
∆T
Output Voltage Drift
Io = 5 mA
-1.5
mV/oC
eN
Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
170
µV
Supply Voltage Rejection
Vi = 28 to 38 V
SVR
Vd
Dropout Voltage
Io = 1 A
Ro
Output Resistance
f = 1 KHz
Isc
Short Circuit Current
Vi = 35 V
Iscp
Short Circuit Peak Current
o
Tj = 25 C
f = 120 Hz
o
Tj = 25 C
Tj = 25 oC
50
0.5
mA
1
mA
dB
2
V
28
mΩ
150
mA
2.1
A
* Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken
into account separately. Pulce testing with low duty cycle is used.
14/24
L7800 SERIES
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.
15/24
L7800 SERIES
Figure 10 : Load Transient Response.
Figure 11 : Line Transient Response.
Figure 12 : Quiescent Current vs. Input Voltage.
Figure 13 : Fixed Output Regulator.
Figure 14 : Current Regulator.
IO =
Notes : 1.
2.
3.
16/24
To specify an output voltage, substitute voltage
value for ”XX”.
Although no output capacitor is needed for stabili ty, it does improve transient response.
Required if regulator is located an appreciable
dis-tance from power supply filter.
VXX
R1
+ Id
L7800 SERIES
Figure 15 : Circuit for Increasing Output Voltage.
Figure 16 : Adjustable Output Regulator
(7 to 30V).
IR1 ≥ 5 Id
VO = VXX (1 +
R2
R1
) + Id R2
Figure 17 : 0.5 to 10V Regulator.
Figure 18 : High Current Voltage Regulator.
R1 =
IREQ –
VO = VXX
R4
R1
VBEQ1
IQ1
βQ1
IO = IREG + Q1 [IREG –
VBEQ1
R1
]
17/24
L7800 SERIES
Figure 19 : High Output Current with Short Circuit
Protection.
RSC =
Figure 20 : Tracking Voltage Regulator.
VBEQ2
ISC
Figure 21 : Split Power Supply (± 15V – 1A).
Figure 22 : Negative Output Voltage Circuit.
* Against potential latch-up problems.
Figure 23 : Switching Regulator.
Figure 24 : High Input Voltage Circuit.
VIN = Vi – (VZ + VBE)
18/24
L7800 SERIES
Figure 25 : High Input Voltage Circuit.
Figure 26 : High Output Voltage Regulator.
Figure 27 : High Input and Output Voltage.
Figure 28 : Reducing Power Dissipation with
Dropping Resistor.
VO = VXX + VZ1
R=
Vi(min) – VXX – VDROP(max)
IO(max) + Id(max)
Figure 29 : Remote Shutdown.
19/24
L7800 SERIES
Figure 30 : Power AM Modulator (unity voltage
gain, Io ≤ 1A).
Figure 31 : Adjustable Output Voltage with Temperature Compensation.
VO = VXX (1 +
Note : The circuit performs well up to 100KHz.
R2
) + VBE
R1
Note : Q2 is connected as a diode in order to compensate
the variation of the Q 1 VBE with the temperature. C allows a
slow rise-time of the VO
Figure 32 : Light Controllers (Vo min = Vxx + VBE).
VO falls when the light goes up
VO rises when the light goes up
Figure 33 : Protection against Input Short-circuit
with High Capacitance Loads.
Applications 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 decreases showly. 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 tran-sistor
20/24
L7800 SERIES
TO-3 MECHANICAL DATA
mm
DIM.
MIN.
inch
TYP.
MAX.
MIN.
TYP.
MAX.
A
11.00
13.10
0.433
0.516
B
0.97
1.15
0.038
0.045
C
1.50
1.65
0.059
0.065
D
8.32
8.92
0.327
0.351
E
19.00
20.00
0.748
0.787
G
10.70
11.10
0.421
0.437
N
16.50
17.20
0.649
0.677
P
25.00
26.00
0.984
1.023
R
4.00
4.09
0.157
0.161
U
38.50
39.30
1.515
1.547
V
30.00
30.30
1.187
1.193
A
P
C
O
N
B
V
E
G
U
D
R
P003F
21/24
L7800 SERIES
TO-220 MECHANICAL DATA
mm
DIM.
MIN.
inch
MAX.
MIN.
A
4.40
TYP.
4.60
0.173
0.181
C
1.23
1.32
0.048
0.051
D
2.40
2.72
0.094
D1
TYP.
MAX.
0.107
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
L2
0.409
16.4
0.645
13.0
14.0
0.511
0.551
L5
2.65
2.95
0.104
0.116
L6
15.2
15.9
0.598
0.625
L7
6.2
6.6
0.244
0.260
L9
3.5
4.2
0.137
0.165
DIA.
3.75
3.85
0.147
0.151
D1
C
D
A
E
L4
H2
G
G1
F1
L2
F2
F
Dia.
L5
L9
L7
L6
L4
P011C
22/24
L7800 SERIES
ISOWATT220 MECHANICAL DATA
mm
DIM.
MIN.
inch
TYP.
MAX.
MIN.
TYP.
MAX.
A
4.4
4.6
0.173
0.181
B
2.5
2.7
0.098
0.106
D
2.5
2.75
0.098
0.108
E
0.4
0.7
0.015
0.027
F
0.75
1
0.030
0.039
F1
1.15
1.7
0.045
0.067
F2
1.15
1.7
0.045
0.067
G
4.95
5.2
0.195
0.204
G1
2.4
2.7
0.094
0.106
H
10
10.4
0.393
0.409
L2
16
0.630
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
3.66
Ø
3
3.2
0.118
0.126
B
D
A
E
L3
L3
L6
F
F1
L7
F2
H
G
G1
Ø
1 2 3
L2
L4
P011G
23/24
L7800 SERIES
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use ascritical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectonics.
 1994 SGS-THOMSON Microelectronics - All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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24/24