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L78 Datasheet

STMicroelectronics

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Datasheet

November 2016
DocID2143 Rev 34
1/54
This is information on a product in full production.
www.st.com
L78
Positive voltage regulator ICs
Datasheet - production data
Features
Output current up to 1.5 A
Output voltages of 5; 6; 8; 8.5; 9; 12; 15; 18;
24 V
Thermal overload protection
Short circuit protection
Output transition SOA protection
2 % output voltage tolerance (A version)
Guaranteed in extended temperature range
(A version)
Description
The L78 series of three-terminal positive
regulators is available in TO-220, TO-220FP,
D²PAK and DPAK 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
embeds internal current limiting, thermal shut-
down and safe area protection, making it
essentially indestructible. If adequate heat
sinking is provided, they can deliver over 1 A
output current. Although designed primarily as
fixed voltage regulators, these devices can be
used with external components to obtain
adjustable voltage and currents.
L78
2/54
DocID2143 Rev 34
Contents
1 Diagram ............................................................................................ 3
2 Pin configuration ............................................................................. 4
3 Maximum ratings ............................................................................. 5
4 Test circuits ..................................................................................... 6
5 Electrical characteristics ................................................................ 7
6 Application information ................................................................ 23
6.1 Design consideration ....................................................................... 23
7 Typical performance ..................................................................... 31
8 Package information ..................................................................... 33
8.1 TO-220 (dual gauge) package information ...................................... 34
8.2 TO-220 (single gauge) package information ................................... 36
8.3 TO-220FP package information ...................................................... 38
8.4 TO-220 packing information ............................................................ 40
8.5 DPAK package information ............................................................. 41
8.6 D²PAK (SMD 2L STD-ST) type A package information ................... 44
8.7 D²PAK (SMD 2L Wooseok-subcon.) package information .............. 46
8.8 D²PAK and DPAK packing information ........................................... 49
9 Ordering information ..................................................................... 52
10 Revision history ............................................................................ 53
L78
Diagram
DocID2143 Rev 34
3/54
1 Diagram
Figure 1: Block diagram
Pin configuration
L78
4/54
DocID2143 Rev 34
2 Pin configuration
Figure 2: Pin connections (top view)
Figure 3: Schematic diagram
L78
Maximum ratings
DocID2143 Rev 34
5/54
3 Maximum ratings
Table 1: Absolute maximum ratings
Symbol
Parameter
Value
Unit
VI
DC input voltage
for VO= 5 to 18 V
35
V
for VO= 20, 24 V
40
IO
Output current
Internally limited
PD
Power dissipation
Internally limited
TSTG
Storage temperature range
-65 to 150
°C
TOP
Operating junction temperature range
for L78xxC, L78xxAC
0 to 125
°C
for L78xxAB
-40 to 125
Absolute maximum ratings are those values beyond which damage to the device
may occur. Functional operation under these condition is not implied.
Table 2: Thermal data
Symbol
Parameter
D²PAK
DPAK
TO-220
TO-220FP
Unit
RthJC
Thermal resistance junction-case
3
8
5
5
°C/W
RthJA
Thermal resistance junction-ambient
62.5
100
50
60
°C/W
Figure 4: Application circuits
Test circuits
L78
6/54
DocID2143 Rev 34
4 Test circuits
Figure 5: DC parameter
Figure 6: Load regulation
Figure 7: Ripple rejection
L78
Electrical characteristics
DocID2143 Rev 34
7/54
5 Electrical characteristics
VI = 10 V, IO = 1 A, TJ = 0 to 125 °C (L7805AC), TJ = -40 to 125 °C (L7805AB), unless
otherwise specified
a
Table 3: Electrical characteristics of L7805A
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
4.9
5
5.1
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 7.5 to 18 V
4.8
5
5.2
V
VO
Output voltage
IO = 1 A, VI = 18 to 20 V, TJ = 25 °C
4.8
5
5.2
V
∆VO (1)
Line regulation
VI = 7.5 to 25 V, IO = 500 mA, TJ = 25 °C
7
50
mV
VI = 8 to 12 V
10
50
mV
VI = 8 to 12 V, TJ = 25 °C
2
25
mV
VI = 7.3 to 20 V, TJ = 25 °C
7
50
mV
∆VO (1)
Load regulation
IO = 5 mA to 1 A
25
100
mV
IO = 5 mA to 1.5 A, TJ = 25 °C
30
100
IO = 250 to 750 mA
8
50
Iq
Quiescent current
TJ = 25 °C
4.3
6
mA
6
mA
∆Iq
Quiescent current change
VI = 8 to 23 V, IO = 500 mA
0.8
mA
VI = 7.5 to 20 V, TJ = 25 °C
0.8
mA
IO = 5 mA to 1 A
0.5
mA
SVR
Supply voltage rejection
VI = 8 to 18 V, f = 120 Hz, IO = 500 mA
68
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25 °C
2
V
eN
Output noise voltage
TA = 25 °C, B =10 Hz to 100 kHz
10
µV/VO
RO
Output resistance
f = 1 kHz
17
mΩ
Isc
Short circuit current
VI = 35 V, TA = 25 °C
0.2
A
Iscp
Short circuit peak current
TJ = 25 °C
2.2
A
∆VO/∆T
Output voltage drift
-1.1
mV/°C
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
a
Minimum load current for regulation is 5 mA.
Electrical characteristics
L78
8/54
DocID2143 Rev 34
VI = 11 V, IO = 1 A, TJ = 0 to 125 °C (L7806AC), TJ = -40 to 125 °C (L7806AB), unless
otherwise specified
a
Table 4: Electrical characteristics of L7806A
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
5.88
6
6.12
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 8.6 to 19 V
5.76
6
6.24
V
VO
Output voltage
IO = 1 A, VI = 19 to 21 V, TJ = 25 °C
5.76
6
6.24
V
∆VO (1)
Line regulation
VI = 8.6 to 25 V, IO = 500 mA, TJ = 25 °C
9
60
mV
VI = 9 to 13 V
11
60
mV
VI = 9 to 13 V, TJ = 25 °C
3
30
mV
VI = 8.3 to 21 V, TJ = 25 °C
9
60
mV
∆VO (1)
Load regulation
IO = 5 mA to 1 A
25
100
mV
IO = 5 mA to 1.5 A, TJ = 25 °C
30
100
IO = 250 to 750 mA
10
50
Iq
Quiescent current
TJ = 25° C
4.3
6
mA
6
mA
∆Iq
Quiescent current change
VI = 9 to 24 V, IO = 500 mA
0.8
mA
VI = 8.6 to 21 V, TJ = 25 °C
0.8
mA
IO = 5 mA to 1 A
0.5
mA
SVR
Supply voltage rejection
VI = 9 to 19 V, f = 120 Hz, IO = 500 mA
65
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25 °C
2
V
eN
Output noise voltage
TA = 25 °C, B =10 Hz to 100 kHz
10
µV/VO
RO
Output resistance
f = 1 kHz
17
mΩ
Isc
Short circuit current
VI = 35 V, TA = 25 °C
0.2
A
Iscp
Short circuit peak current
TJ = 25 °C
2.2
A
∆VO/∆T
Output voltage drift
-0.8
mV/°C
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
a
Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DocID2143 Rev 34
9/54
VI = 14 V, IO = 1 A, TJ = 0 to 125 °C (L7808AC), TJ = -40 to 125 °C (L7808AB), unless
otherwise specified
a
Table 5: Electrical characteristics of L7808A
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
7.84
8
8.16
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 10.6 to 21 V
7.7
8
8.3
V
VO
Output voltage
IO = 1 A, VI = 21 to 23 V, TJ = 25 °C
7.7
8
8.3
V
∆VO (1)
Line regulation
VI = 10.6 to 25 V, IO = 500 mA, TJ = 25 °C
12
80
mV
VI = 11 to 17 V
15
80
mV
VI = 11 to 17 V, TJ = 25 °C
5
40
mV
VI = 10.4 to 23 V, TJ = 25 °C
12
80
mV
∆VO (1)
Load regulation
IO = 5 mA to 1 A
25
100
mV
IO = 5 mA to 1.5 A, TJ = 25 °C
30
100
IO = 250 to 750 mA
10
50
Iq
Quiescent current
TJ = 25 °C
4.3
6
mA
6
mA
∆Iq
Quiescent current change
VI = 11 to 23 V, IO = 500 mA
0.8
mA
VI = 10.6 to 23 V, TJ = 25 °C
0.8
mA
IO = 5 mA to 1 A
0.5
mA
SVR
Supply voltage rejection
VI = 11.5 to 21.5 V, f = 120 Hz, IO = 500 mA
62
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25 °C
2
V
eN
Output noise voltage
TA = 25 °C, B =10 Hz to 100 kHz
10
µV/VO
RO
Output resistance
f = 1 kHz
18
mΩ
Isc
Short circuit current
VI = 35 V, TA = 25 °C
0.2
A
Iscp
Short circuit peak current
TJ = 25 °C
2.2
A
∆VO/∆T
Output voltage drift
-0.8
mV/°C
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
a
Minimum load current for regulation is 5 mA.
Electrical characteristics
L78
10/54
DocID2143 Rev 34
VI = 15 V, IO = 1 A, TJ = 0 to 125 °C (L7809AC), TJ = -40 to 125 °C (L7809AB), unless
otherwise specified
a
Table 6: Electrical characteristics of L7809A
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
8.82
9
9.18
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 10.6 to 22 V
8.65
9
9.35
V
VO
Output voltage
IO = 1 A, VI = 22 to 24 V, TJ = 25 °C
8.65
9
9.35
V
∆VO (1)
Line regulation
VI = 10.6 to 25 V, IO = 500 mA, TJ = 25 °C
12
90
mV
VI = 11 to 17 V
15
90
mV
VI = 11 to 17 V, TJ = 25 °C
5
45
mV
VI = 11.4 to 23 V, TJ = 25 °C
12
90
mV
∆VO (1)
Load regulation
IO = 5 mA to 1 A
25
100
mV
IO = 5 mA to 1.5 A, TJ = 25 °C
30
100
IO = 250 to 750 mA
10
50
Iq
Quiescent current
TJ = 25 °C
4.3
6
mA
6
mA
∆Iq
Quiescent current change
VI = 11 to 25 V, IO = 500 mA
0.8
mA
VI = 10.6 to 23 V, TJ = 25 °C
0.8
mA
IO = 5 mA to 1 A
0.5
mA
SVR
Supply voltage rejection
VI = 11.5 to 21.5 V, f = 120 Hz, IO = 500 mA
61
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25 °C
2
V
eN
Output noise voltage
TA = 25 °C, B =10 Hz to 100 kHz
10
µV/VO
RO
Output resistance
f = 1 kHz
18
mΩ
Isc
Short circuit current
VI = 35 V, TA = 25 °C
0.2
A
Iscp
Short circuit peak current
TJ = 25 °C
2.2
A
∆VO/∆T
Output voltage drift
-0.8
mV/°C
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
a
Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DocID2143 Rev 34
11/54
VI = 19 V, IO = 1 A, TJ = 0 to 125 °C (L7812AC), TJ = -40 to 125 °C (L7812AB), unless
otherwise specified
a
Table 7: Electrical characteristics of L7812A
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
11.75
12
12.25
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 14.8 to 25 V
11.5
12
12.5
V
VO
Output voltage
IO = 1 A, VI = 25 to 27 V, TJ = 25 °C
11.5
12
12.5
V
∆VO (1)
Line regulation
VI = 14.8 to 30 V, IO = 500 mA, TJ = 25 °C
13
120
mV
VI = 16 to 12 V
16
120
mV
VI = 16 to 12 V, TJ = 25 °C
6
60
mV
VI = 14.5 to 27 V, TJ = 25 °C
13
120
mV
∆VO (1)
Load regulation
IO = 5 mA to 1 A
25
100
mV
IO = 5 mA to 1.5 A, TJ = 25 °C
30
100
IO = 250 to 750 mA
10
50
Iq
Quiescent current
TJ = 25 °C
4.4
6
mA
6
mA
DIq
Quiescent current change
VI = 15 to 30 V, IO = 500 mA
0.8
mA
VI = 14.8 to 27 V, TJ = 25 °C
0.8
mA
IO = 5 mA to 1 A
0.5
mA
SVR
Supply voltage rejection
VI = 15 to 25 V, f = 120 Hz, IO = 500 mA
60
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25 °C
2
V
eN
Output noise voltage
TA = 25 °C, B = 10 Hz to 100 kHz
10
µV/VO
RO
Output resistance
f = 1 kHz
18
mΩ
Isc
Short circuit current
VI = 35 V, TA = 25 °C
0.2
A
Iscp
Short circuit peak current
TJ = 25 °C
2.2
A
∆VO/∆T
Output voltage drift
-1
mV/°C
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
a
Minimum load current for regulation is 5 mA.
Electrical characteristics
L78
12/54
DocID2143 Rev 34
VI = 23 V, IO = 1 A, TJ = 0 to 125 °C (L7815AC), TJ = -40 to 125 °C (L7815AB), unless
otherwise specified
a
Table 8: Electrical characteristics of L7815A
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
14.7
15
15.3
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 17.9 to 28 V
14.4
15
15.6
V
VO
Output voltage
IO = 1 A, VI = 28 to 30 V, TJ = 25 °C
14.4
15
15.6
V
∆VO (1)
Line regulation
VI = 17.9 to 30 V, IO = 500 mA, TJ = 25 °C
13
150
mV
VI = 20 to 26 V
16
150
mV
VI = 20 to 26 V, TJ = 25 °C
6
75
mV
VI = 17.5 to 30 V, TJ = 25 °C
13
150
mV
∆VO (1)
Load regulation
IO = 5 mA to 1 A
25
100
mV
IO = 5 mA to 1.5 A, TJ = 25 °C
30
100
IO = 250 to 750 mA
10
50
Iq
Quiescent current
TJ = 25 °C
4.4
6
mA
6
mA
∆Iq
Quiescent current change
VI = 17.5 to 30 V, IO = 500 mA
0.8
mA
VI = 17.5 to 30 V, TJ = 25 °C
0.8
mA
IO = 5 mA to 1 A
0.5
mA
SVR
Supply voltage rejection
VI = 18.5 to 28.5 V, f = 120 Hz, IO = 500 mA
58
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25 °C
2
V
eN
Output noise voltage
TA = 25 °C, B = 10Hz to 100 kHz
10
µV/VO
RO
Output resistance
f = 1 kHz
19
mΩ
Isc
Short circuit current
VI = 35 V, TA = 25 °C
0.2
A
Iscp
Short circuit peak current
TJ = 25 °C
2.2
A
∆VO/∆T
Output voltage drift
-1
mV/°C
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
a
Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DocID2143 Rev 34
13/54
VI = 33 V, IO = 1 A, TJ = 0 to 125 °C (L7824AC), TJ = -40 to 125 °C (L7824AB), unless
otherwise specified
a
Table 9: Electrical characteristics of L7824A
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
23.5
24
24.5
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 27.3 to 37 V
23
24
25
V
VO
Output voltage
IO = 1 A, VI = 37 to 38 V, TJ = 25 °C
23
24
25
V
∆VO (1)
Line regulation
VI = 27 to 38 V, IO = 500 mA, TJ = 25 °C
31
240
mV
VI = 30 to 36 V
35
200
mV
VI = 30 to 36 V, TJ = 25 °C
14
120
mV
VI = 26.7 to 38 V, TJ = 25 °C
31
240
mV
∆VO (1)
Load regulation
IO = 5 mA to 1 A
25
100
mV
IO = 5 mA to 1.5 A, TJ = 25 °C
30
100
IO = 250 to 750 mA
10
50
Iq
Quiescent current
TJ = 25 °C
4.6
6
mA
6
mA
∆Iq
Quiescent current change
VI = 27.3 to 38 V, IO = 500 mA
0.8
mA
VI = 27.3 to 38 V, TJ = 25 °C
0.8
mA
IO = 5 mA to 1 A
0.5
mA
SVR
Supply voltage rejection
VI = 28 to 38 V, f = 120 Hz, IO = 500 mA
54
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25 °C
2
V
eN
Output noise voltage
TA = 25 °C, B = 10 Hz to 100 kHz
10
µV/VO
RO
Output resistance
f = 1 kHz
20
m
Isc
Short circuit current
VI = 35 V, TA = 25 °C
0.2
A
Iscp
Short circuit peak current
TJ = 25 °C
2.2
A
∆VO/∆T
Output voltage drift
-1.5
mV/°C
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
a
Minimum load current for regulation is 5 mA.
Electrical characteristics
L78
14/54
DocID2143 Rev 34
Refer to the test circuits, TJ = 0 to 125 °C, VI = 10 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF
unless otherwise specified
a
Table 10: Electrical characteristics of L7805C
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
4.8
5
5.2
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 7 to 18 V
4.75
5
5.25
V
VO
Output voltage
IO = 1 A, VI = 18 to 20V, TJ = 25 °C
4.75
5
5.25
V
∆VO(1)
Line regulation
VI = 7 to 25 V, TJ = 25 °C
3
100
mV
VI = 8 to 12 V, TJ = 25 °C
1
50
∆VO(1)
Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C
100
mV
IO = 250 to 750 mA, TJ = 25 °C
50
Id
Quiescent current
TJ = 25° C
8
mA
∆Id
Quiescent current change
IO = 5 mA to 1 A
0.5
mA
VI = 7 to 23 V
0.8
∆VO/∆T
Output voltage drift
IO = 5 mA
-1.1
mV/°C
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
40
µV/VO
SVR
Supply voltage rejection
VI = 8 to 18 V, f = 120 Hz
62
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25 °C
2
V
RO
Output resistance
f = 1 kHz
17
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25 °C
0.75
A
Iscp
Short circuit peak current
TJ = 25 °C
2.2
A
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
a
Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DocID2143 Rev 34
15/54
Refer to the test circuits, TJ = 0 to 125 °C, VI = 11 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF
unless otherwise specified
a
Table 11: Electrical characteristics of L7806C
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
5.75
6
6.25
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 8 to 19 V
5.7
6
6.3
V
VO
Output voltage
IO = 1 A, VI = 19 to 21 V, TJ = 25 °C
5.7
6
6.3
V
∆VO(1)
Line regulation
VI = 8 to 25 V, TJ = 25 °C
120
mV
VI = 9 to 13 V, TJ = 25 °C
60
∆VO(1)
Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C
120
mV
IO = 250 to 750 mA, TJ = 25 °C
60
Id
Quiescent current
TJ = 25 °C
8
mA
DId
Quiescent current change
IO = 5 mA to 1 A
0.5
mA
VI = 8 to 24 V
1.3
∆VO/∆T
Output voltage drift
IO = 5 mA
-0.8
mV/°C
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
45
µV/VO
SVR
Supply voltage rejection
VI = 9 to 19 V, f = 120 Hz
59
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25 °C
2
V
RO
Output resistance
f = 1 kHz
19
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25 °C
0.55
A
Iscp
Short circuit peak current
TJ = 25 °C
2.2
A
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
a
Minimum load current for regulation is 5 mA.
Electrical characteristics
L78
16/54
DocID2143 Rev 34
Refer to the test circuits, TJ = 0 to 125 °C, VI = 14 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF
unless otherwise specified
a
Table 12: Electrical characteristics of L7808C
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
7.7
8
8.3
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 10.5 to 21 V
7.6
8
8.4
V
VO
Output voltage
IO = 1 A, VI = 21 to 25 V, TJ = 25 °C
7.6
8
8.4
V
∆VO(1)
Line regulation
VI = 10.5 to 25 V, TJ = 25 °C
160
mV
VI = 11 to 17 V, TJ = 25 °C
80
∆VO(1)
Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C
160
mV
IO = 250 to 750 mA, TJ = 25 °C
80
Id
Quiescent current
TJ = 25 °C
8
mA
∆Id
Quiescent current change
IO = 5 mA to 1 A
0.5
mA
VI = 10.5 to 25 V
1
∆VO/∆T
Output voltage drift
IO = 5 mA
-0.8
mV/°C
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
52
µV/VO
SVR
Supply voltage rejection
VI = 11.5 to 21.5 V, f = 120 Hz
56
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25 °C
2
V
RO
Output resistance
f = 1 kHz
16
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25 °C
0.45
A
Iscp
Short circuit peak current
TJ = 25 °C
2.2
A
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
a
Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DocID2143 Rev 34
17/54
Refer to the test circuits, TJ = 0 to 125 °C, VI = 14.5 V, IO = 500 mA, CI = 0.33 µF,
CO = 0.1 µF unless otherwise specified
a
Table 13: Electrical characteristics of L7885C
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
8.2
8.5
8.8
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 11 to 21.5 V
8.1
8.5
8.9
V
VO
Output voltage
IO = 1 A, VI = 21.5 to 26 V, TJ = 25 °C
8.1
8.5
8.9
V
∆VO(1)
Line regulation
VI = 11 to 27 V, TJ = 25 °C
160
mV
VI = 11.5 to 17.5 V, TJ = 25 °C
80
∆VO(1)
Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C
160
mV
IO = 250 to 750 mA, TJ = 25 °C
80
Id
Quiescent current
TJ = 25 °C
8
mA
∆Id
Quiescent current change
IO = 5 mA to 1 A
0.5
mA
VI = 11 to 26 V
1
∆VO/∆T
Output voltage drift
IO = 5 mA
-0.8
mV/°C
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
55
µV/VO
SVR
Supply voltage rejection
VI = 12 to 22 V, f = 120 Hz
56
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25 °C
2
V
RO
Output resistance
f = 1 kHz
16
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25 °C
0.45
A
Iscp
Short circuit peak current
TJ = 25 °C
2.2
A
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
a
Minimum load current for regulation is 5 mA.
Electrical characteristics
L78
18/54
DocID2143 Rev 34
Refer to the test circuits, TJ = 0 to 125 °C, VI = 15 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF
unless otherwise specified
a
Table 14: Electrical characteristics of L7809C
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
8.64
9
9.36
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 11.5 to 22 V
8.55
9
9.45
V
VO
Output voltage
IO = 1 A, VI = 22 to 26 V, TJ = 25 °C
8.55
9
9.45
V
∆VO(1)
Line regulation
VI = 11.5 to 26 V, TJ = 25 °C
180
mV
VI = 12 to 18 V, TJ = 25 °C
90
∆VO(1)
Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C
180
mV
IO = 250 to 750 mA, TJ = 25 °C
90
Id
Quiescent current
TJ = 25 °C
8
mA
∆Id
Quiescent current change
IO = 5 mA to 1 A
0.5
mA
VI = 11.5 to 26 V
1
∆VO/∆T
Output voltage drift
IO = 5 mA
-1
mV/°C
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
70
µV/VO
SVR
Supply voltage rejection
VI = 12 to 23 V, f = 120 Hz
55
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25 °C
2
V
RO
Output resistance
f = 1 kHz
17
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25 °C
0.40
A
Iscp
Short circuit peak current
TJ = 25 °C
2.2
A
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
a
Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DocID2143 Rev 34
19/54
Refer to the test circuits, TJ = 0 to 125 °C, VI = 19 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF
unless otherwise specified
a
Table 15: Electrical characteristics of L7812C
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
11.5
12
12.5
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 14.5 to 25 V
11.4
12
12.6
V
VO
Output voltage
IO = 1 A, VI = 25 to 27 V, TJ = 25 °C
11.4
12
12.6
V
∆VO(1)
Line regulation
VI = 14.5 to 30 V, TJ = 25 °C
240
mV
VI = 16 to 22 V, TJ = 25 °C
120
∆VO(1)
Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C
240
mV
IO = 250 to 750 mA, TJ = 25 °C
120
Id
Quiescent current
TJ = 25 °C
8
mA
∆Id
Quiescent current change
IO = 5 mA to 1 A
0.5
mA
VI = 14.5 to 30 V
1
∆VO/∆T
Output voltage drift
IO = 5 mA
-1
mV/°C
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
75
µV/VO
SVR
Supply voltage rejection
VI = 15 to 25 V, f = 120 Hz
55
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25 °C
2
V
RO
Output resistance
f = 1 kHz
18
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25 °C
0.35
A
Iscp
Short circuit peak current
TJ = 25 °C
2.2
A
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
a
Minimum load current for regulation is 5 mA.
Electrical characteristics
L78
20/54
DocID2143 Rev 34
Refer to the test circuits, TJ = 0 to 125 °C, VI = 23 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF
unless otherwise specified
a
Table 16: Electrical characteristics of L7815C
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
14.4
15
15.6
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 17.5 to 28 V
14.25
15
15.75
V
VO
Output voltage
IO = 1 A, VI = 28 to 30 V, TJ = 25 °C
14.25
15
15.75
V
∆VO(1)
Line regulation
VI = 17.5 to 30 V, TJ = 25 °C
300
mV
VI = 20 to 26 V, TJ = 25 °C
150
∆VO(1)
Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C
300
mV
IO = 250 to 750 mA, TJ = 25 °C
150
Id
Quiescent current
TJ = 25 °C
8
mA
∆Id
Quiescent current change
IO = 5 mA to 1A
0.5
mA
VI = 17.5 to 30 V
1
∆VO/∆T
Output voltage drift
IO = 5 mA
-1
mV/°C
eN
Output noise voltage
B = 10 Hz to 100kHz, TJ = 25 °C
90
µV/VO
SVR
Supply voltage rejection
VI = 18.5 to 28.5 V, f = 120 Hz
54
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25 °C
2
V
RO
Output resistance
f = 1 kHz
19
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25 °C
0.23
A
Iscp
Short circuit peak current
TJ = 25 °C
2.2
A
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
a
Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DocID2143 Rev 34
21/54
Refer to the test circuits, TJ = 0 to 125 °C, VI = 26 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF
unless otherwise specified
a
Table 17: Electrical characteristics of L7818C
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
17.3
18
18.7
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 21 to 31 V
17.1
18
18.9
V
VO
Output voltage
IO = 1 A, VI = 31 to 33 V, TJ = 25 °C
17.1
18
18.9
V
∆VO(1)
Line regulation
VI = 21 to 33 V, TJ = 25 °C
360
mV
VI = 24 to 30 V, TJ = 25 °C
180
∆VO(1)
Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C
360
mV
IO = 250 to 750 mA, TJ = 25 °C
180
Id
Quiescent current
TJ = 25 °C
8
mA
∆Id
Quiescent current change
IO = 5 mA to 1 A
0.5
mA
VI = 21 to 33 V
1
∆VO/∆T
Output voltage drift
IO = 5 mA
-1
mV/°C
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
110
µV/VO
SVR
Supply voltage rejection
VI = 22 to 32 V, f = 120 Hz
53
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25 °C
2
V
RO
Output resistance
f = 1 kHz
22
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25 °C
0.20
A
Iscp
Short circuit peak current
TJ = 25 °C
2.1
A
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
a
Minimum load current for regulation is 5 mA.
Electrical characteristics
L78
22/54
DocID2143 Rev 34
Refer to the test circuits, TJ = 0 to 125 °C, VI = 33 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF
unless otherwise specified
a
Table 18: Electrical characteristics of L7824C
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
23
24
25
V
VO
Output voltage
IO = 5 mA to 1 A, VI = 27 to 37 V
22.8
24
25.2
V
VO
Output voltage
IO = 1 A, VI = 37 to 38 V, TJ = 25 °C
22.8
24
25.2
V
∆VO(1)
Line regulation
VI = 27 to 38 V, TJ = 25 °C
480
mV
VI = 30 to 36 V, TJ = 25 °C
240
∆VO(1)
Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C
480
mV
IO = 250 to 750 mA, TJ = 25 °C
240
Id
Quiescent current
TJ = 25 °C
8
mA
∆Id
Quiescent current change
IO = 5 mA to 1 A
0.5
mA
VI = 27 to 38 V
1
∆VO/∆T
Output voltage drift
IO = 5 mA
-1.5
mV/°C
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
170
µV/VO
SVR
Supply voltage rejection
VI = 28 to 38 V, f = 120 Hz
50
dB
Vd
Dropout voltage
IO = 1 A, TJ = 25 °C
2
V
RO
Output resistance
f = 1 kHz
28
mΩ
Isc
Short circuit current
VI = 35 V, TJ = 25° C
0.15
A
Iscp
Short circuit peak current
TJ = 25 °C
2.1
A
Notes:
(1)Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into
account separately. Pulse testing with low duty cycle is used.
a
Minimum load current for regulation is 5 mA.
L78
Application information
DocID2143 Rev 34
23/54
6 Application information
6.1 Design consideration
The L78 Series of fixed voltage regulators are designed with thermal overload protection
that shuts down the circuit when subjected to an excessive power overload condition,
internal short-circuit protection that limits the maximum current the circuit will pass, and
output transistor safe-area compensation that reduces the output short-circuit current as
the voltage across the pass transistor is increased. In many low current applications,
compensation capacitors are not required. However, it is recommended that the regulator
input be bypassed with capacitor if the regulator is connected to the power supply filter with
long lengths, or if the output load capacitance is large. An input bypass capacitor should be
selected to provide good high frequency characteristics to insure stable operation under all
load conditions. A 0.33 µF or larger tantalum, mylar or other capacitor having low internal
impedance at high frequencies should be chosen. The bypass capacitor should be
mounted with the shortest possible leads directly across the regulators input terminals.
Normally good construction techniques should be used to minimize ground loops and lead
resistance drops since the regulator has no external sense lead.
The addition of an operational amplifier allows adjustment to higher or intermediate values
while retaining regulation characteristics. The minimum voltage obtained with the
arrangement is 2 V greater than the regulator voltage.
The circuit of Figure 13: "High current voltage regulator" can be modified to provide supply
protection against short circuit by adding a short circuit sense resistor, RSC, and an
additional PNP transistor. The current sensing PNP must be able to handle the short circuit
current of the three terminal regulator Therefore a four ampere plastic power transistor is
specified.
Figure 8: Fixed output regulator
1. Although no output capacitor is need for stability, it does improve transient response.
2. Required if regulator is located an appreciable distance from power supply filter.
Application information
L78
24/54
DocID2143 Rev 34
Figure 9: Current regulator
Figure 10: Circuit for increasing output voltage
Figure 11: Adjustable output regulator (7 to 30 V)
L78
Application information
DocID2143 Rev 34
25/54
Figure 12: 0.5 to 10 V regulator
Figure 13: High current voltage regulator
Figure 14: High output current with short circuit protection
Application information
L78
26/54
DocID2143 Rev 34
Figure 15: Tracking voltage regulator
Figure 16: Split power supply (± 15 V - 1 A)
* Against potential latch-up problems.
L78
Application information
DocID2143 Rev 34
27/54
Figure 17: Negative output voltage circuit
Figure 18: Switching regulator
Figure 19: High input voltage circuit (configuration 1)
Application information
L78
28/54
DocID2143 Rev 34
Figure 20: High input voltage circuit (configuration 2)
Figure 21: High input and output voltage
Figure 22: Reducing power dissipation with dropping resistor
L78
Application information
DocID2143 Rev 34
29/54
Figure 23: Remote shutdown
Figure 24: Power AM modulator (unity voltage gain, IO ≤ 0.5)
The circuit performs well up to 100 kHz.
Application information
L78
30/54
DocID2143 Rev 34
Figure 25: Adjustable output voltage with temperature compensation
Q2 is connected as a diode in order to compensate the variation of the Q1 VBE with
the temperature. C allows a slow rise time of the VO.
Figure 26: Light controllers (VO(min) = VXX + VBE)
Figure 27: 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 Figure 22: "Reducing power dissipation with dropping
resistor") 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 destroyed.
The external diode by-passes the current from the IC to ground.
L78
Typical performance
DocID2143 Rev 34
31/54
7 Typical performance
Figure 28: Dropout voltage vs junction temperature
Figure 29: Peak output current vs input/output
differential voltage
Figure 30: Supply voltage rejection vs frequency
Figure 31: Output voltage vs junction temperature
Typical performance
L78
32/54
DocID2143 Rev 34
Figure 32: Output impedance vs frequency
Figure 33: Quiescent current vs junction temp.
Figure 34: Load transient response
Figure 35: Line transient response
Figure 36: Quiescent current vs. input voltage
L78
Package information
DocID2143 Rev 34
33/54
8 Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Package information
L78
34/54
DocID2143 Rev 34
8.1 TO-220 (dual gauge) package information
Figure 37: TO-220 (dual gauge) package outline
L78
Package information
DocID2143 Rev 34
35/54
Table 19: TO-220 (dual gauge) mechanical data
Dim.
mm
Min.
Typ.
Max.
A
4.40
4.60
b
0.61
0.88
b1
1.14
1.70
c
0.48
0.70
D
15.25
15.75
D1
1.27
E
10
10.40
e
2.40
2.70
e1
4.95
5.15
F
1.23
1.32
H1
6.20
6.60
J1
2.40
2.72
L
13
14
L1
3.50
3.93
L20
16.40
L30
28.90
P
3.75
3.85
Q
2.65
2.95
Package information
L78
36/54
DocID2143 Rev 34
8.2 TO-220 (single gauge) package information
Figure 38: TO-220 (single gauge) package outline
L78
Package information
DocID2143 Rev 34
37/54
Table 20: TO-220 (single gauge) mechanical data
Dim.
mm
Min.
Typ.
Max.
A
4.40
4.60
b
0.61
0.88
b1
1.14
1.70
c
0.48
0.70
D
15.25
15.75
E
10.00
10.40
e
2.40
2.70
e1
4.95
5.15
F
0.51
0.60
H1
6.20
6.60
J1
2.40
2.72
L
13.00
14.00
L1
3.50
3.93
L20
16.40
L30
28.90
P
3.75
3.85
Q
2.65
2.95
Package information
L78
38/54
DocID2143 Rev 34
8.3 TO-220FP package information
Figure 39: TO-220FP package outline
L78
Package information
DocID2143 Rev 34
39/54
Table 21: TO-220FP package mechanical data
Dim.
mm
Min.
Typ.
Max.
A
4.4
4.6
B
2.5
2.7
D
2.5
2.75
E
0.45
0.7
F
0.75
1
F1
1.15
1.70
F2
1.15
1.70
G
4.95
5.2
G1
2.4
2.7
H
10
10.4
L2
16
L3
28.6
30.6
L4
9.8
10.6
L5
2.9
3.6
L6
15.9
16.4
L7
9
9.3
Dia
3
3.2
Package information
L78
40/54
DocID2143 Rev 34
8.4 TO-220 packing information
Figure 40: Tube for TO-220 (dual gauge) (mm.)
Figure 41: Tube for TO-220 (single gauge) (mm.)
L78
Package information
DocID2143 Rev 34
41/54
8.5 DPAK package information
Figure 42: DPAK package outline
0068772_A_21
Package information
L78
42/54
DocID2143 Rev 34
Table 22: DPAK mechanical data
Dim.
mm
Min.
Typ.
Max.
A
2.20
2.40
A1
0.90
1.10
A2
0.03
0.23
b
0.64
0.90
b4
5.20
5.40
c
0.45
0.60
c2
0.48
0.60
D
6.00
6.20
D1
5.10
E
6.40
6.60
E1
4.70
e
2.28
e1
4.40
4.60
H
9.35
10.10
L
1.00
1.50
(L1)
2.80
L2
0.80
L4
0.60
1.00
R
0.20
V2
L78
Package information
DocID2143 Rev 34
43/54
Figure 43: DPAK recommended footprint (dimensions are in mm)
Package information
L78
44/54
DocID2143 Rev 34
8.6 D²PAK (SMD 2L STD-ST) type A package information
Figure 44: D²PAK (SMD 2L STD-ST) type A package outline
L78
Package information
DocID2143 Rev 34
45/54
Table 23: D²PAK (SMD 2L STD-ST) mechanical data
Dim.
mm
Min.
Typ.
Max.
A
4.40
4.60
A1
0.03
0.23
b
0.70
0.93
b2
1.14
1.70
c
0.45
0.60
c2
1.23
1.36
D
8.95
9.35
D1
7.50
7.75
8.00
D2
1.10
1.30
1.50
E
10
10.40
E1
8.50
8.70
8.90
E2
6.85
7.05
7.25
e
2.54
e1
4.88
5.28
H
15
15.85
J1
2.49
2.69
L
2.29
2.79
L1
1.27
1.40
L2
1.30
1.75
R
0.4
V2
Package information
L78
46/54
DocID2143 Rev 34
8.7 D²PAK (SMD 2L Wooseok-subcon.) package information
Figure 45: D²PAK (SMD 2L Wooseok-subcon.) package outline
L78
Package information
DocID2143 Rev 34
47/54
Table 24: D²PAK (SMD 2L Wooseok-subcon.) mechanical data
Dim.
mm
Min.
Typ.
Max.
A
4.30
4.70
A1
0
0.20
b
0.70
0.90
b2
1.17
1.37
c
0.45
0.50
0.60
c2
1.25
1.30
1.40
D
9
9.20
9.40
D1
7.50
E
9.80
10.20
E1
7.50
e
2.54
e1
5.08
H
15
15.30
15.60
J1
2.20
2.60
L
1.79
2.79
L1
1
1.40
L2
1.20
1.60
R
0.30
V2
Package information
L78
48/54
DocID2143 Rev 34
Figure 46: D²PAK (SMD 2L Wooseok-subcon.) recommended footprint
L78
Package information
DocID2143 Rev 34
49/54
8.8 D²PAK and DPAK packing information
Figure 47: Tape outline
Package information
L78
50/54
DocID2143 Rev 34
Figure 48: Reel outline
Table 25: D²PAK tape and reel mechanical data
Tape
Reel
Dim.
mm
Dim.
mm
Min.
Max.
Min.
Max.
A0
10.5
10.7
A
330
B0
15.7
15.9
B
1.5
D
1.5
1.6
C
12.8
13.2
D1
1.59
1.61
D
20.2
E
1.65
1.85
G
24.4
26.4
F
11.4
11.6
N
100
K0
4.8
5.0
T
30.4
P0
3.9
4.1
P1
11.9
12.1
Base quantity
1000
P2
1.9
2.1
Bulk quantity
1000
R
50
T
0.25
0.35
W
23.7
24.3
L78
Package information
DocID2143 Rev 34
51/54
Table 26: DPAK tape and reel mechanical data
Tape
Reel
Dim.
mm
Dim.
mm
Min.
Max.
Min.
Max.
A0
6.8
7
A
330
B0
10.4
10.6
B
1.5
B1
12.1
C
12.8
13.2
D
1.5
1.6
D
20.2
D1
1.5
G
16.4
18.4
E
1.65
1.85
N
50
F
7.4
7.6
T
22.4
K0
2.55
2.75
P0
3.9
4.1
Base qty.
2500
P1
7.9
8.1
Bulk qty.
2500
P2
1.9
2.1
R
40
T
0.25
0.35
W
15.7
16.3
Ordering information
L78
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DocID2143 Rev 34
9 Ordering information
Table 27: Order codes
Part
number
Order codes
TO-220
(single gauge)
TO-220
(dual gauge)
DPAK
D²PAK
TO-220FP
Output
voltages
L7805C
L7805CV
L7805CV-DG
L7805CDT-TR
L7805CD2T-TR
L7805CP
5 V
L7805AB
L7805ABV
L7805ABV-DG
L7805ABD2T-TR
L7805ABP
5 V
L7805AC
L7805ACV
L7805ACV-DG
L7805ACD2T-TR
L7805ACP
5 V
L7806C
L7806CV
L7806CV-DG
L7806CD2T-TR
6 V
L7806AB
L7806ABV
L7806ABV-DG
L7806ABD2T-TR
6 V
L7806AC
L7806ACV
L7806ACV-DG
6 V
L7808C
L7808CV
L7808CV-DG
L7808CD2T-TR
8 V
L7808AB
L7808ABV
L7808ABV-DG
L7808ABD2T-TR
8 V
L7808AC
L7808ACV
L7808ACV-DG
8 V
L7885C
L7885CV
8.5 V
L7809C
L7809CV
L7809CV-DG
L7809CD2T-TR
L7809CP
9 V
L7809AB
L7809ABV
L7809ABV-DG
L7809ABD2T-TR
9 V
L7809AC
L7809ACV
9 V
L7812C
L7812CV
L7812CV-DG
L7812CD2T-TR
L7812CP
12 V
L7812AB
L7812ABV
L7812ABV-DG
L7812ABD2T-TR
12 V
L7812AC
L7812ACV
L7812ACV-DG
L7812ACD2T-TR
12 V
L7815C
L7815CV
L7815CV-DG
L7815CD2T-TR
L7815CP
15 V
L7815AB
L7815ABV
L7815ABV-DG
L7815ABD2T-TR
15 V
L7815AC
L7815ACV
L7815ACV-DG
L7815ACD2T-TR
15 V
L7818C
L7818CV
L7818CV-DG
18 V
L7824C
L7824CV
L7824CV-DG
L7824CD2T-TR
L7824CP
24 V
L7824AB
L7824ABV
L7824ABV-DG
24 V
L7824AC
L7824ACV
L7824ACV-DG
24 V
L78
Revision history
DocID2143 Rev 34
53/54
10 Revision history
Table 28: Document revision history
Date
Revision
Changes
21-Jun-2004
12
Document updating.
03-Aug-2006
13
Order codes has been updated and new template.
19-Jan-2007
14
D²PAK mechanical data has been updated and add footprint data.
31-May-2007
15
Order codes has been updated.
29-Aug-2007
16
Added Table 1 in cover page.
11-Dec-2007
17
Modified: Table 27.
06-Feb-2008
18
Added: TO-220 mechanical data Figure 38 on page 38 , Figure 39 on page 39, and
Table 23 on page 37. Modified: Table 27 on page 58.
18-Mar-2008
19
Added: Table 29: DPAK mechanical data on page 50, Table 30: Tape and reel
DPAK mechanical data on page 52. Modified: Table 27 on page 58.
26-Jan-2010
20
Modified Table 1 on page 1 and Table 23 on page 37, added: Figure 38 on
page 38 and Figure 39 on page 39, Figure 40 on page 45 and Figure 41 on
page 45.
04-Mar-2010
21
Added notes Figure 38 on page 38.
08-Sep-2010
22
Modified Table 27 on page 58.
23-Nov-2010
23
Added: TJ = 25 °C test condition in DVO on Table 3, 4, 5, 6, 7, 8 and Table 9.
16-Sep-2011
24
Modified title on page 1.
30-Nov-2011
25
Added: order codes L7805CV-DG, L7806CV-DG, L7808ABV-DG, L7812CV-DG
and L7815CV-DG Table 27 on page 58.
08-Feb-2012
26
Added: order codes L7805ACV-DG, L7805ABV-DG, L7806ABV-DG, L7808CV-
DG, L7809CV-DG, L7812ACV-DG, L7818CV-DG, L7824CV-DG Table 27 on
page 58.
27-Mar-2012
27
Added: order codes L7812ABV-DG, L7815ABV-DG Table 27 on page 58.
27-Apr-2012
28
Modified: VI = 10.4 to 23 V ==> VI = 11.4 to 23 V test conditon value Line
regulation Table 6 on page 13.
10-May-2012
29
Added: order codes L7806ACV-DG, L7808ACV-DG, L7815ACV-DG, L7824ABV-
DG and L7824ACV-DG Table 27 on page 58.
19-Sep-2012
30
Modified load regulation units from V to mV in Table 3 to Table 9.
12-Mar-2013
31
Modified: VO output voltage at 25 °C min. value 14.4 V Table 16 on page 23.
04-Mar-2014
32
Part numbers L78xx, L78xxC, L78xxAB, L78xxAC changed to L78.
Removed TO-3 package.
Updated the description in cover page, Section 2: Pin configuration, Section 3:
Maximum ratings, Section 4: Test circuits, Section 5: Electrical characteristics,
Section 6: Application information, Section 8: Package information and Table 27:
Order codes.
Added Section 9: Packaging mechanical data.
Minor text changes.
26-Feb-2016
33
Updated Section 8: Package information.
Minor text changes.
28-Nov-2016
34
Updated Section 9: "Ordering information".
Minor text changes.
L78
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DocID2143 Rev 34
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improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST
products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order
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Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the
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