STMicroelectronics L78 Datasheet
Iklan
Iklan
L78
Datasheet
Positive voltage regulator ICs
TO-220
DPAK
TO-220FP
D²PAK
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.
Maturity status link
L78
DS0422 - Rev 36 - September 2018
For further information contact your local STMicroelectronics sales office.
www.st.com
1
Diagram
Figure 2. Block diagram
L78
Diagram
GAMG220920161000MT
DS0422 - Rev 36 page 2/55
L78
Pin configuration
2
Pin configuration
Figure 3. Pin connections (top view)
TO-220 TO-220FP
D²PAK
Figure 4. Schematic diagram
DPAK
GAMG220920161001MT
DS0422 - Rev 36
GAMG220920161002MT page 3/55
3
Note:
L78
Maximum ratings
Maximum ratings
Symbol
V
I
I
O
P
D
T
STG
T
OP
DC input voltage
Output current
Power dissipation
Storage temperature range
Table 1. Absolute maximum ratings
Parameter for V
O
= 5 to 18 V for V
O
= 20, 24 V
Operating junction temperature range for L78xxC, L78xxAC for L78xxAB
Value
35
40
Internally limited
Internally limited
-65 to 150
0 to 125
-40 to 125
Unit
V
°C
°C
Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
Symbol
R thJC
R thJA
Parameter
Thermal resistance junction-case
Thermal resistance junction-ambient
Table 2. Thermal data
D²PAK
3
62.5
DPAK
8
100
TO-220
5
50
TO-220FP
5
60
Unit
°C/W
°C/W
Figure 5. Application circuits
DS0422 - Rev 36
GAMG220920161003MT page 4/55
L78
Test circuits
4
Test circuits
Figure 6. DC parameter
Figure 7. Load regulation
GAMG220920161004MT
DS0422 - Rev 36
Figure 8. Ripple rejection
GAMG220920161005MT
GAMG220920161006MT page 5/55
L78
Electrical characteristics
5
Electrical characteristics
V
I
= 10 V, I
O
= 1 A, T
J
= 0 to 125 °C (L7805AC), T
J
= -40 to 125 °C (L7805AB), unless otherwise specified.
Symbol
V
O
V
O
V
O
∆V
∆V
I
O
O
q
Parameter
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Table 3. Electrical characteristics of L7805A
Test conditions
T
J
= 25 °C
I
O
= 5 mA to 1 A, V
I
= 7.5 to 18 V
I
O
= 1 A, V
I
= 18 to 20 V, T
J
= 25 °C
V
I
= 7.5 to 25 V, I
O
= 500 mA, T
J
= 25 °C
V
I
= 8 to 12 V
V
I
= 8 to 12 V, T
J
= 25 °C
V
I
= 7.3 to 20 V, T
J
= 25 °C
I
O
= 5 mA to 1 A
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
I
O
= 250 to 750 mA
T
J
= 25 °C
∆I q
SVR
V d eN
R
O
I sc
I scp
∆V
O
/∆T
Quiescent current change
Supply voltage rejection
Dropout voltage
Output noise voltage
Output resistance
Short circuit current
Short circuit peak current
Output voltage drift
V
I
= 8 to 23 V, I
O
= 500 mA
V
I
= 7.5 to 20 V, T
J
= 25 °C
I
O
= 5 mA to 1 A
V
I
= 8 to 18 V, f = 120 Hz, I
O
= 500 mA
I
O
= 1 A, T
J
= 25 °C
T
A
= 25 °C, B =10 Hz to 100 kHz f = 1 kHz
V
I
= 35 V, T
T
J
A
= 25 °C
= 25 °C
1. Load and line regulation are specified at constant junction temperature. Changes in V
O effects must be taken into account separately. Pulse testing with low duty cycle is used.
due to heating
Min.
Typ.
Max.
4.9
4.8
4.8
5
5
5.1
5.2
5
7
10
5.2
50
50
25
30
2
7
8
4.3
25
50
100
100
50
6
6
0.8
0.8
0.5
0.2
2.2
-1.1
68
2
10
17 mV dB
V
µV/V
O mΩ
A
A mV/°C mA mA mA mA mA
Unit
V
V
V mV mV mV mV
Note: Minimum load current for regulation is 5 mA.
DS0422 - Rev 36 page 6/55
L78
Electrical characteristics
V
I
= 11 V, I
O
= 1 A, T
J
= 0 to 125 °C (L7806AC), T
J
= -40 to 125 °C (L7806AB), unless otherwise specified.
Symbol
V
O
V
O
V
O
∆V
∆V
I
O
O
q
Parameter
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Table 4. Electrical characteristics of L7806A
Test conditions
T
J
= 25 °C
I
O
= 5 mA to 1 A, V
I
= 8.6 to 19 V
I
O
= 1 A, V
I
= 19 to 21 V, T
J
= 25 °C
V
I
= 8.6 to 25 V, I
O
= 500 mA, T
J
= 25 °C
V
I
= 9 to 13 V
V
I
= 9 to 13 V, T
J
= 25 °C
V
I
= 8.3 to 21 V, T
J
= 25 °C
I
O
= 5 mA to 1 A
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
I
O
= 250 to 750 mA
T
J
= 25° C
∆I q
SVR
V d eN
R
O
I sc
I scp
∆V
O
/∆T
Quiescent current change
Supply voltage rejection
Dropout voltage
Output noise voltage
Output resistance
Short circuit current
Short circuit peak current
Output voltage drift
T
A
V
I
= 9 to 24 V, I
O
= 500 mA
V
I
= 8.6 to 21 V, T
J
= 25 °C
I
O
= 5 mA to 1 A
V
I
= 9 to 19 V, f = 120 Hz, I
O
= 500 mA
I
O
= 25 °C, B =10 Hz to 100 kHz
V
I
= 1 A, T
J f = 1 kHz
= 35 V, T
T
J
A
= 25 °C
= 25 °C
= 25 °C
1. Load and line regulation are specified at constant junction temperature. Changes in V
O effects must be taken into account separately. Pulse testing with low duty cycle is used.
due to heating
Min.
Typ.
Max.
5.88
5.76
5.76
6
6
6
9
6.12
6.24
6.24
60
11
3
9
25
30
10
4.3
60
30
60
100
100
50
6
6
0.8
0.8
0.5
0.2
2.2
-0.8
65
2
10
17 mV dB
V
µV/V
O mΩ mA mA mA mA mA
A
A mV/°C
Unit
V
V
V mV mV mV mV
Note: Minimum load current for regulation is 5 mA.
DS0422 - Rev 36 page 7/55
L78
Electrical characteristics
V
I
= 14 V, I
O
= 1 A, T
J
= 0 to 125 °C (L7808AC), T
J
= -40 to 125 °C (L7808AB), unless otherwise specified.
Symbol
V
O
V
O
V
O
∆V
O
∆V
O
Parameter
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Table 5. Electrical characteristics of L7808A
Test conditions
T
J
= 25 °C
I
O
= 5 mA to 1 A, V
I
= 10.6 to 21 V
I
O
= 1 A, V
I
= 21 to 23 V, T
J
= 25 °C
V
I
= 10.6 to 25 V, I
O
= 500 mA, T
J
= 25 °C
V
I
= 11 to 17 V
V
I
= 11 to 17 V, T
J
= 25 °C
V
I
= 10.4 to 23 V, T
J
= 25 °C
I
O
= 5 mA to 1 A
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
I
O
= 250 to 750 mA
T
J
= 25 °C
I q
Quiescent current
∆I q
SVR
V d eN
R
O
I sc
I scp
∆V
O
/∆T
Quiescent current change
Supply voltage rejection
Dropout voltage
Output noise voltage
Output resistance
Short circuit current
Short circuit peak current
Output voltage drift
V
I
= 11 to 23 V, I
O
= 500 mA
V
I
= 10.6 to 23 V, T
J
= 25 °C
I
O
= 5 mA to 1 A
V
I
= 11.5 to 21.5 V, f = 120 Hz, I
O
= 500 mA
I
O
= 1 A, T
J
= 25 °C
T
A
= 25 °C, B =10 Hz to 100 kHz f = 1 kHz
V
I
= 35 V, T
T
J
A
= 25 °C
= 25 °C
1. Load and line regulation are specified at constant junction temperature. Changes in V
O effects must be taken into account separately. Pulse testing with low duty cycle is used.
due to heating
Note: Minimum load current for regulation is 5 mA.
Min.
Typ.
Max.
7.84
7.7
7.7
8
8
8.16
8.3
8
12
15
8.3
80
80
5
12
25
30
10
4.3
40
80
100
100
50
6
6
0.8
0.8
0.5
0.2
2.2
-0.8
62
2
10
18 mV dB
V
µV/V
O mΩ
A
A mV/°C mA mA mA mA mA
Unit
V
V
V mV mV mV mV
DS0422 - Rev 36 page 8/55
L78
Electrical characteristics
V
I
= 15 V, I
O
= 1 A, T
J
= 0 to 125 °C (L7809AC), T
J
= -40 to 125 °C (L7809AB), unless otherwise specified(Minimum load current for regulation is 5 mA.)
Symbol
V
O
V
O
V
O
∆V
O
∆V
O
Parameter
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Table 6. Electrical characteristics of L7809A
Test conditions
T
J
= 25 °C
I
O
= 5 mA to 1 A, V
I
= 10.6 to 22 V
I
O
= 1 A, V
I
= 22 to 24 V, T
J
= 25 °C
V
I
= 10.6 to 25 V, I
O
= 500 mA, T
J
= 25 °C
V
I
= 11 to 17 V
V
I
= 11 to 17 V, T
J
= 25 °C
V
I
= 11.4 to 23 V, T
J
= 25 °C
I
O
= 5 mA to 1 A
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
I
O
= 250 to 750 mA
T
J
= 25 °C
I q
Quiescent current
∆I
V d eN q
SVR
Quiescent current change
Supply voltage rejection
Dropout voltage
Output noise voltage
V
I
= 11 to 25 V, I
O
= 500 mA
V
I
= 10.6 to 23 V, T
J
= 25 °C
I
O
= 5 mA to 1 A
V
I
= 11.5 to 21.5 V, f = 120 Hz, I
O
= 500 mA
I
O
= 1 A, T
J
= 25 °C
T
A
= 25 °C, B =10 Hz to 100 kHz f = 1 kHz R
O
I sc
I scp
∆V
O
/∆T
Output resistance
Short circuit current
Short circuit peak current
Output voltage drift
V
I
= 35 V, T
T
J
A
= 25 °C
= 25 °C
1. Load and line regulation are specified at constant junction temperature. Changes in V
O effects must be taken into account separately. Pulse testing with low duty cycle is used.
due to heating
Note: Minimum load current for regulation is 5 mA.
Min.
Typ.
Max.
8.82
9 9.18
8.65
9 9.35
8.65
9
12
15
5
9.35
90
90
45
12
25
30
10
4.3
90
100
100
50
6
6
0.8
0.8
0.5
61
2
10
18
0.2
2.2
-0.8
mV mA dB
V
µV/V
O mΩ mA mA mA mA
A
A mV/°C
Unit
V
V
V mV mV mV mV
DS0422 - Rev 36 page 9/55
L78
Electrical characteristics
V
I
= 19 V, I
O
= 1 A, T
J
= 0 to 125 °C (L7812AC), T
J
= -40 to 125 °C (L7812AB), unless otherwise specified.
Symbol
V
O
V
O
V
O
∆V
∆V
I
O
O
q
Parameter
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Table 7. Electrical characteristics of L7812A
Test conditions
T
J
= 25 °C
I
O
= 5 mA to 1 A, V
I
= 14.8 to 25 V
I
O
= 1 A, V
I
= 25 to 27 V, T
J
= 25 °C
V
I
= 14.8 to 30 V, I
O
= 500 mA, T
J
= 25 °C
V
I
= 16 to 12 V
V
I
= 16 to 12 V, T
J
= 25 °C
V
I
= 14.5 to 27 V, T
J
= 25 °C
I
O
= 5 mA to 1 A
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
I
O
= 250 to 750 mA
T
J
= 25 °C
DI q
SVR
V d eN
R
O
I sc
I scp
∆V
O
/∆T
Quiescent current change
Supply voltage rejection
Dropout voltage
Output noise voltage
Output resistance
Short circuit current
Short circuit peak current
Output voltage drift
V
I
= 15 to 25 V, f = 120 Hz, I
O
T
A
V
I
= 15 to 30 V, I
O
= 500 mA
V
I
= 14.8 to 27 V, T
J
= 25 °C
I
O
V
I
I
O
= 5 mA to 1 A
= 1 A, T
J
= 35 V, T
A
T
J
= 25 °C
= 25 °C
= 25 °C
= 500 mA
= 25 °C, B = 10 Hz to 100 kHz f = 1 kHz
1. Load and line regulation are specified at constant junction temperature. Changes in V
O effects must be taken into account separately. Pulse testing with low duty cycle is used.
due to heating
Min.
11.75
11.5
11.5
0.2
2.2
-1
60
2
10
18
12
13
16
6
13
Typ.
Max.
12
12
12.25
12.5
25
30
10
4.4
50
6
6
0.8
0.8
0.5
12.5
120
120
60
120
100
100 mV dB
V
µV/V
O mΩ mA mA mA mA mA
A
A mV/°C
Unit
V
V
V mV mV mV mV
Note: Minimum load current for regulation is 5 mA.
DS0422 - Rev 36 page 10/55
L78
Electrical characteristics
V
I
= 23 V, I
O
= 1 A, T
J
= 0 to 125 °C (L7815AC), T
J
= -40 to 125 °C (L7815AB), unless otherwise specified.
Symbol
V
O
V
O
V
O
∆V
O
∆V
O
Parameter
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Table 8. Electrical characteristics of L7815A
Test conditions
T
J
= 25 °C
I
O
= 5 mA to 1 A, V
I
= 17.9 to 28 V
I
O
= 1 A, V
I
= 28 to 30 V, T
J
= 25 °C
V
I
= 17.9 to 30 V, I
O
= 500 mA, T
J
= 25 °C
V
I
= 20 to 26 V
V
I
= 20 to 26 V, T
J
= 25 °C
V
I
= 17.5 to 30 V, T
J
= 25 °C
I
O
= 5 mA to 1 A
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
I
O
= 250 to 750 mA
T
J
= 25 °C
I q
Quiescent current
∆I q
SVR
V d eN
R
O
I sc
I scp
∆V
O
/∆T
Quiescent current change
Supply voltage rejection
Dropout voltage
Output noise voltage
Output resistance
Short circuit current
Short circuit peak current
Output voltage drift
V
I
= 17.5 to 30 V, I
O
= 500 mA
V
I
= 17.5 to 30 V, T
J
= 25 °C
I
O
= 5 mA to 1 A
V
I
= 18.5 to 28.5 V, f = 120 Hz, I
O
= 500 mA
I
O
= 1 A, T
J
= 25 °C
T
A
= 25 °C, B = 10Hz to 100 kHz f = 1 kHz
V
I
= 35 V, T
T
J
A
= 25 °C
= 25 °C
1. Load and line regulation are specified at constant junction temperature. Changes in V
O effects must be taken into account separately. Pulse testing with low duty cycle is used.
due to heating
Note: Minimum load current for regulation is 5 mA.
Min.
Typ.
Max.
14.7
14.4
14.4
15
15
15.3
15.6
15
13
16
15.6
150
150
6
13
25
30
10
4.4
75
150
100
100
50
6
6
0.8
0.8
0.5
0.2
2.2
-1
58
2
10
19 mV dB
V
µV/V
O mΩ
A
A mV/°C mA mA mA mA mA
Unit
V
V
V mV mV mV mV
DS0422 - Rev 36 page 11/55
L78
Electrical characteristics
V
I
= 33 V, I
O
= 1 A, T
J
= 0 to 125 °C (L7824AC), T
J
= -40 to 125 °C (L7824AB), unless otherwise specified.
Symbol
∆V
∆V
V
O
V
O
V
O
I
O
O
q
Parameter
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Table 9. Electrical characteristics of L7824A
Test conditions
T
J
= 25 °C
I
O
= 5 mA to 1 A, V
I
= 27.3 to 37 V
I
O
= 1 A, V
I
= 37 to 38 V, T
J
= 25 °C
V
I
= 27 to 38 V, I
O
= 500 mA, T
J
= 25 °C
V
I
= 30 to 36 V
V
I
= 30 to 36 V, T
J
= 25 °C
V
I
= 26.7 to 38 V, T
J
= 25 °C
I
O
= 5 mA to 1 A
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
I
O
= 250 to 750 mA
T
J
= 25 °C
∆I
V d q
SVR eN
Quiescent current change
Supply voltage rejection
Dropout voltage
Output noise voltage
Output resistance
Short circuit current
Short circuit peak current
Output voltage drift
V
I
= 27.3 to 38 V, I
O
= 500 mA
V
I
= 27.3 to 38 V, T
J
= 25 °C
I
O
= 5 mA to 1 A
V
I
= 28 to 38 V, f = 120 Hz, I
O
= 500 mA
I
O
= 1 A, T
J
= 25 °C
T
A
= 25 °C, B = 10 Hz to 100 kHz f = 1 kHz R
O
I sc
I scp
∆V
O
/∆T
V
I
= 35 V, T
T
J
A
= 25 °C
= 25 °C
1. 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.
Min.
Typ.
Max.
23.5
24 24.5
23
23
24
24
25
25
31
35
14
31
240
200
120
240
25
30
10
4.6
100
100
50
6
6
0.8
0.8
0.5
20
0.2
2.2
-1.5
54
2
10
Note: Minimum load current for regulation is 5 mA.
mV dB
V
µV/V
O m
A
A mV/°C mA mA mA mA mA mV mV mV mV
Unit
V
V
V
DS0422 - Rev 36 page 12/55
L78
Electrical characteristics
Refer to the test circuits, T
J specified.
= 0 to 125 °C, V
I
= 10 V, I
O
= 500 mA, C
I
= 0.33 µF, C
O
= 0.1 µF unless otherwise
Table 10. Electrical characteristics of L7805C
Symbol Parameter Test conditions Min.
∆V
∆V
∆V
V
V
V
I
O
O
∆I
O
O
O
O d
/∆T eN d
SVR
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Quiescent current change
Output voltage drift
Output noise voltage
Supply voltage rejection
T
J
= 25 °C
I
O
= 5 mA to 1 A, V
I
= 7 to 18 V
I
O
= 1 A, V
I
= 18 to 20V, T
J
= 25 °C
V
I
= 7 to 25 V, T
J
= 25 °C
V
I
= 8 to 12 V, T
J
= 25 °C
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
I
O
= 250 to 750 mA, T
J
= 25 °C
T
J
= 25° C
I
O
= 5 mA to 1 A
V
I
= 7 to 23 V
I
O
= 5 mA
B = 10 Hz to 100 kHz, T
J
= 25 °C
V
I
= 8 to 18 V, f = 120 Hz
I
O
= 1 A, T
J
= 25 °C
I
V d
R
O
I sc scp
Dropout voltage
Output resistance
Short circuit current
Short circuit peak current f = 1 kHz
V
I
= 35 V, T
J
= 25 °C
T
J
= 25 °C
1. Load and line regulation are specified at constant junction temperature. Changes in V
O effects must be taken into account separately. Pulse testing with low duty cycle is used.
due to heating
4.8
4.75
4.75
62
Note: Minimum load current for regulation is 5 mA.
2
17
0.75
2.2
Typ.
5
5
5
3
1
8
0.5
0.8
100
50
100
50
Max.
5.2
5.25
5.25
-1.1
40 mV mA mA mV/°C
µV/V
O dB
V mΩ
A
A
Unit
V
V
V mV
DS0422 - Rev 36 page 13/55
L78
Electrical characteristics
Refer to the test circuits, T
J specified.
= 0 to 125 °C, V
I
= 11 V, I
O
= 500 mA, C
I
= 0.33 µF, C
O
= 0.1 µF unless otherwise
Table 11. Electrical characteristics of L7806C
Symbol
∆V
O
∆V
∆V
V
O
V
O
V
O
I
O
DI
O d eN d
SVR
/∆T
Parameter
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Quiescent current change
Output voltage drift
Output noise voltage
Supply voltage rejection
Dropout voltage
Output resistance
Short circuit current
Short circuit peak current
Test conditions
T
J
= 25 °C
I
O
= 5 mA to 1 A, V
I
= 8 to 19 V
I
O
= 1 A, V
I
= 19 to 21 V, T
J
= 25 °C
V
I
= 8 to 25 V, T
J
= 25 °C
V
I
= 9 to 13 V, T
J
= 25 °C
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
I
O
= 250 to 750 mA, T
J
= 25 °C
T
J
= 25 °C
I
O
= 5 mA to 1 A
V
I
= 8 to 24 V
I
O
= 5 mA
B = 10 Hz to 100 kHz, T
J
= 25 °C
V
I
= 9 to 19 V, f = 120 Hz
I
O
= 1 A, T
J
= 25 °C f = 1 kHz
I
I
V d
R
O sc scp
V
I
= 35 V, T
J
= 25 °C
T
J
= 25 °C
1. 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.
Min.
Typ.
5.75
6
5.7
5.7
59
6
6
-0.8
45
2
19
0.55
2.2
Note: Minimum load current for regulation is 5 mA.
Max.
6.25
6.3
6.3
120
60
120
60
8
0.5
1.3
mV mA mA mV/°C
µV/V
O dB
V mΩ
A
A
Unit
V
V
V mV
DS0422 - Rev 36 page 14/55
L78
Electrical characteristics
Refer to the test circuits, T
J specified.
= 0 to 125 °C, V
I
= 14 V, I
O
= 500 mA, C
I
= 0.33 µF, C
O
= 0.1 µF unless otherwise
Table 12. Electrical characteristics of L7808C
Symbol
∆V
O
∆V
∆V
V
O
V
O
V
O
I
O
∆I
O d d eN
SVR
/∆T
Parameter
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Quiescent current change
Output voltage drift
Output noise voltage
Supply voltage rejection
Dropout voltage
Output resistance
Short circuit current
Short circuit peak current
Test conditions
T
J
= 25 °C
I
O
= 5 mA to 1 A, V
I
= 10.5 to 21 V
I
O
= 1 A, V
I
= 21 to 25 V, T
J
= 25 °C
V
I
= 10.5 to 25 V, T
J
= 25 °C
V
I
= 11 to 17 V, T
J
= 25 °C
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
I
O
= 250 to 750 mA, T
J
= 25 °C
T
J
= 25 °C
I
O
= 5 mA to 1 A
V
I
= 10.5 to 25 V
I
O
= 5 mA
B = 10 Hz to 100 kHz, T
J
= 25 °C
V
I
= 11.5 to 21.5 V, f = 120 Hz
I
O
= 1 A, T
J
= 25 °C f = 1 kHz
I
I
V d
R
O sc scp
V
I
= 35 V, T
J
= 25 °C
T
J
= 25 °C
1. 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.
Min.
Typ.
7.7
8
7.6
7.6
56
8
8
-0.8
52
2
16
0.45
2.2
Note: Minimum load current for regulation is 5 mA.
Max.
8.3
8.4
8.4
160
80
160
80
8
0.5
1 mV mA mA mV/°C
µV/V
O dB
V mΩ
A
A
Unit
V
V
V mV
DS0422 - Rev 36 page 15/55
L78
Electrical characteristics
Refer to the test circuits, T
J specified.
= 0 to 125 °C, V
I
= 14.5 V, I
O
= 500 mA, C
I
= 0.33 µF, C
O
= 0.1 µF unless otherwise
Table 13. Electrical characteristics of L7885C
Symbol
∆V
∆V
∆V
V
O
V
O
V
O
I
O
O
∆I
O d eN d
/∆T
SVR
Parameter
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Quiescent current change
Output voltage drift
Output noise voltage
Supply voltage rejection
Dropout voltage
Output resistance
Short circuit current
Short circuit peak current
Test conditions
T
J
= 25 °C
I
O
= 5 mA to 1 A, V
I
= 11 to 21.5 V
I
O
= 1 A, V
I
= 21.5 to 26 V, T
J
= 25 °C
V
I
= 11 to 27 V, T
J
= 25 °C
V
I
= 11.5 to 17.5 V, T
J
= 25 °C
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
I
O
= 250 to 750 mA, T
J
= 25 °C
T
J
= 25 °C
I
O
= 5 mA to 1 A
V
I
= 11 to 26 V
I
O
= 5 mA
B = 10 Hz to 100 kHz, T
J
= 25 °C
V
I
= 12 to 22 V, f = 120 Hz
I
O
= 1 A, T
J
= 25 °C f = 1 kHz
I
V d
R
O
I sc scp
V
I
= 35 V, T
J
= 25 °C
T
J
= 25 °C
1. 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.
Min.
Typ.
Max.
8.2
8.5
8.8
8.1
8.5
8.9
8.1
8.5
8.9
160
80
160
80
8
0.5
1
-0.8
55
56
2
16
0.45
2.2
Note: Minimum load current for regulation is 5 mA.
Unit
V
V
V mV mV mA mA mV/°C
µV/V
O dB
V mΩ
A
A
DS0422 - Rev 36 page 16/55
L78
Electrical characteristics
Refer to the test circuits, T
J specified.
= 0 to 125 °C, V
I
= 15 V, I
O
= 500 mA, C
I
= 0.33 µF, C
O
= 0.1 µF unless otherwise
Table 14. Electrical characteristics of L7809C
Symbol
∆V
∆V
∆V
V
O
V
O
V
O
I
O
O
∆I
O d d eN
SVR
/∆T
Parameter
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Quiescent current change
Output voltage drift
Output noise voltage
Supply voltage rejection
Dropout voltage
Output resistance
Short circuit current
Short circuit peak current
Test conditions
T
J
= 25 °C
I
O
= 5 mA to 1 A, V
I
= 11.5 to 22 V
I
O
= 1 A, V
I
= 22 to 26 V, T
J
= 25 °C
V
I
= 11.5 to 26 V, T
J
= 25 °C
V
I
= 12 to 18 V, T
J
= 25 °C
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
I
O
= 250 to 750 mA, T
J
= 25 °C
T
J
= 25 °C
I
O
= 5 mA to 1 A
V
I
= 11.5 to 26 V
I
O
= 5 mA
B = 10 Hz to 100 kHz, T
J
= 25 °C
V
I
= 12 to 23 V, f = 120 Hz
I
O
= 1 A, T
J
= 25 °C f = 1 kHz
I
I
V d
R
O sc scp
V
I
= 35 V, T
J
= 25 °C
T
J
= 25 °C
1. 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.
Min.
Typ.
8.64
9
8.55
8.55
55
9
9
-1
70
2
17
0.40
2.2
Note: Minimum load current for regulation is 5 mA.
8
0.5
1
90
180
90
Max.
9.36
9.45
9.45
180 mV mA mA mV/°C
µV/V
O dB
V mΩ
A
A
Unit
V
V
V mV
DS0422 - Rev 36 page 17/55
L78
Electrical characteristics
Refer to the test circuits, T
J specified.
= 0 to 125 °C, V
I
= 19 V, I
O
= 500 mA, C
I
= 0.33 µF, C
O
= 0.1 µF unless otherwise
Table 15. Electrical characteristics of L7812C
Symbol
∆V
O
∆V
∆V
V
O
V
O
V
O
I
O
∆I
O d d eN
SVR
/∆T
Parameter
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Quiescent current change
Output voltage drift
Output noise voltage
Supply voltage rejection
Dropout voltage
Output resistance
Short circuit current
Short circuit peak current
Test conditions
T
J
= 25 °C
I
O
= 5 mA to 1 A, V
I
= 14.5 to 25 V
I
O
= 1 A, V
I
= 25 to 27 V, T
J
= 25 °C
V
I
= 14.5 to 30 V, T
J
= 25 °C
V
I
= 16 to 22 V, T
J
= 25 °C
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
I
O
= 250 to 750 mA, T
J
= 25 °C
T
J
= 25 °C
I
O
= 5 mA to 1 A
V
I
= 14.5 to 30 V
I
O
= 5 mA
B = 10 Hz to 100 kHz, T
J
= 25 °C
V
I
= 15 to 25 V, f = 120 Hz
I
O
= 1 A, T
J
= 25 °C f = 1 kHz
I
I
V d
R
O sc scp
V
I
= 35 V, T
J
= 25 °C
T
J
= 25 °C
1. 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.
Min.
Typ.
11.5
12
11.4
11.4
55
12
12
-1
75
2
18
0.35
2.2
Note: Minimum load current for regulation is 5 mA.
Max.
12.5
12.6
12.6
240
120
240
120
8
0.5
1 mV mA mA mV/°C
µV/V
O dB
V mΩ
A
A
Unit
V
V
V mV
DS0422 - Rev 36 page 18/55
L78
Electrical characteristics
Refer to the test circuits, T
J specified.
= 0 to 125 °C, V
I
= 23 V, I
O
= 500 mA, C
I
= 0.33 µF, C
O
= 0.1 µF unless otherwise
Table 16. Electrical characteristics of L7815C
Symbol
∆V
∆V
∆V
V
O
V
O
V
O
I
O
O
∆I
O d eN d
/∆T
SVR
Parameter
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Quiescent current change
Output voltage drift
Output noise voltage
Supply voltage rejection
Dropout voltage
Output resistance
Short circuit current
Short circuit peak current
Test conditions
T
J
= 25 °C
I
O
= 5 mA to 1 A, V
I
= 17.5 to 28 V
I
O
= 1 A, V
I
= 28 to 30 V, T
J
= 25 °C
V
I
= 17.5 to 30 V, T
J
= 25 °C
V
I
= 20 to 26 V, T
J
= 25 °C
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
I
O
= 250 to 750 mA, T
J
= 25 °C
T
J
= 25 °C
I
O
= 5 mA to 1A
V
I
= 17.5 to 30 V
I
O
= 5 mA
B = 10 Hz to 100kHz, T
J
= 25 °C
V
I
= 18.5 to 28.5 V, f = 120 Hz
I
O
= 1 A, T
J
= 25 °C f = 1 kHz
I
V d
R
O
I sc scp
V
I
= 35 V, T
J
= 25 °C
T
J
= 25 °C
1. 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.
Min.
14.4
14.25
14.25
54
Note: Minimum load current for regulation is 5 mA.
2
19
0.23
2.2
Typ.
15
15
15
Max.
15.6
15.75
15.75
300
150
300
150
8
0.5
1
-1
90 mV mA mA mV/°C
µV/V
O dB
V mΩ
A
A
Unit
V
V
V mV
DS0422 - Rev 36 page 19/55
L78
Electrical characteristics
Refer to the test circuits, T
J specified.
= 0 to 125 °C, V
I
= 26 V, I
O
= 500 mA, C
I
= 0.33 µF, C
O
= 0.1 µF unless otherwise
Table 17. Electrical characteristics of L7818C
Symbol
∆V
O
∆V
∆V
V
O
V
O
V
O
I
O
∆I
O d d eN
SVR
/∆T
Parameter
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Quiescent current change
Output voltage drift
Output noise voltage
Supply voltage rejection
Dropout voltage
Output resistance
Short circuit current
Short circuit peak current
Test conditions
T
J
= 25 °C
I
O
= 5 mA to 1 A, V
I
= 21 to 31 V
I
O
= 1 A, V
I
= 31 to 33 V, T
J
= 25 °C
V
I
= 21 to 33 V, T
J
= 25 °C
V
I
= 24 to 30 V, T
J
= 25 °C
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
I
O
= 250 to 750 mA, T
J
= 25 °C
T
J
= 25 °C
I
O
= 5 mA to 1 A
V
I
= 21 to 33 V
I
O
= 5 mA
B = 10 Hz to 100 kHz, T
J
= 25 °C
V
I
= 22 to 32 V, f = 120 Hz
I
O
= 1 A, T
J
= 25 °C f = 1 kHz
I
I
V d
R
O sc scp
V
I
= 35 V, T
J
= 25 °C
T
J
= 25 °C
1. 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.
Min.
Typ.
17.3
18
17.1
17.1
53
18
18
-1
110
2
22
0.20
2.1
Note: Minimum load current for regulation is 5 mA.
Max.
18.7
18.9
18.9
360
180
360
180
8
0.5
1 mV mA mA mV/°C
µV/V
O dB
V mΩ
A
A
Unit
V
V
V mV
DS0422 - Rev 36 page 20/55
L78
Electrical characteristics
Refer to the test circuits, T
J specified.
= 0 to 125 °C, V
I
= 33 V, I
O
= 500 mA, C
I
= 0.33 µF, C
O
= 0.1 µF unless otherwise
Table 18. Electrical characteristics of L7824C
Symbol
∆V
O
∆V
∆V
V
O
V
O
V
O
I
O
∆I
O d d eN
SVR
/∆T
Parameter
Output voltage
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Quiescent current change
Output voltage drift
Output noise voltage
Supply voltage rejection
Dropout voltage
Output resistance
Short circuit current
Short circuit peak current
Test conditions
T
J
= 25 °C
I
O
= 5 mA to 1 A, V
I
= 27 to 37 V
I
O
= 1 A, V
I
= 37 to 38 V, T
J
= 25 °C
V
I
= 27 to 38 V, T
J
= 25 °C
V
I
= 30 to 36 V, T
J
= 25 °C
I
O
= 5 mA to 1.5 A, T
J
= 25 °C
I
O
= 250 to 750 mA, T
J
= 25 °C
T
J
= 25 °C
I
O
= 5 mA to 1 A
V
I
= 27 to 38 V
I
O
= 5 mA
B = 10 Hz to 100 kHz, T
J
= 25 °C
V
I
= 28 to 38 V, f = 120 Hz
I
O
= 1 A, T
J
= 25 °C f = 1 kHz
I
I
V d
R
O sc scp
V
I
= 35 V, T
J
= 25° C
T
J
= 25 °C
1. 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.
Min.
Typ.
23 24
22.8
22.8
50
24
24
-1.5
170
2
28
0.15
2.1
Note: Minimum load current for regulation is 5 mA.
Max.
25
25.2
25.2
480
240
480
240
8
0.5
1 mV mA mA mV/°C
µV/V
O dB
V mΩ
A
A
Unit
V
V
V mV
DS0422 - Rev 36 page 21/55
L78
Application information
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 shortcircuit 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 14. 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 9. 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.
GAMG220920161007MT
DS0422 - Rev 36 page 22/55
DS0422 - Rev 36
L78
Design consideration
Figure 10. Current regulator
I
O
= V
XX
/R
1
+I d
Figure 11. Circuit for increasing output voltage
GAMG220920161008MT
I
R1
≥
5 I d
V
O
= V
XX
(1+R
2
/R
1
)+ I d
R
2
Figure 12. Adjustable output regulator (7 to 30 V)
GAMG220920161009MT
GAMG220920161010MT page 23/55
DS0422 - Rev 36
L78
Design consideration
Figure 13. 0.5 to 10 V regulator
V
O
=V
XX
R
4
/R
1
GAMG220920161011MT
Figure 14. High current voltage regulator
R
1
V
= ______________
I
REQ
-(I
Q1
/b
Q1
)
I
O
= I
REG
+ Q
1
(I
REG
_ ____
R
1
_)
Figure 15. High output current with short circuit protection
GAMG220920161012MT
R
SC
= V
BEQ2
/I
SC
GAMG220920161013MT page 24/55
Note: * Against potential latch-up problems.
DS0422 - Rev 36
Figure 16. Tracking voltage regulator
L78
Design consideration
Figure 17. Split power supply (± 15 V - 1 A)
GAMG220920161014MT
GAMG220920161015MT page 25/55
DS0422 - Rev 36
Figure 18. Negative output voltage circuit
L78
Design consideration
Figure 19. Switching regulator
GAMG220920161016MT
Figure 20. High input voltage circuit (configuration 1)
GAMG220920161017MT
V
IN
= V
I
- (V
Z
+ V
BE
)
GAMG220920161018MT page 26/55
DS0422 - Rev 36
Figure 21. High input voltage circuit (configuration 2)
L78
Design consideration
Figure 22. High input and output voltage
GAMG220920161019MT
V
O
= V
XX
+ V
Z1
Figure 23. Reducing power dissipation with dropping resistor
GAMG220920161020MT
V
R = __ ___
-V -V
____ ___ ____ ____
I
O(max)
+I d(max)
GAMG220920161021MT page 27/55
Figure 24. Remote shutdown
L78
Design consideration
Figure 25. Power AM modulator (unity voltage gain, I
O
≤ 0.5)
GAMG220920161022MT
Note:
GAMG220920161023MT
The circuit performs well up to 100 kHz.
Figure 26. Adjustable output voltage with temperature compensation
V
O
= V
XX
(1+R
2
/R
1
) + V
BE
Note:
GAMG220920161024MT
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
.
DS0422 - Rev 36 page 28/55
Figure 27. Light controllers (V
O(min)
= V
XX
+ V
BE
)
L78
Design consideration
V
O
falls when the light goes up V
O
rises when the light goes up
GAMG220920161025MT
Figure 28. Protection against input short-circuit with high capacitance loads
Note:
GAMG220920161026MT
Application with high capacitance loads and an output voltage greater than 6 volts need an external diode (see
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.
DS0422 - Rev 36 page 29/55
L78
Typical performance
7
Typical performance
Figure 29. Dropout voltage vs junction temperature
V
I
-V
(V) o
L78XX
2
I
O
= 1 A
1.5
1
0.5
DROPOUT CONDITIONS
∆V
O
= 5% of V
O
Figure 30. Peak output current vs input/output differential voltage
Io(A)
2.5
L7805
2
Tj = 55 °C
Tj = 0 °C
1.5
1
Tj = 125 °C
Tj
= 150
°C
Tj = 25 °C
0.5
0
-75 -50 -25 0 25 50 75 100 125 T j
(°C)
GAMG200920161325MT
0 5 10 15 20 25
Vi-V
O
(V)
GAMG200920161324MT
40
20
0
10
Figure 31. Supply voltage rejection vs frequency
SVR
(dB)
L7805
80
60
10 2
Vi = 8 V to 18 V
Vo = 5 V
Io = 500 mA
Tj = 25 °C
10 3 10 4 f (Hz)
GAMG200920161322MT
Figure 32. Output voltage vs junction temperature
Vo
(V)
12.1
12.0
L7812
Vi = 19 V
Vo = 12 V
Io = 20 mA
11.9
11.8
-75 -50 -25 0 25 50 75 100 125
T j
(°C)
GAMG200920161323MT
DS0422 - Rev 36 page 30/55
L78
Typical performance
Zo
(Ω)
Figure 33. Output impedance vs frequency
L7805
10
Vi = 10 V
Vo = 5 V
Tamb = 25 °C
CL = 0 µF
Io = 20 mA
1
Figure 34. Quiescent current vs junction temp.
I d
(mA)
4.4
4.2
Vi = 10 V
Vo = 5 V
Io = 500 mA
10 -1
Io = 500 mA
4.0
3.8
L7805
3.6
-75 -50 -25 0 25 50 75 100 125
T j
(°C)
GAMG200920161321MT
10 -2
10 10 2 10 3
10 4 10 5 f (Hz)
GAMG200920161320MT
∆Vo
(V)
Figure 35. Load transient response
Vi = 10 V
Vo = 5 V
LOAD CURRENT
L7805
1
0
-1
AUTPUT VOLTAGE
DEVIATION
0 10 20 30 40 50
T (µs)
GAMG200920161326MT
Figure 36. Line transient response
∆Vo
(mV)
INPUT VOLTAGE L7805
20
-10
-20
0
10
0
OUTPUT VOLTAGE
DEVIATION
I
O
= 500 mA
Vo = 5 V
2 4 6 8 10
T (µs)
GAMG200920161328MT
10
5
Vi
(V)
15
0
Figure 37. Quiescent current vs. input voltage
Id(mA)
5.0
V
O
= 5 V
Io = 20 mA
Tj = 25 °C
4.0
L7805
3.0
5 10 15 20 25 30
V i
(V)
GAMG200920161329MT
DS0422 - Rev 36 page 31/55
8
L78
Package information
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.
DS0422 - Rev 36 page 32/55
8.1
L78
TO-220 (dual gauge) package information
TO-220 (dual gauge) package information
Figure 38. TO-220 (dual gauge) package outline
DS0422 - Rev 36
0015988_21_Type A page 33/55
DS0422 - Rev 36
Dim.
E e e1
F
H1
J1
L
L1
L20
L30
∅ P
Q b1 c
A b
D
D1
L78
TO-220 (dual gauge) package information
Table 19. TO-220 (dual gauge) mechanical data mm
Typ.
Min.
4.40
0.61
1.14
0.48
15.25
1.27
10
2.40
4.95
1.23
6.20
2.40
13
3.50
16.40
28.90
3.75
2.65
3.85
2.95
10.40
2.70
5.15
1.32
6.60
2.72
14
3.93
Max.
4.60
0.88
1.70
0.70
15.75
page 34/55
8.2
L78
TO-220 (single gauge) package information
TO-220 (single gauge) package information
Figure 39. TO-220 (single gauge) package outline
DS0422 - Rev 36
8174627_5 page 35/55
DS0422 - Rev 36
Dim.
e e1
F
H1
J1 b1 c
D
E
A b
L
L1
L20
L30
∅ P
Q
L78
TO-220 (single gauge) package information
Table 20. TO-220 (single gauge) mechanical data mm
Typ.
Min.
4.40
0.61
1.14
0.48
15.25
10.00
2.40
4.95
0.51
6.20
2.40
13.00
3.50
16.40
28.90
3.75
2.65
Max.
4.60
0.88
1.70
0.70
15.75
10.40
2.70
5.15
0.60
6.60
2.72
14.00
3.93
3.85
2.95
page 36/55
8.3
TO-220FP type A package information
Figure 40. TO-220FP package outline
L78
TO-220FP type A package information
DS0422 - Rev 36
7012510_type_A page 37/55
8.4
L78
TO-220 (single/dual) packing information
Dim.
F2
G
G1
H
L2
L3
L4
L5
L6
L7
Dia
D
E
A
B
F
F1
Table 21. TO-220FP package mechanical data mm
Typ.
Min.
4.4
2.5
2.5
0.45
0.75
1.15
1.15
4.95
2.4
10
16
28.6
9.8
2.9
15.9
9
3
TO-220 (single/dual) packing information
Figure 41. Tube for TO-220 (dual gauge) (mm.)
Max.
4.6
2.7
2.75
0.7
1
1.70
1.70
5.2
2.7
10.4
30.6
10.6
3.6
16.4
9.3
3.2
DS0422 - Rev 36 page 38/55
Figure 42. Tube for TO-220 (single gauge) (mm.)
L78
DPAK package information
8.5
DPAK package information
Figure 43. DPAK package outline
DS0422 - Rev 36
0068772_A_21 page 39/55
DS0422 - Rev 36
Dim.
c2
D
D1
E
E1 e e1
A
A1
A2 b b4 c
H
L
(L1)
L2
L4
R
V2
Table 22. DPAK mechanical data mm
Typ.
0.64
5.20
0.45
0.48
6.00
Min.
2.20
0.90
0.03
5.10
6.40
4.70
2.28
4.40
9.35
1.00
2.80
0.80
0.60
0.20
0°
L78
DPAK package information
4.60
10.10
1.50
1.00
8°
0.90
5.40
0.60
0.60
6.20
Max.
2.40
1.10
0.23
6.60
page 40/55
DS0422 - Rev 36
L78
DPAK package information
Figure 44. DPAK recommended footprint (dimensions are in mm)
Footprint_0068772 page 41/55
8.6
L78
D²PAK (SMD 2L STD-ST) type A package information
D²PAK (SMD 2L STD-ST) type A package information
Figure 45. D²PAK (SMD 2L STD-ST) type A package outline
DS0422 - Rev 36
0079457_22_type A page 42/55
DS0422 - Rev 36
Dim.
e1
H
J1
L
L1
L2
R
V2
D
D1
D2
E
E1
E2 e
A
A1 b b2 c c2
L78
D²PAK (SMD 2L STD-ST) type A package information
Table 23. D²PAK (SMD 2L STD-ST) mechanical data mm
Typ.
1.14
0.45
1.23
8.95
7.50
1.10
10
8.50
6.85
Min.
4.40
0.03
0.70
7.75
1.30
8.70
7.05
2.54
4.88
15
2.49
2.29
1.27
1.30
0.4
0°
5.28
15.85
2.69
2.79
1.40
1.75
8°
1.70
0.60
1.36
9.35
8.00
Max.
4.60
0.23
0.93
1.50
10.40
8.90
7.25
page 43/55
8.7
L78
D²PAK (ASE) type B package information
D²PAK (ASE) type B package information
Figure 46. D²PAK (ASE subcon) type B package outline
DS0422 - Rev 36
0079457_23_type B page 44/55
DS0422 - Rev 36
Dim.
c c1 c2
D
D1
E
E1
A
A1 b b1 b2 b3
L1
L2
L3
L4 e
H
L
L78
D²PAK (ASE) type B package information
Table 24. D²PAK (ASE) type B mechanical data mm
Typ.
0.51
1.17
1.36
0.38
0.38
Min.
4.36
0
0.70
1.19
8.60
6.90
10.15
8.10
2.54
15.00
1.90
4.78
0.25
15.60
2.50
1.65
1.78
5.28
Max.
4.56
0.25
0.90
0.89
1.37
1.46
0.694
0.534
1.34
9.00
7.50
10.55
8.70
page 45/55
DS0422 - Rev 36
L78
D²PAK (ASE) type B package information
Figure 47. D²PAK recommended footprint (dimensions are in mm)
Footprint_0079457 page 46/55
8.8
D²PAK and DPAK packing information
Figure 48. Tape outline
L78
D²PAK and DPAK packing information
DS0422 - Rev 36 page 47/55
DS0422 - Rev 36
A
L78
D²PAK and DPAK packing information
D
B
Full radius
Figure 49. Reel outline
T
40mm min. access hole at slot location
Tape slot in core for tape start
2.5mm min.width
C
N
G measured at hub
Dim.
E
F
K0
P0
P1
P2
R
T
W
A0
B0
D
D1
Min.
1.65
11.4
4.8
3.9
11.9
1.9
50
0.25
23.7
10.5
15.7
1.5
1.59
Tape
Table 25. D²PAK tape and reel mechanical data
Reel mm
Dim.
Max.
10.7
15.9
1.6
1.61
1.85
11.6
5.0
4.1
12.1
2.1
C
D
A
B
G
N
T
Base quantity
Bulk quantity
Min.
1.5
12.8
20.2
24.4
100
0.35
24.3
mm
AM06038v1
Max.
330
13.2
26.4
30.4
1000
1000 page 48/55
Dim.
E
F
K0
P0
P1
P2
R
T
W
A0
B0
B1
D
D1
L78
D²PAK and DPAK packing information
Tape
Table 26. DPAK tape and reel mechanical data
Reel mm
Min.
6.8
10.4
1.5
1.5
1.65
7.4
2.55
3.9
7.9
1.9
40
0.25
15.7
1.85
7.6
2.75
4.1
8.1
2.1
Max.
7
10.6
12.1
1.6
0.35
16.3
Dim.
N
T
D
G
A
B
C
Base qty.
Bulk qty.
Min.
1.5
12.8
20.2
16.4
50 mm
Max.
330
13.2
18.4
22.4
2500
2500
DS0422 - Rev 36 page 49/55
L78
Ordering information
9
Ordering information
L7885C
L7809C
L7809AB
L7809AC
L7812C
L7812AB
L7812AC
L7815C
L7815AB
L7815AC
L7818C
L7824C
L7824AB
L7824AC
L7805C
L7805AB
L7805AC
L7806C
L7806AB
L7806AC
L7808C
L7808AB
L7808AC
Part number TO-220
(single gauge)
L7885CV
L7809CV
L7809ABV
L7809ACV
L7812CV
L7812ABV
L7812ACV
L7815CV
L7815ABV
L7815ACV
L7818CV
L7824CV
L7824ABV
L7824ACV
L7805CV
L7805ABV
L7805ACV
L7806CV
L7806ABV
L7806ACV
L7808CV
L7808ABV
L7808ACV
TO-220
(dual gauge)
L7805CV-DG
L7805ABV-DG
L7805ACV-DG
L7806CV-DG
L7806ABV-DG
L7806ACV-DG
L7808CV-DG
L7808ABV-DG
L7808ACV-DG
L7809CV-DG
L7809ABV-DG
L7812CV-DG
L7812ABV-DG
L7812ACV-DG
L7815CV-DG
L7815ABV-DG
L7815ACV-DG
L7818CV-DG
L7824CV-DG
L7824ABV-DG
L7824ACV-DG
Table 27. Order codes
Order codes
DPAK
L7805CDT-TR
D²PAK
L7805CD2T-TR
L7805ABD2T-TR
L7805ACD2T-TR
L7806CD2T-TR
L7806ABD2T-TR
L7808CD2T-TR
L7808ABD2T-TR
L7809CD2T-TR
L7809ABD2T-TR
L7812CD2T-TR
L7812ABD2T-TR
L7812ACD2T-TR
L7815CD2T-TR
L7815ABD2T-TR
L7815ACD2T-TR
L7824CD2T-TR
TO-220FP
L7805CP
L7805ABP
L7805ACP
L7809CP
L7812CP
L7815CP
L7824CP
Output voltages
12 V
12 V
15 V
15 V
15 V
8.5 V
9 V
9 V
9 V
12 V
18 V
24 V
24 V
24 V
6 V
6 V
8 V
8 V
8 V
5 V
5 V
5 V
6 V
DS0422 - Rev 36 page 50/55
L78
Revision history
Date
21-Jun-2004
03-Aug-2006
19-Jan-2007
31-May-2007
29-Aug-2007
11-Dec-2007
06-Feb-2008
18-Mar-2008
26-Jan-2010
04-Mar-2010
08-Sep-2010
23-Nov-2010
16-Sep-2011
30-Nov-2011
08-Feb-2012
27-Mar-2012
27-Apr-2012
10-May-2012
19-Sep-2012
12-Mar-2013
04-Mar-2014
26-Feb-2016
28-Nov-2016
25-May-2018
17-Sep-2018
33
34
35
36
19
20
21
22
23
24
25
26
27
28
Revision
12
13
14
15
16
17
18
29
30
31
32
Table 28. Document revision history
Changes
Document updating.
Order codes has been updated and new template.
D²PAK mechanical data has been updated and add footprint data.
Order codes has been updated.
Added Table 1 in cover page.
Modified: Table 27.
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.
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.
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.
Added notes Figure 38 on page 38.
Modified Table 27 on page 58.
Added: TJ = 25 °C test condition in DVO on Table 3, 4, 5, 6, 7, 8 and Table 9.
Modified title on page 1.
Added: order codes L7805CV-DG, L7806CV-DG, L7808ABV-DG, L7812CV-DG and L7815CV-DG
Table 27 on page 58.
Added: order codes L7805ACV-DG, L7805ABV-DG, L7806ABV-DG, L7808CV-DG, L7809CV-DG,
L7812ACV-DG, L7818CV-DG, L7824CV-DG Table 27 on page 58.
Added: order codes L7812ABV-DG, L7815ABV-DG Table 27 on page 58.
Modified: VI = 10.4 to 23 V ==> VI = 11.4 to 23 V test conditon value Line regulation Table 6 on page 13.
Added: order codes L7806ACV-DG, L7808ACV-DG, L7815ACV-DG, L7824ABV-DG and
L7824ACV-DG Table 27 on page 58.
Modified load regulation units from V to mV in Table 3 to Table 9.
Modified: VO output voltage at 25 °C min. value 14.4 V Table 16 on page 23.
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.
Updated Section 8: Package information.
Minor text changes.
Updated Section 9: "Ordering information".
Minor text changes.
Updated D²PAK package Section 8.7 D²PAK (ASE) type B package information.
Updated
Figure 29. Dropout voltage vs junction temperature .
DS0422 - Rev 36 page 51/55
L78
Contents
Contents
DS0422 - Rev 36 page 52/55
L78
List of tables
List of tables
DS0422 - Rev 36 page 53/55
L78
List of figures
List of figures
Figure 25. Power AM modulator (unity voltage gain, I
≤ 0.5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 27. Light controllers (V
DS0422 - Rev 36 page 54/55
L78
IMPORTANT NOTICE – PLEASE READ CAREFULLY
STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and 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 acknowledgement.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of
Purchasers’ products.
No license, express or implied, to any intellectual property right is granted by ST herein.
Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners.
Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2018 STMicroelectronics – All rights reserved
DS0422 - Rev 36 page 55/55
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