L78L
Datasheet
Positive voltage regulators
Features
•
•
TO-92
SO-8
SOT-89
•
•
•
Output current up to 100 mA
Output voltages of 3.3; 5; 6; 8; 9; 10; 12; 15; 18; 24 V thermal overload
protection
Short-circuit protection
No external components are required
Available in either ± 4% (A) or ± 8% (C) selection
Description
The L78L series of three-terminal positive regulators employ internal current limiting
and thermal shutdown, making them essentially indestructible. If adequate heat-sink
is provided, they can deliver up to 100 mA output current. They are intended
as fixed voltage regulators in a wide range of applications including local or oncard regulation for elimination of noise and distribution problems associated with
single-point regulation. In addition, they can be used with power pass elements to
make high-current voltage regulators. The L78L series used as Zener diode/resistor
combination replacement, offers e improvement along with lower quiescent current
and lower noise.
Maturity status link
L78L
DS0424 - Rev 28 - April 2021
For further information contact your local STMicroelectronics sales office.
www.st.com
L78L
Diagram
1
Diagram
Figure 1. Schematic diagram
AMG160520161300MT
DS0424 - Rev 28
page 2/40
L78L
Pin configuration
2
Pin configuration
Figure 2. Pin connection (top view, bottom view for TO-92)
AMG160520161301MT
Figure 3. Test circuits
AMG160520161302MT
DS0424 - Rev 28
page 3/40
L78L
Maximum ratings
3
Maximum ratings
Table 1. Absolute maximum ratings
Symbol
VI
Parameter
DC Input voltage
IO
Output current
PD
Power dissipation
TSTG
Storage temperature range
TOP
Operating junction temperature range
Value
VO = 3.3 to 9 V
30
VO = 12 to 15 V
35
VO = 18 to 24 V
40
Unit
V
100
mA
Internally limited (1)
mW
-65 to 150
°C
for L78LxxAC / L78LxxC
0 to 125
for L78LxxAB
-40 to 125
°C
1. Our SO-8 package used for voltage regulators is modified internally to have pins 2, 3, 6 and 7 electrically
communed to the die attach flag. This particular frame decreases the total thermal resistance of the
package and increases its ability to dissipate power when an appropriate area of copper on the printed
circuit board is available for heat-sinking. The external dimensions are the same as for the standard SO-8.
Table 2. Thermal data
Symbol
Parameter
RthJC
Thermal resistance junction-case (max)
RthJA
Thermal resistance junction-ambient (max)
SO-8
TO-92
20
55 (1)
200
SOT-89
Unit
15
°C/W
55 (1)
°C/W
1. Considering 6 cm² of copper Board heat-sink.
DS0424 - Rev 28
page 4/40
L78L
Electrical characteristics
4
Electrical characteristics
Table 3. Electrical characteristics of L78L33C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 8.3 V, IO = 40 mA, CI = 0.33
µF, CO = 0.1 µF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
3.036
3.3
3.564
V
VO
Output voltage
IO = 1 to 40 mA, VI = 5.3 to 20 V
2.97
3.63
IO = 1 to 70 mA, VI = 8.3 V
2.97
3.63
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
V
VI = 5.4 to 20 V, TJ = 25 °C
150
VI = 6.3 to 20 V, TJ = 25 °C
100
IO = 1 to 100 mA, TJ = 25 °C
60
IO = 1 to 40 mA, TJ = 25 °C
30
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
IO = 1 to 40 mA
0.2
VI = 6.3 to 20 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 6.3 to 16.3 V, f = 120 Hz
41
IO = 40 mA, TJ = 25 °C
mV
mV
mA
40
µV
49
dB
2
V
Table 4. Electrical characteristics of L78L05C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 10 V, IO = 40 mA, CI = 0.33
µF, CO = 0.1 µF unless otherwise specified
Symbol
Parameter
VO
Output voltage
VO
Output voltage
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
DS0424 - Rev 28
Test conditions
Min.
Typ.
Max.
TJ = 25 °C
4.6
IO = 1 to 40 mA, VI = 7 to 20 V
4.5
5.5
IO = 1 to 70 mA, VI = 10 V
4.5
5.5
5
5.4
Unit
V
V
VI = 8.5 to 20 V, TJ = 25 °C
200
VI = 9 to 20 V, TJ = 25 °C
150
IO = 1 to 100 mA, TJ = 25 °C
60
IO = 1 to 40 mA, TJ = 25 °C
30
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
IO = 1 to 40 mA
0.2
VI = 8 to 20 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 9 to 20 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
40
mV
mV
mA
40
µV
49
dB
2
V
page 5/40
L78L
Electrical characteristics
Table 5. Electrical characteristics of L78L08C - Refer to the test circuits, TJ = 0 to 125 °C,VI = 14 V, IO = 40 mA, CI = 0.33
µF, CO = 0.1 µF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
7.36
8
8.64
V
VO
Output voltage
IO = 1 to 40 mA, VI = 8.5 to 20 V
7.2
8.8
IO = 1 to 70 mA, VI = 12 V
7.2
8.8
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
V
VI = 10.5 to 20 V, TJ = 25 °C
200
VI = 11 to 20 V, TJ = 25 °C
150
IO = 1 to 100 mA, TJ = 25 °C
80
IO = 1 to 40 mA, TJ = 25 °C
40
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
IO = 1 to 40 mA
0.2
VI = 8 to 20 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 9 to 20 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
36
mV
mV
mA
60
µV
45
dB
1.7
V
Table 6. Electrical characteristics of L78L09C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 15 V, IO = 40 mA, CI = 0.33
µF, CO = 0.1 µF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
8.28
9
9.72
V
VO
Output voltage
IO = 1 to 40 mA, VI = 11.5 to 23 V
8.1
9.9
IO = 1 to 70 mA, VI = 15 V
8.1
9.9
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
DS0424 - Rev 28
V
VI = 11.5 to 23 V, TJ = 25 °C
250
VI = 12 to 23 V, TJ = 25 °C
200
IO = 1 to 100 mA, TJ = 25 °C
80
IO = 1 to 40 mA, TJ = 25 °C
40
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
IO = 1 to 40 mA
0.2
VI = 12 to 23 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 12 to 23 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
36
mV
mV
mA
70
µV
44
dB
1.7
V
page 6/40
L78L
Electrical characteristics
Table 7. Electrical characteristics of L78L10C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 16 V, IO = 40 mA, CI = 0.33
µF, CO = 0.1 µF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
9.2
10
10.8
V
VO
Output voltage
IO = 1 to 40 mA, VI = 12.5 to 23 V
9
11
IO = 1 to 70 mA, VI = 16 V
9
11
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
V
VI = 12.5 to 23 V, TJ = 25 °C
230
VI = 13 to 23 V, TJ = 25 °C
170
IO = 1 to 100 mA, TJ = 25 °C
80
IO = 1 to 40 mA, TJ = 25 °C
40
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
IO = 1 to 40 mA
0.1
VI = 13 to 23 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 14 to 23 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
37
mV
mV
mA
60
µV
45
dB
1.7
V
Table 8. Electrical characteristics of L78L12C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 19 V, IO = 40 mA, CI = 0.33
µF, CO = 0.1 µF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
11.1
12
12.9
V
VO
Output voltage
IO = 1 to 40 mA, VI = 14.5 to 27 V
10.8
13.2
IO = 1 to 70 mA, VI = 19 V
10.8
13.2
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
DS0424 - Rev 28
V
VI = 14.5 to 27 V, TJ = 25 °C
250
VI = 16 to 27 V, TJ = 25 °C
200
IO = 1 to 100 mA, TJ = 25 °C
100
IO = 1 to 40 mA, TJ = 25 °C
50
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
IO = 1 to 40 mA
0.2
VI = 16 to 27 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 15 to 25 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
36
mV
mV
mA
80
µV
42
dB
1.7
V
page 7/40
L78L
Electrical characteristics
Table 9. Electrical characteristics of L78L15C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 23 V, IO = 40 mA, CI = 0.33
µF, CO = 0.1 µF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
13.8
15
16.2
V
VO
Output voltage
IO = 1 to 40 mA, VI = 17.5 to 30 V
13.5
16.5
IO = 1 to 70 mA, VI = 23 V
13.5
16.5
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
V
VI = 17.5 to 30 V, TJ = 25 °C
300
VI = 20 to 30 V, TJ = 25 °C
250
IO = 1 to 100 mA, TJ = 25 °C
150
IO = 1 to 40 mA, TJ = 25 °C
75
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
IO = 1 to 40 mA
0.2
VI = 20 to 30 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 18.5 to 28.5 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
33
mV
mV
mA
90
µV
39
dB
1.7
V
Table 10. Electrical characteristics of L78L18C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 27 V, IO = 40 mA, CI =
0.33 µF, CO = 0.1 µF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
16.6
18
19.4
V
VO
Output voltage
IO = 1 to 40 mA, VI = 22 to 33 V
16.2
19.8
IO = 1 to 70 mA, VI = 27 V
16.2
19.8
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
DS0424 - Rev 28
V
VI = 22 to 33 V, TJ = 25 °C
320
VI = 22 to 33 V, TJ = 25 °C
270
IO = 1 to 100 mA, TJ = 25 °C
170
IO = 1 to 40 mA, TJ = 25 °C
85
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
IO = 1 to 40 mA
0.2
VI = 23 to 33 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 23 to 33 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
32
mV
mV
mA
120
µV
38
dB
1.7
V
page 8/40
L78L
Electrical characteristics
Table 11. Electrical characteristics of L78L24C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 33 V, IO = 40 mA, CI =
0.33 µF, CO = 0.1 µF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
22.1
24
25.9
V
VO
Output voltage
IO = 1 to 40 mA, VI = 27 to 38 V
21.6
26.4
IO = 1 to 70 mA, VI = 33 V
21.6
26.4
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
V
VI = 27 to 38 V, TJ = 25 °C
350
VI = 28 to 38 V, TJ = 25 °C
300
IO = 1 to 100 mA, TJ = 25 °C
200
IO = 1 to 40 mA, TJ = 25 °C
100
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
IO = 1 to 40 mA
0.2
VI = 28 to 38 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 29 to 35 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
30
mV
mV
mA
200
µV
37
dB
1.7
V
Table 12. Electrical characteristics of L78L33AB and L78L33AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40
to 125 °C (AB),VI = 8.3 V, IO = 40mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
3.168
3.3
3.432
V
VO
Output voltage
IO = 1 to 40 mA, VI = 5.3 to 20 V
3.135
3.465
IO = 1 to 70 mA, VI = 8.3 V
3.135
3.465
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
DS0424 - Rev 28
V
VI = 5.4 to 20 V, TJ = 25 °C
150
VI = 6.3 to 20 V, TJ = 25 °C
100
IO = 1 to 100 mA, TJ = 25 °C
60
IO = 1 to 40 mA, TJ = 25 °C
30
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
IO = 1 to 40 mA
0.1
VI = 6.3 to 20 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 6.3 to 16.3 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
41
mV
mV
mA
40
µV
49
dB
2
V
page 9/40
L78L
Electrical characteristics
Table 13. Electrical characteristics of L78L05AB and L78L05AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40
to 125 °C (AB), VI = 10 V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
4.8
5
5.2
V
VO
Output voltage
IO = 1 to 40 mA, VI = 7 to 20 V
4.75
5.25
IO = 1 to 70 mA, VI = 10 V
4.75
5.25
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
V
VI = 7.3 to 20 V, TJ = 25 °C
150
VI = 8 to 20 V, TJ = 25 °C
100
IO = 1 to 100 mA, TJ = 25 °C
60
IO = 1 to 40 mA, TJ = 25 °C
30
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
IO = 1 to 40 mA
0.1
VI = 8 to 20 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 8 to 18 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
41
mV
mV
mA
40
µV
49
dB
2
V
Table 14. Electrical characteristics of L78L06AB and L78L06AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40
to 125 °C (AB), VI = 12 V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
5.76
6
6.24
V
VO
Output voltage
IO = 1 to 40 mA, VI = 8.5 to 20 V
5.7
6.3
IO = 1 to 70 mA, VI = 12 V
5.7
6.3
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
DS0424 - Rev 28
V
VI = 8.5 to 20 V, TJ = 25 °C
150
VI = 9 to 20 V, TJ = 25 °C
100
IO = 1 to 100 mA, TJ = 25 °C
60
IO = 1 to 40 mA, TJ = 25 °C
30
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
IO = 1 to 40 mA
0.1
VI = 9 to 20 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 9 to 20 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
39
mV
mV
mA
50
µV
46
dB
1.7
V
page 10/40
L78L
Electrical characteristics
Table 15. Electrical characteristics of L78L08AB and L78L08AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40
to 125 °C (AB), VI = 14 V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
7.68
8
8.32
V
VO
Output voltage
IO = 1 to 40 mA, VI = 10.5 to 23 V
7.6
8.4
IO = 1 to 70 mA, VI = 14 V
7.6
8.4
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
V
VI = 10.5 to 23 V, TJ = 25 °C
175
VI = 11 to 23 V, TJ = 25 °C
125
IO = 1 to 100 mA, TJ = 25 °C
80
IO = 1 to 40 mA, TJ = 25 °C
40
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
IO = 1 to 40 mA
0.1
VI = 11 to 23 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 12 to 23 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
37
mV
mV
mA
60
µV
45
dB
1.7
V
Table 16. Electrical characteristics of L78L09AB and L78L09AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40
to 125 °C (AB), VI =15 V, IO= 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
8.64
9
9.36
V
VO
Output voltage
IO = 1 to 40 mA, VI = 11.5 to 23 V
8.55
9.45
IO = 1 to 70 mA, VI = 15 V
8.55
9.45
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
DS0424 - Rev 28
V
VI = 11.5 to 23 V, TJ = 25 °C
225
VI = 12 to 23 V, TJ = 25 °C
150
IO = 1 to 100 mA, TJ = 25 °C
80
IO = 1 to 40 mA, TJ = 25 °C
40
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
IO = 1 to 40 mA
0.1
VI = 12 to 23 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 12 to 23 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
37
mV
mV
mA
70
µV
44
dB
1.7
V
page 11/40
L78L
Electrical characteristics
Table 17. Electrical characteristics of L78L10AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to 125 °C (AB),
VI= 16 V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
9.6
10
10.4
V
VO
Output voltage
IO = 1 to 40 mA, VI = 12.5 to 23 V
9.5
10.5
IO = 1 to 70 mA, VI = 16 V
9.5
10.5
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
V
VI = 12.5 to 23 V, TJ = 25 °C
230
VI = 13 to 23 V, TJ = 25 °C
170
IO = 1 to 100 mA, TJ = 25 °C
80
IO = 1 to 40 mA, TJ = 25 °C
40
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
IO = 1 to 40 mA
0.1
VI = 13 to 23 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 14 to 23 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
37
mV
mV
mA
60
µV
45
dB
1.7
V
Table 18. Electrical characteristics of L78L12AB and L78L12AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40
to 125 °C (AB), VI =19 V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
11.5
12
12.5
V
VO
Output voltage
IO = 1 to 40 mA, VI = 14.5 to 27 V
11.4
12.6
IO = 1 to 70 mA, VI = 19 V
11.4
12.6
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
DS0424 - Rev 28
V
VI = 14.5 to 27 V, TJ = 25 °C
250
VI = 16 to 27 V, TJ = 25 °C
200
IO = 1 to 100 mA, TJ = 25 °C
100
IO = 1 to 40 mA, TJ = 25 °C
50
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
IO = 1 to 40 mA
0.1
VI = 16 to 27 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 15 to 25 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
37
mV
mV
mA
80
µV
42
dB
1.7
V
page 12/40
L78L
Electrical characteristics
Table 19. Electrical characteristics of L78L15AB and L78L15AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40
to 125 °C (AB), VI = 23 V,IO= 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
14.4
15
15.6
V
VO
Output voltage
IO = 1 to 40 mA, VI = 17.5 to 30 V
14.25
15.75
IO = 1 to 70 mA, VI = 23 V
14.25
15.75
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
V
VI = 17.5 to 30 V, TJ = 25 °C
300
VI = 20 to 30 V, TJ = 25 °C
250
IO = 1 to 100 mA, TJ = 25 °C
150
IO = 1 to 40 mA, TJ = 25 °C
75
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
IO = 1 to 40 mA
0.1
VI = 20 to 30 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 18.5 to 28.5 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
34
mV
mV
mA
90
µV
39
dB
1.7
V
Table 20. Electrical characteristics of L78L18AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to 125 °C
(AB),VI = 27 V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
17.3
18
18.7
V
VO
Output voltage
IO = 1 to 40 mA, VI = 22 to 33 V
17.1
18.9
IO = 1 to 70 mA, VI = 27 V
17.1
18.9
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
DS0424 - Rev 28
V
VI = 22 to 33 V, TJ = 25 °C
320
VI = 22 to 33 V, TJ = 25 °C
270
IO = 1 to 100 mA, TJ = 25 °C
170
IO = 1 to 40 mA, TJ = 25 °C
85
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
IO = 1 to 40 mA
0.1
VI = 23 to 33 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 23 to 33 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
33
mV
mV
mA
120
µV
38
dB
1.7
V
page 13/40
L78L
Electrical characteristics
Table 21. Electrical characteristics of L78L24AB and L78L24AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40
to 125 °C (AB),VI = 33 V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
23
24
25
V
VO
Output voltage
IO = 1 to 40 mA, VI = 27 to 38 V
22.8
25.2
IO = 1 to 70 mA, VI = 33 V
22.8
25.2
∆VO
Line regulation
∆VO
Load regulation
Id
Quiescent current
∆Id
Quiescent current change
eN
Output noise voltage
SVR
Supply voltage rejection
Vd
Dropout voltage
DS0424 - Rev 28
V
VI = 27 to 38 V, TJ = 25 °C
350
VI = 28 to 38 V, TJ = 25 °C
300
IO = 1 to 100 mA, TJ = 25 °C
200
IO = 1 to 40 mA, TJ = 25 °C
100
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
IO = 1 to 40 mA
0.1
VI = 28 to 38 V
1.5
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 29 to 33 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
31
mV
mV
mA
200
µV5y
37
dB
1.7
V
page 14/40
L78L
Typical performance
5
Typical performance
Figure 4. L78L05/12 output voltage vs. ambient
temperature
AMG160520161303MT
Figure 6. L78L05/12/24 thermal shutdown
AMG160520161305MT
DS0424 - Rev 28
Figure 5. L78L05/12/24 load characteristics
AMG160520161304MT
Figure 7. L78L05/12 quiescent current vs. output current
AMG160520161306MT
page 15/40
L78L
Typical performance
Figure 8. L78L05 quiescent current vs. input voltage
Figure 9. L78L05/12/24 output characteristics
AMG160520161307MT
Figure 10. L78L05/12/24 ripple rejection
AMG160520161308MT
Figure 11. L78L05 dropout characteristics
AMG160520161309MT
AMG160520161310MT
Figure 12. L78L short-circuit output current
AMG160520161311MT
DS0424 - Rev 28
page 16/40
L78L
Typical application
6
Typical application
Figure 13. High output current short-circuit protected
AMG160520161312MT
Figure 14. Outuput boost circuit
AMG160520161313MT
Figure 15. Current regulator
AMG160520161314MT
DS0424 - Rev 28
page 17/40
L78L
Typical application
Figure 16. Adjustable output regulator
AMG160520161315MT
DS0424 - Rev 28
page 18/40
L78L
Package information
7
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.
7.1
TO-92 package information
Figure 17. TO-92 package outline
0102782_E
Table 22. TO-92 mechanical data
Dim.
Min.
Typ.
Max.
A
4.32
4.95
b
0.36
0.51
D
4.45
4.95
E
3.30
3.94
e
2.41
2.67
e1
1.14
1.40
L
12.70
15.49
R
2.16
2.41
S1
0.92
1.52
W
0.41
0.56
V
DS0424 - Rev 28
mm
5°
page 19/40
L78L
TO-92 packing information
7.2
TO-92 packing information
Figure 18. TO-92 tape and reel outline
T
delta P
A1
T2
T1
delta H
H1
H
H0
d
W2
L
I1
W
W0
W1
F1
F2
D0
t
P2
P0
DS0424 - Rev 28
page 20/40
L78L
TO-92 packing information
Table 23. TO-92 tape and reel mechanical data
Dim.
mm
Min.
Typ.
A1
4.80
T
3.80
T1
1.60
T2
2.30
d
0.45
0.47
0.48
P0
12.50
12.70
12.90
P2
5.65
6.35
7.05
F1, F2
2.40
2.50
2.94
F3
4.98
5.08
5.48
delta H
-2.00
W
17.50
18.00
19.00
W0
5.5
6.00
6.5
W1
8.50
9.00
9.25
2.00
W2
0.50
H
18.50
21
H3
0.5
1
2
H0
15.50
16.00
18.8
25.0
27.0
4.00
4.20
H1
D0
DS0424 - Rev 28
Max.
3.80
t
0.90
L
11.00
I1
3.00
delta P
-1.00
Ø1
352
355
358
Ø2
28
30
32
u
44
47
50
1.00
page 21/40
L78L
TO-92 Ammopak packing information
7.3
TO-92 Ammopak packing information
Figure 19. TO-92 Ammopak tape and reel outline
T
A1
T2
H1
T1
delta H
H
H3
H0
d
L
W2
l1
W0 W
W1
F1 F2
F3
P2
D0
t
P0
0050910S_Rev_U
Table 24. TO-92 Ammopak tape and reel mechanical data
Dim.
mm
Min.
Typ.
A1
4.80
T
3.80
T1
1.60
T2
2.30
d
0.45
0.47
0.48
P0
12.50
12.70
12.90
P2
5.65
6.35
7.05
F1, F2
2.40
2.50
2.94
F3
4.98
5.08
5.48
delta H
-2.00
W
17.50
18.00
19.00
W0
5.5
6.00
6.5
W1
8.50
9.00
9.25
2.00
W2
0.50
H
18.50
21
H3
0.5
1
2
H0
15.50
16.00
18.8
25.0
27.0
4.00
4.20
H1
D0
DS0424 - Rev 28
Max.
3.80
page 22/40
L78L
SO-8 package information
Dim.
7.4
mm
Min.
Typ.
Max.
t
0.90
L
11.00
I1
3.00
delta P
-1.00
1.00
SO-8 package information
Figure 20. SO-8 package outline
0016023_So-807_fig2_Rev10
DS0424 - Rev 28
page 23/40
L78L
SO-8 package information
Table 25. SO-8 mechanical data
Dim.
mm
Min.
Typ.
Max.
A
1.75
A1
0.10
A2
1.25
b
0.31
0.51
b1
0.28
0.48
c
0.10
0.25
c1
0.10
0.23
D
4.80
4.90
5.00
E
5.80
6.00
6.20
E1
3.80
3.90
4.00
e
0.25
1.27
h
0.25
0.50
L
0.40
1.27
L1
1.04
L2
0.25
k
0°
8°
ccc
0.10
Figure 21. SO-8 recommended footprint (dimensions are in mm)
0016023_So-807_footprint_Rev10
DS0424 - Rev 28
page 24/40
L78L
SO-8 packing information
7.5
SO-8 packing information
Figure 22. SO-8 tape and reel dimensions
D
A
N
T
Po
Bo
Ko
Ao
P
0016023_SO-8_O7_T_R
Figure 23. Tape orientation
DS0424 - Rev 28
page 25/40
L78L
SO-8 packing information
Table 26. SO-8 tape and reel mechanical data
Dim.
mm
Min.
Typ.
A
330
C
12.8
D
20.2
N
60
T
DS0424 - Rev 28
Max.
13.2
-
22.4
Ao
6.5
6.7
Bo
5.4
5.6
Ko
2.0
2.2
Po
3.9
4.1
P
7.9
8.1
page 26/40
L78L
SOT-89 package information
7.6
SOT-89 package information
Figure 24. SOT-89 package outline
7098166_REV_F
DS0424 - Rev 28
page 27/40
L78L
SOT-89 package information
Table 27. SOT-89 mechanical data
Dim.
mm
Min.
Max.
A
1.40
1.60
B
0.44
0.56
B1
0.36
0.48
C
0.35
0.44
C1
0.35
0.44
D
4.40
4.60
D1
1.62
1.83
D3
DS0424 - Rev 28
Typ.
0.90
E
2.29
2.60
e
1.42
1.57
e1
2.92
3.07
H
3.94
4.25
H1
2.70
3.10
K
1°
8°
L
0.89
1.20
R
0.25
β
90°
page 28/40
L78L
SOT-89 package information
Figure 25. SOT-89 recommended footprint
Footprint
DS0424 - Rev 28
page 29/40
L78L
SOT-89 packing information
7.7
SOT-89 packing information
Figure 26. SOT-89 carrier tape outline
7111762_5
Figure 27. SOT-89 device orientation
DS0424 - Rev 28
page 30/40
L78L
SOT-89 packing information
Table 28. SOT-89 carrier tape mechanical data
Dim.
DS0424 - Rev 28
mm
Value
Tolerance
Ao
4.91
± 0.10
Bo
4.52
± 0.10
Ko
1.90
± 0.10
F
5.50
± 0.10
E
1.75
± 0.10
W
12
± 0.30
P2
2
± 0.10
Po
4
± 0.10
P1
8
± 0.10
T
0.30
± 0.10
D
Ø 1.55
± 0.05
D1
Ø 1.60
± 0.10
page 31/40
L78L
SOT-89 packing information
Figure 28. SOT-89 reel drawing
DS0424 - Rev 28
page 32/40
L78L
Ordering information
8
Ordering information
Table 29. Order codes
Part numbers
SO-8
TO-92 (Bag) (1)
L78L33ABD-TR
L78L33ACD13TR
TO-92 (ammopack)
L78L33ACZ-AP
SOT-89
(tape and reel)
L78L33ABZ-AP
L78L33ACZ
Output
voltages
TO-92
L78L33ACZTR
(V)
L78L33ABUTR
3.3
L78L33ACUTR
3.3
L78L33CD-TR
3.3
L78L05ABD13TR
L78L05ABZ
L78L05ABZ-AP
L78L05ABZ-TR
L78L05ABUTR
5
L78L05ACD13TR
L78L05ACZ
L78L05ACZ-AP
L78L05ACZTR
L78L05ACUTR
5
L78L05CD13TR
L78L05CZ
5
L78L06ABZ
L78L06ACD13TR
L78L08ABD13TR
L78L08ACD13TR
L78L08ACZ
L78L06ABUTR
6
L78L06ACUTR
6
L78L08ABZ-AP
L78L08ABZTR
L78L08ABUTR
8
L78L08ACZ-AP
L78L08ACZTR
L78L08ACUTR
8
L78L08CD13TR
L78L09ABD13TR
8
L78L09ABZ
L78L09ACD13TR
L78L09ACZ-AP
L78L09ACZ-TR
L78L09ABUTR
9
L78L09ACUTR
9
L78L09CD13TR
9
L78L12ABD-TR
L78L12ABZ
L78L12ABZ-AP
L78L12ACD13TR
L78L12ACZ
L78L12ACZ-AP
L78L12ACZ-TR
L78L10ACUTR
10
L78L12ABUTR
12
L78L12ACUTR
12
L78L12CD13TR
12
L78L15ABZ-AP
L78L15ACD13TR
L78L15ACZ
L78L15ABUTR
15
L78L15ACUTR
15
L78L15CD-TR
15
L78L18ACUTR
L78L18CD13TR
18
18
L78L24ABZ-TR
24
L78L24ACZ-AP
L78L24ACUTR
L78L24CD-TR
24
24
1. Available in Ammopak with the suffix "-AP" or in tape and reel with the suffix "TR". Please note that in these
cases pins are shaped according to tape and reel specifications.
DS0424 - Rev 28
page 33/40
L78L
Ordering information
Table 30. Marking information
Part numbers
Marking
Packages
Output voltages
L78L05ABD13TR
L78L05ABUTR
78L05B
SO-8
5V
8C
SOT-89
5V
L78L05ABZ
L78L05A
TO-92
5V
L78L05ABZ-AP
L78L05A
TO-92
5V
L78L05ABZ-TR
L78L05A
TO-92
5V
L78L05ACD13TR
78L05A
SO-8
5V
L78L05ACUTR
8C
SOT-89
5V
L78L05ACZ
L78L05A
TO-92
5V
L78L05ACZ-AP
L78L05A
TO-92
5V
L78L05ACZTR
L78L05A
TO-92
5V
L78L05CD13TR
78L05
SO-8
5V
L78L05CZ
L78L05A
TO-92
5V
L78L06ABUTR
8E
SOT-89
6V
L78L06ABZ
L78L06A
TO-92
6V
L78L06ACD13TR
L78L06A
SO-8
6V
L78L06ACUTR
8E
SOT-89
6V
L78L08ABD13TR
78L08B
SO-8
8V
L78L08ABUTR
8G
SOT-89
8V
L78L08ABZ-AP
L78L08A
TO-92
8V
L78L08ABZTR
L78L08A
TO-92
8V
L78L08ACD13TR
78L08A
SO-8
8V
L78L08ACUTR
8G
SOT-89
8V
L78L08ACZ
L78L08A
TO-92
8V
L78L08ACZ-AP
L78L08A
TO-92
8V
L78L08ACZTR
L78L08A
TO-92
8V
L78L08CD13TR
78L08
SO-8
8V
L78L09ABD13TR
78L09B
SO-8
8V
L78L09ABZ
L78L09A
TO-92
9V
L78L09ABUTR
8H
SOT-89
9V
L78L09ACD13TR
78L09A
SO8
9V
L78L09ACUTR
8H
SOT-89
9V
L78L09ACZ-AP
L78L09A
TO-92
9V
L78L09ACZ-TR
L78L09A
TO-92
9V
L78L09CD13TR
L78L09A
SO-8
9V
L78L10ACUTR
8I
SOT-89
10 V
L78L12ABD-TR
78L12B
SO-8
12 V
L78L12ABUTR
8K
SOT-89
12 V
L78L12ABZ
L78L12A
TO-92
12 V
L78L12ABZ-AP
L78L12A
TO 92
12 V
L78L12ACD13TR
78L12A
SO-8
12 V
DS0424 - Rev 28
page 34/40
L78L
Ordering information
Part numbers
Marking
Packages
Output voltages
L78L12ACUTR
8K
SOT-89
12 V
L78L12ACZ
L78L12A
TO-92
12 V
L78L12ACZ-AP
L78L12A
TO-92
12 V
L78L12ACZ-TR
L78L12A
TO-92
12 V
L78L12CD13TR
78L12
SO-8
12 V
L78L15ABUTR
8L
SOT-89
15 V
L78L15ABZ-AP
L78L15A
TO-92
15 V
L78L15ACD13TR
78L15A
SO-8
15 V
L78L15ACUTR
8L
SOT-89
15 V
L78L15ACZ
L78L15A
TO-92
15 V
L78L15CD-TR
78L15
SO-8
15 V
L78L18ACUTR
8B
SOT-89
18 V
L78L18CD13TR
L78L18
SO-8
18 V
L78L24ABZ-TR
L78L24A
TO-92
24 V
L78L24ACUTR
8P
SOT-89
24 V
L78L24ACZ-AP
L78L24A
TO-92
24 V
L78L24CD-TR
78L24
SO-8
24 V
L78L33ABD-TR
78L33B
SO-8
3.3 V
L78L33ABUTR
8A
SOT-89
3.3 V
L78L33ABZ-AP
L78L33A
TO-92
3.3 V
L78L33ACD13TR
78L33A
SO-8
3.3 V
L78L33ACUTR
8A
SOT-89
3.3 V
L78L33ACZ
L78L33A
TO-92
3.3 V
L78L33ACZ-AP
L78L33A
TO-92
3.3 V
L78L33ACZTR
L78L33A
TO-92
3.3 V
DS0424 - Rev 28
page 35/40
L78L
Revision history
Table 31. Document revision history
Date
Revision
Changes
14-Mar-2005
9
Add tape and reel for TO-92.
15-Mar-2005
10
Add note on Table 3.
23-Dec-2005
11
Mistake on ordering Table in header.
12-Sep-2006
12
Order codes updated.
07-Jun-2007
13
Order codes updated.
18-Sep-2007
14
Added Table 1 in cover page.
15-Jul-2008
15
Modified: Table 1 and Table 28: Order codes.
18-Aug-2008
16
Modified Figure 12 on page 26.
03-Apr-2009
17
Added: RthJA value for SOT-89 Table 2 on page 5.
08-Feb-2011
18
Added note Table 26 on page 39
21-Feb-2012
19
Modified: SOT-89 Figure 2 on page 4.
14-Aug-2012
20
07-Sep-2012
21
Updated TOP value for L78L00AC in Table 1 on page 5.
Minor text changes.
Added: Table 29: Marking information.
Part numbers L78LxxAB, L78LxxAC, L78LxxC changed to L78L.
Removed Table1: Device summary.
14-Apr-2014
22
Updated features and description in cover page, Table 28: Order codes,
Table 29: Marking information and Section 7: Package information.
Added Section: Packing mechanical data.
Minor text changes.
06-Oct-2014
23
10-Feb-2015
24
10-Feb-2016
25
Updated Table 28: Order codes and Table 29: Marking information.
Minor text changes.
Updated Table 29: Marking information.
Minor text changes.
Updated Table 29: Marking information and Section 7.7: SOT-89 packing
information.
Minor text changes.
21-Jun-2016
26
Changed test condition values for the parameter "Line regulation"and the
typical value for the parameter "Dropout voltage" in : Table 3: "Electrical
characteristics of L78L33C", Table 4: "Electrical characteristics of L78L05C",
Table 12: "Electrical characteristics of L78L33AB and L78L33AC" and Table
13: "Electrical characteristics of L78L05AB and L78L05AC".
Minor text changes.
DS0424 - Rev 28
30-Nov-2020
27
Added Figure 27. SOT-89 device orientation.
07-Apr-2021
28
Added Figure 28. SOT-89 reel drawing.
page 36/40
L78L
Contents
Contents
1
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
4
Electrical characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5
Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
6
Typical application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
7
Package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
8
7.1
TO-92 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.2
TO-92 packing information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.3
TO-92 Ammopak packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.4
SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.5
SO-8 packing information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.6
SOT-89 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.7
SOT-89 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
List of tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
List of figures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
DS0424 - Rev 28
page 37/40
L78L
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Table 19.
Table 20.
Table 21.
Table 22.
Table 23.
Table 24.
Table 25.
Table 26.
Table 27.
Table 28.
Table 29.
Table 30.
Table 31.
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Electrical characteristics of L78L33C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 8.3 V, IO = 40 mA, CI = 0.33
µF, CO = 0.1 µF unless otherwise specified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical characteristics of L78L05C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 10 V, IO = 40 mA, CI = 0.33
µF, CO = 0.1 µF unless otherwise specified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical characteristics of L78L08C - Refer to the test circuits, TJ = 0 to 125 °C,VI = 14 V, IO = 40 mA, CI = 0.33 µF,
CO = 0.1 µF unless otherwise specified. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical characteristics of L78L09C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 15 V, IO = 40 mA, CI = 0.33
µF, CO = 0.1 µF unless otherwise specified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical characteristics of L78L10C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 16 V, IO = 40 mA, CI = 0.33
µF, CO = 0.1 µF unless otherwise specified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical characteristics of L78L12C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 19 V, IO = 40 mA, CI = 0.33
µF, CO = 0.1 µF unless otherwise specified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical characteristics of L78L15C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 23 V, IO = 40 mA, CI = 0.33
µF, CO = 0.1 µF unless otherwise specified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical characteristics of L78L18C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 27 V, IO = 40 mA, CI = 0.33
µF, CO = 0.1 µF unless otherwise specified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical characteristics of L78L24C - Refer to the test circuits, TJ = 0 to 125 °C, VI = 33 V, IO = 40 mA, CI = 0.33
µF, CO = 0.1 µF unless otherwise specified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical characteristics of L78L33AB and L78L33AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to
125 °C (AB),VI = 8.3 V, IO = 40mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified . . . . . . . . . . . . . . . . . . 9
Electrical characteristics of L78L05AB and L78L05AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to
125 °C (AB), VI = 10 V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified . . . . . . . . . . . . . . . . . 10
Electrical characteristics of L78L06AB and L78L06AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to
125 °C (AB), VI = 12 V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified . . . . . . . . . . . . . . . . . 10
Electrical characteristics of L78L08AB and L78L08AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to
125 °C (AB), VI = 14 V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified . . . . . . . . . . . . . . . . . 11
Electrical characteristics of L78L09AB and L78L09AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to
125 °C (AB), VI =15 V, IO= 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified . . . . . . . . . . . . . . . . . . 11
Electrical characteristics of L78L10AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to 125 °C (AB), VI=
16 V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electrical characteristics of L78L12AB and L78L12AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to
125 °C (AB), VI =19 V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified . . . . . . . . . . . . . . . . . 12
Electrical characteristics of L78L15AB and L78L15AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to
125 °C (AB), VI = 23 V,IO= 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified . . . . . . . . . . . . . . . . . . 13
Electrical characteristics of L78L18AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to 125 °C (AB),VI =
27 V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Electrical characteristics of L78L24AB and L78L24AC - Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to
125 °C (AB),VI = 33 V, IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified . . . . . . . . . . . . . . . . . 14
TO-92 mechanical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
TO-92 tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
TO-92 Ammopak tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
SO-8 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
SO-8 tape and reel mechanical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
SOT-89 mechanical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
SOT-89 carrier tape mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Marking information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
DS0424 - Rev 28
page 38/40
L78L
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
DS0424 - Rev 28
Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . .
Pin connection (top view, bottom view for TO-92) . . .
Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
L78L05/12 output voltage vs. ambient temperature . .
L78L05/12/24 load characteristics . . . . . . . . . . . . . .
L78L05/12/24 thermal shutdown . . . . . . . . . . . . . . .
L78L05/12 quiescent current vs. output current . . . . .
L78L05 quiescent current vs. input voltage . . . . . . . .
L78L05/12/24 output characteristics . . . . . . . . . . . .
L78L05/12/24 ripple rejection . . . . . . . . . . . . . . . . .
L78L05 dropout characteristics . . . . . . . . . . . . . . . .
L78L short-circuit output current . . . . . . . . . . . . . . .
High output current short-circuit protected . . . . . . . .
Outuput boost circuit . . . . . . . . . . . . . . . . . . . . . . .
Current regulator . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustable output regulator. . . . . . . . . . . . . . . . . . .
TO-92 package outline . . . . . . . . . . . . . . . . . . . . .
TO-92 tape and reel outline . . . . . . . . . . . . . . . . . .
TO-92 Ammopak tape and reel outline. . . . . . . . . . .
SO-8 package outline . . . . . . . . . . . . . . . . . . . . . .
SO-8 recommended footprint (dimensions are in mm)
SO-8 tape and reel dimensions. . . . . . . . . . . . . . . .
Tape orientation . . . . . . . . . . . . . . . . . . . . . . . . . .
SOT-89 package outline . . . . . . . . . . . . . . . . . . . .
SOT-89 recommended footprint . . . . . . . . . . . . . . .
SOT-89 carrier tape outline . . . . . . . . . . . . . . . . . .
SOT-89 device orientation . . . . . . . . . . . . . . . . . . .
SOT-89 reel drawing . . . . . . . . . . . . . . . . . . . . . . .
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page 39/40
L78L
IMPORTANT NOTICE – PLEASE READ CAREFULLY
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© 2021 STMicroelectronics – All rights reserved
DS0424 - Rev 28
page 40/40