June 2016
DocID2145 Rev 26
1/45
This is information on a product in full production.
www.st.com
L78L
Positive voltage regulators
Datasheet - production data
Features
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 on-
card 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.
Contents
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DocID2145 Rev 26
Contents
1 Diagram ............................................................................................ 3
2 Pin configuration ............................................................................. 4
3 Maximum ratings ............................................................................. 5
4 Electrical characteristics ................................................................ 6
5 Typical performance ..................................................................... 25
6 Typical application ........................................................................ 27
7 Package information ..................................................................... 29
7.1 TO-92 package information ............................................................. 29
7.2 TO-92 packing information .............................................................. 30
7.3 TO-92 Ammopak packing information ............................................. 32
7.4 SO-8 package information .............................................................. 34
7.5 SO-8 packing information ................................................................ 36
7.6 SOT-89 package information .......................................................... 37
7.7 SOT-89 packing information............................................................ 40
8 Ordering information ..................................................................... 41
9 Revision history ............................................................................ 44
L78L
Diagram
DocID2145 Rev 26
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1 Diagram
Figure 1: Schematic diagram
Pin configuration
L78L
4/45
DocID2145 Rev 26
2 Pin configuration
Figure 2: Pin connection (top view, bottom view for TO-92)
Figure 3: Test circuits
L78L
Maximum ratings
DocID2145 Rev 26
5/45
3 Maximum ratings
Table 1: Absolute maximum ratings
Symbol
Parameter
Value
Unit
VI
DC Input voltage
VO = 3.3 to 9 V
30
V
VO = 12 to 15 V
35
VO = 18 to 24 V
40
IO
Output current
100
mA
PD
Power dissipation
Internally limited (1)
mW
TSTG
Storage temperature range
-65 to 150
°C
TOP
Operating junction temperature range
for L78LxxAC / L78LxxC
0 to 125
°C
for L78LxxAB
-40 to 125
Notes:
(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
SO-8
TO-92
SOT-89
Unit
RthJC
Thermal resistance junction-case (max)
20
15
°C/W
RthJA
Thermal resistance junction-ambient (max)
55 (1)
200
55 (1)
°C/W
Notes:
(1)Considering 6 cm² of copper Board heat-sink.
Electrical characteristics
L78L
6/45
DocID2145 Rev 26
4 Electrical characteristics
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.
Table 3: Electrical characteristics of L78L33C
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
V
IO = 1 to 70 mA, VI = 8.3 V
2.97
3.63
∆VO
Line regulation
VI = 5.4 to 20 V, TJ = 25 °C
150
mV
VI = 6.3 to 20 V, TJ = 25 °C
100
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
60
mV
IO = 1 to 40 mA, TJ = 25 °C
30
Id
Quiescent current
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.2
mA
VI = 6.3 to 20 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
40
µV
SVR
Supply voltage rejection
VI = 6.3 to 16.3 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
41
49
dB
Vd
Dropout voltage
2
V
L78L
Electrical characteristics
DocID2145 Rev 26
7/45
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.
Table 4: Electrical characteristics of L78L05C
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
4.6
5
5.4
V
VO
Output voltage
IO = 1 to 40 mA, VI = 7 to 20 V
4.5
5.5
V
IO = 1 to 70 mA, VI = 10 V
4.5
5.5
∆VO
Line regulation
VI = 8.5 to 20 V, TJ = 25 °C
200
mV
VI = 9 to 20 V, TJ = 25 °C
150
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
60
mV
IO = 1 to 40 mA, TJ = 25 °C
30
Id
Quiescent current
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.2
mA
VI = 8 to 20 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
40
µV
SVR
Supply voltage rejection
VI = 9 to 20 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
40
49
dB
Vd
Dropout voltage
2
V
Electrical characteristics
L78L
8/45
DocID2145 Rev 26
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.
Table 5: Electrical characteristics of L78L08C
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
V
IO = 1 to 70 mA, VI = 12 V
7.2
8.8
∆VO
Line regulation
VI = 10.5 to 20 V, TJ = 25 °C
200
mV
VI = 11 to 20 V, TJ = 25 °C
150
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
80
mV
IO = 1 to 40 mA, TJ = 25 °C
40
Id
Quiescent current
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.2
mA
VI = 8 to 20 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
60
µV
SVR
Supply voltage rejection
VI = 9 to 20 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
36
45
dB
Vd
Dropout voltage
1.7
V
L78L
Electrical characteristics
DocID2145 Rev 26
9/45
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.
Table 6: Electrical characteristics of L78L09C
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
V
IO = 1 to 70 mA, VI = 15 V
8.1
9.9
∆VO
Line regulation
VI = 11.5 to 23 V, TJ = 25 °C
250
mV
VI = 12 to 23 V, TJ = 25 °C
200
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
80
mV
IO = 1 to 40 mA, TJ = 25 °C
40
Id
Quiescent current
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.2
mA
VI = 12 to 23 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
70
µV
SVR
Supply voltage rejection
VI = 12 to 23 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
36
44
dB
Vd
Dropout voltage
1.7
V
Electrical characteristics
L78L
10/45
DocID2145 Rev 26
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.
Table 7: Electrical characteristics of L78L10C
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
V
IO = 1 to 70 mA, VI = 16 V
9
11
∆VO
Line regulation
VI = 12.5 to 23 V, TJ = 25 °C
230
mV
VI = 13 to 23 V, TJ = 25 °C
170
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
80
mV
IO = 1 to 40 mA, TJ = 25 °C
40
Id
Quiescent current
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.1
mA
VI = 13 to 23 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
60
µV
SVR
Supply voltage rejection
VI = 14 to 23 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
37
45
dB
Vd
Dropout voltage
1.7
V
L78L
Electrical characteristics
DocID2145 Rev 26
11/45
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.
Table 8: Electrical characteristics of L78L12C
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
V
IO = 1 to 70 mA, VI = 19 V
10.8
13.2
∆VO
Line regulation
VI = 14.5 to 27 V, TJ = 25 °C
250
mV
VI = 16 to 27 V, TJ = 25 °C
200
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
100
mV
IO = 1 to 40 mA, TJ = 25 °C
50
Id
Quiescent current
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.2
mA
VI = 16 to 27 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
80
µV
SVR
Supply voltage rejection
VI = 15 to 25 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
36
42
dB
Vd
Dropout voltage
1.7
V
Electrical characteristics
L78L
12/45
DocID2145 Rev 26
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
Table 9: Electrical characteristics of L78L15C
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
V
IO = 1 to 70 mA, VI = 23 V
13.5
16.5
∆VO
Line regulation
VI = 17.5 to 30 V, TJ = 25 °C
300
mV
VI = 20 to 30 V, TJ = 25 °C
250
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
150
mV
IO = 1 to 40 mA, TJ = 25 °C
75
Id
Quiescent current
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.2
mA
VI = 20 to 30 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
90
µV
SVR
Supply voltage rejection
VI = 18.5 to 28.5 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
33
39
dB
Vd
Dropout voltage
1.7
V
L78L
Electrical characteristics
DocID2145 Rev 26
13/45
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.
Table 10: Electrical characteristics of L78L18C
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
V
IO = 1 to 70 mA, VI = 27 V
16.2
19.8
∆VO
Line regulation
VI = 22 to 33 V, TJ = 25 °C
320
mV
VI = 22 to 33 V, TJ = 25 °C
270
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
170
mV
IO = 1 to 40 mA, TJ = 25 °C
85
Id
Quiescent current
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.2
mA
VI = 23 to 33 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
120
µV
SVR
Supply voltage rejection
VI = 23 to 33 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
32
38
dB
Vd
Dropout voltage
1.7
V
Electrical characteristics
L78L
14/45
DocID2145 Rev 26
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.
Table 11: Electrical characteristics of L78L24C
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
V
IO = 1 to 70 mA, VI = 33 V
21.6
26.4
∆VO
Line regulation
VI = 27 to 38 V, TJ = 25 °C
350
mV
VI = 28 to 38 V, TJ = 25 °C
300
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
200
mV
IO = 1 to 40 mA, TJ = 25 °C
100
Id
Quiescent current
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.2
mA
VI = 28 to 38 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
200
µV
SVR
Supply voltage rejection
VI = 29 to 35 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
30
37
dB
Vd
Dropout voltage
1.7
V
L78L
Electrical characteristics
DocID2145 Rev 26
15/45
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.
Table 12: Electrical characteristics of L78L33AB and L78L33AC
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
V
IO = 1 to 70 mA, VI = 8.3 V
3.135
3.465
∆VO
Line regulation
VI = 5.4 to 20 V, TJ = 25 °C
150
mV
VI = 6.3 to 20 V, TJ = 25 °C
100
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
60
mV
IO = 1 to 40 mA, TJ = 25 °C
30
Id
Quiescent current
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.1
mA
VI = 6.3 to 20 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
40
µV
SVR
Supply voltage rejection
VI = 6.3 to 16.3 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
41
49
dB
Vd
Dropout voltage
2
V
Electrical characteristics
L78L
16/45
DocID2145 Rev 26
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.
Table 13: Electrical characteristics of L78L05AB and L78L05AC
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
V
IO = 1 to 70 mA, VI = 10 V
4.75
5.25
∆VO
Line regulation
VI = 7.3 to 20 V, TJ = 25 °C
150
mV
VI = 8 to 20 V, TJ = 25 °C
100
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
60
mV
IO = 1 to 40 mA, TJ = 25 °C
30
Id
Quiescent current
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.1
mA
VI = 8 to 20 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
40
µV
SVR
Supply voltage rejection
VI = 8 to 18 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
41
49
dB
Vd
Dropout voltage
2
V
L78L
Electrical characteristics
DocID2145 Rev 26
17/45
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.
Table 14: Electrical characteristics of L78L06AB and L78L06AC
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
V
IO = 1 to 70 mA, VI = 12 V
5.7
6.3
∆VO
Line regulation
VI = 8.5 to 20 V, TJ = 25 °C
150
mV
VI = 9 to 20 V, TJ = 25 °C
100
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
60
mV
IO = 1 to 40 mA, TJ = 25 °C
30
Id
Quiescent current
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.1
mA
VI = 9 to 20 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
50
µV
SVR
Supply voltage rejection
VI = 9 to 20 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
39
46
dB
Vd
Dropout voltage
1.7
V
Electrical characteristics
L78L
18/45
DocID2145 Rev 26
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.
Table 15: Electrical characteristics of L78L08AB and L78L08AC
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
V
IO = 1 to 70 mA, VI = 14 V
7.6
8.4
∆VO
Line regulation
VI = 10.5 to 23 V, TJ = 25 °C
175
mV
VI = 11 to 23 V, TJ = 25 °C
125
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
80
mV
IO = 1 to 40 mA, TJ = 25 °C
40
Id
Quiescent current
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.1
mA
VI = 11 to 23 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
60
µV
SVR
Supply voltage rejection
VI = 12 to 23 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
37
45
dB
Vd
Dropout voltage
1.7
V
L78L
Electrical characteristics
DocID2145 Rev 26
19/45
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.
Table 16: Electrical characteristics of L78L09AB and L78L09AC
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
V
IO = 1 to 70 mA, VI = 15 V
8.55
9.45
∆VO
Line regulation
VI = 11.5 to 23 V, TJ = 25 °C
225
mV
VI = 12 to 23 V, TJ = 25 °C
150
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
80
mV
IO = 1 to 40 mA, TJ = 25 °C
40
Id
Quiescent current
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.1
mA
VI = 12 to 23 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
70
µV
SVR
Supply voltage rejection
VI = 12 to 23 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
37
44
dB
Vd
Dropout voltage
1.7
V
Electrical characteristics
L78L
20/45
DocID2145 Rev 26
Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to 125 °C (AB), VI= 16 V,
IO = 40mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified.
Table 17: Electrical characteristics of L78L10AC
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
V
IO = 1 to 70 mA, VI = 16 V
9.5
10.5
∆VO
Line regulation
VI = 12.5 to 23 V, TJ = 25 °C
230
mV
VI = 13 to 23 V, TJ = 25 °C
170
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
80
mV
IO = 1 to 40 mA, TJ = 25 °C
40
Id
Quiescent current
TJ = 25 °C
6
mA
TJ = 125 °C
5.5
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.1
mA
VI = 13 to 23 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
60
µV
SVR
Supply voltage rejection
VI = 14 to 23 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
37
45
dB
Vd
Dropout voltage
1.7
V
L78L
Electrical characteristics
DocID2145 Rev 26
21/45
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.
Table 18: Electrical characteristics of L78L12AB and L78L12AC
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
V
IO = 1 to 70 mA, VI = 19 V
11.4
12.6
∆VO
Line regulation
VI = 14.5 to 27 V, TJ = 25 °C
250
mV
VI = 16 to 27 V, TJ = 25 °C
200
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
100
mV
IO = 1 to 40 mA, TJ = 25 °C
50
Id
Quiescent current
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.1
mA
VI = 16 to 27 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
80
µV
SVR
Supply voltage rejection
VI = 15 to 25 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
37
42
dB
Vd
Dropout voltage
1.7
V
Electrical characteristics
L78L
22/45
DocID2145 Rev 26
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.
Table 19: Electrical characteristics of L78L15AB and L78L15AC
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
V
IO = 1 to 70 mA, VI = 23 V
14.25
15.75
∆VO
Line regulation
VI = 17.5 to 30 V, TJ = 25 °C
300
mV
VI = 20 to 30 V, TJ = 25 °C
250
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
150
mV
IO = 1 to 40 mA, TJ = 25 °C
75
Id
Quiescent current
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.1
mA
VI = 20 to 30 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
90
µV
SVR
Supply voltage rejection
VI = 18.5 to 28.5 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
34
39
dB
Vd
Dropout voltage
1.7
V
L78L
Electrical characteristics
DocID2145 Rev 26
23/45
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.
Table 20: Electrical characteristics of L78L18AC
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
V
IO = 1 to 70 mA, VI = 27 V
17.1
18.9
∆VO
Line regulation
VI = 22 to 33 V, TJ = 25 °C
320
mV
VI = 22 to 33 V, TJ = 25 °C
270
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
170
mV
IO = 1 to 40 mA, TJ = 25 °C
85
Id
Quiescent current
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.1
mA
VI = 23 to 33 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
120
µV
SVR
Supply voltage rejection
VI = 23 to 33 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
33
38
dB
Vd
Dropout voltage
1.7
V
Electrical characteristics
L78L
24/45
DocID2145 Rev 26
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.
Table 21: Electrical characteristics of L78L24AB and L78L24AC
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
V
IO = 1 to 70 mA, VI = 33 V
22.8
25.2
∆VO
Line regulation
VI = 27 to 38 V, TJ = 25 °C
350
mV
VI = 28 to 38 V, TJ = 25 °C
300
∆VO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
200
mV
IO = 1 to 40 mA, TJ = 25 °C
100
Id
Quiescent current
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
∆Id
Quiescent current change
IO = 1 to 40 mA
0.1
mA
VI = 28 to 38 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
200
µV5y
SVR
Supply voltage rejection
VI = 29 to 33 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
31
37
dB
Vd
Dropout voltage
1.7
V
L78L
Typical performance
DocID2145 Rev 26
25/45
5 Typical performance
Figure 4: L78L05/12 output voltage vs. ambient
temperature
Figure 5: L78L05/12/24 load characteristics
Figure 6: L78L05/12/24 thermal shutdown
Figure 7: L78L05/12 quiescent current vs. output
current
Typical performance
L78L
26/45
DocID2145 Rev 26
Figure 8: L78L05 quiescent current vs. input voltage
Figure 9: L78L05/12/24 output characteristics
Figure 10: L78L05/12/24 ripple rejection
Figure 11: L78L05 dropout characteristics
Figure 12: L78L short-circuit output current
L78L
Typical application
DocID2145 Rev 26
27/45
6 Typical application
Figure 13: High output current short-circuit protected
Figure 14: Outuput boost circuit
Figure 15: Current regulator
Typical application
L78L
28/45
DocID2145 Rev 26
Figure 16: Adjustable output regulator
L78L
Package information
DocID2145 Rev 26
29/45
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
Table 22: TO-92 mechanical data
Dim.
mm
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
5°
Package information
L78L
30/45
DocID2145 Rev 26
7.2 TO-92 packing information
Figure 18: TO-92 tape and reel outline
L78L
Package information
DocID2145 Rev 26
31/45
Table 23: TO-92 tape and reel mechanical data
Dim.
mm
Min.
Typ.
Max.
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
2.00
W
17.50
18.00
19.00
W0
5.5
6.00
6.5
W1
8.50
9.00
9.25
W2
0.50
H
18.50
21
H3
0.5
1
2
H0
15.50
16.00
18.8
H1
25.0
27.0
D0
3.80
4.00
4.20
t
0.90
L
11.00
I1
3.00
delta P
-1.00
1.00
Ø1
352
355
358
Ø2
28
30
32
u
44
47
50
Package information
L78L
32/45
DocID2145 Rev 26
7.3 TO-92 Ammopak packing information
Figure 19: TO-92 Ammopak tape and reel outline
L78L
Package information
DocID2145 Rev 26
33/45
Table 24: TO-92 Ammopak tape and reel mechanical data
Dim.
mm
Min.
Typ.
Max.
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
2.00
W
17.50
18.00
19.00
W0
5.5
6.00
6.5
W1
8.50
9.00
9.25
W2
0.50
H
18.50
21
H3
0.5
1
2
H0
15.50
16.00
18.8
H1
25.0
27.0
D0
3.80
4.00
4.20
t
0.90
L
11.00
I1
3.00
delta P
-1.00
1.00
Package information
L78L
34/45
DocID2145 Rev 26
7.4 SO-8 package information
Figure 20: SO-8 package outline
L78L
Package information
DocID2145 Rev 26
35/45
Table 25: SO-8 mechanical data
Dim.
mm
Min.
Typ.
Max.
A
1.75
A1
0.10
0.25
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
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)
Package information
L78L
36/45
DocID2145 Rev 26
7.5 SO-8 packing information
Figure 22: SO-8 tape and reel dimensions
Table 26: SO-8 tape and reel mechanical data
Dim.
mm
Min.
Typ.
Max.
A
330
C
12.8
13.2
D
20.2
N
60
T
22.4
Ao
8.1
8.5
Bo
5.5
5.9
Ko
2.1
2.3
Po
3.9
4.1
P
7.9
8.1
L78L
Package information
DocID2145 Rev 26
37/45
7.6 SOT-89 package information
Figure 23: SOT-89 package outline
Package information
L78L
38/45
DocID2145 Rev 26
Table 27: SOT-89 mechanical data
Dim.
mm
Min.
Typ.
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
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
120
R
0.25
β
90°
L78L
Package information
DocID2145 Rev 26
39/45
Figure 24: SOT-89 recommended footprint
Package information
L78L
40/45
DocID2145 Rev 26
7.7 SOT-89 packing information
Figure 25: SOT-89 carrier tape outline
Table 28: SOT-89 carrier tape mechanical data
Dim.
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
L78L
Ordering information
DocID2145 Rev 26
41/45
8 Ordering information
Table 29: Order codes
Part numbers
Output
voltages
(V)
SO-8
TO-92 (Bag) (1)
TO-92
(ammopack)
TO-92
(tape and reel)
SOT-89
L78L33ABD-TR
L78L33ABZ-AP
L78L33ABUTR
3.3
L78L33ACD13TR
L78L33ACZ
L78L33ACZ-AP
L78L33ACZTR
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
L78L06ABUTR
6
L78L06ACD13TR
L78L06ACUTR
6
L78L08ABD13TR
L78L08ABZ-AP
L78L08ABZTR
L78L08ABUTR
8
L78L08ACD13TR
L78L08ACZ
L78L08ACZ-AP
L78L08ACZTR
L78L08ACUTR
8
L78L08CD13TR
8
L78L09ABD13TR
L78L09ABZ
L78L09ABUTR
9
L78L09ACD13TR
L78L09ACZ-AP
L78L09ACZ-TR
L78L09ACUTR
9
L78L09CD13TR
9
L78L10ACUTR
10
L78L12ABD-TR
L78L12ABZ
L78L12ABZ-AP
L78L12ABUTR
12
L78L12ACD13TR
L78L12ACZ
L78L12ACZ-AP
L78L12ACZ-TR
L78L12ACUTR
12
L78L12CD13TR
12
L78L15ABZ-AP
L78L15ABUTR
15
L78L15ACD13TR
L78L15ACZ
L78L15ACUTR
15
L78L15CD-TR
15
L78L18ACUTR
18
L78L18CD13TR
18
L78L24ABZ-TR
24
L78L24ACZ-AP
L78L24ACUTR
24
L78L24CD-TR
24
Notes:
(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.
Ordering information
L78L
42/45
DocID2145 Rev 26
Table 30: Marking information
Part numbers
Marking
Packages
Output voltages
L78L05ABD13TR
78L05B
SO-8
5 V
L78L05ABUTR
8C
SOT-89
5 V
L78L05ABZ
L78L05A
TO-92
5 V
L78L05ABZ-AP
L78L05A
TO-92
5 V
L78L05ABZ-TR
L78L05A
TO-92
5 V
L78L05ACD13TR
78L05A
SO-8
5 V
L78L05ACUTR
8C
SOT-89
5 V
L78L05ACZ
L78L05A
TO-92
5 V
L78L05ACZ-AP
L78L05A
TO-92
5 V
L78L05ACZTR
L78L05A
TO-92
5 V
L78L05CD13TR
78L05
SO-8
5 V
L78L05CZ
L78L05A
TO-92
5 V
L78L06ABUTR
8E
SOT-89
6 V
L78L06ABZ
L78L06A
TO-92
6 V
L78L06ACD13TR
L78L06A
SO-8
6 V
L78L06ACUTR
8E
SOT-89
6 V
L78L08ABD13TR
78L08B
SO-8
8 V
L78L08ABUTR
8G
SOT-89
8 V
L78L08ABZ-AP
L78L08A
TO-92
8 V
L78L08ABZTR
L78L08A
TO-92
8 V
L78L08ACD13TR
78L08A
SO-8
8 V
L78L08ACUTR
8G
SOT-89
8 V
L78L08ACZ
L78L08A
TO-92
8 V
L78L08ACZ-AP
L78L08A
TO-92
8 V
L78L08ACZTR
L78L08A
TO-92
8 V
L78L08CD13TR
78L08
SO-8
8 V
L78L09ABD13TR
78L09B
SO-8
8 V
L78L09ABZ
L78L09A
TO-92
9 V
L78L09ABUTR
8H
SOT-89
9 V
L78L09ACD13TR
78L09A
SO8
9 V
L78L09ACUTR
8H
SOT-89
9 V
L78L09ACZ-AP
L78L09A
TO-92
9 V
L78L09ACZ-TR
L78L09A
TO-92
9 V
L78L09CD13TR
L78L09A
SO-8
9 V
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
L78L
Ordering information
DocID2145 Rev 26
43/45
Part numbers
Marking
Packages
Output voltages
L78L12ACD13TR
78L12A
SO-8
12 V
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
Revision history
L78L
44/45
DocID2145 Rev 26
9 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
Updated TOP value for L78L00AC in Table 1 on page 5.
Minor text changes.
07-Sep-2012
21
Added: Table 29: Marking information.
14-Apr-2014
22
Part numbers L78LxxAB, L78LxxAC, L78LxxC changed to L78L.
Removed Table1: Device summary.
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
Updated Table 28: Order codes and Table 29: Marking information.
Minor text changes.
10-Feb-2015
24
Updated Table 29: Marking information.
Minor text changes.
10-Feb-2016
25
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.
L78L
DocID2145 Rev 26
45/45
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