L78LXXAB [STMICROELECTRONICS]
Positive voltage regulators; 正电压稳压器
| 型号： | L78LXXAB |
| 厂家： | 
ST |
| 描述： | Positive voltage regulators |
| 文件： | 总29页 (文件大小：908K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
L78LxxAB
L78LxxAC - L78LxxC
Positive voltage regulators
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
TO-92
■ No external components are required
■ Available in either 5ꢀ ꢁAꢂC or 10ꢀ ꢁꢂC
selection
SO-8
Description
SOT-89
The L78Lxx 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 L78Lxx series used as Zener diode/resistor
combination replacement, offers an effective
output impedance improvement of typically two
orders of magnitude, along with lower quiescent
current and lower noise.
Table 1.
Device summary
Part numbers
L78L33ꢂ
L78L33Aꢂ
L78L33AB
L78L05ꢂ
L78L08Aꢂ
L78L08AB
L78L09ꢂ
L78L15ꢂ
L78L15Aꢂ
L78L15AB
L78L18ꢂ
L78L09Aꢂ
L78L09AB
L78L10Aꢂ
L78L12ꢂ
L78L05Aꢂ
L78L05AB
L78L06Aꢂ
L78L06AB
L78L08ꢂ
L78L18Aꢂ
L78L24ꢂ
L78L24Aꢂ
L78L24AB
L78L12Aꢂ
L78L12AB
August 2008
Rev 16
1/29
www.st.com
29
Contents
L78LxxAB - L78LxxAC - L78LxxC
Contents
1
2
3
4
5
6
7
8
9
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2/29
L78LxxAB - L78LxxAC - L78LxxC
Diagram
1
Diagram
Figure 1.
Schematic diagram
3/29
Pin configuration
L78LxxAB - L78LxxAC - L78LxxC
2
Pin configuration
Figure 2.
Pin connection ꢁtop view, bottom view for TO-92C
PIN 1 = VOUT
PIN 2 = GND
PIN 3 = VIN
SO-8
TO-92
SOT-89
Figure 3.
Test circuits
4/29
L78LxxAB - L78LxxAC - L78LxxC
Maximum ratings
3
Maximum ratings
Table 2.
Symbol
Absolute maximum ratings
Parameter
Value
Unit
VO= 3.3 to 9 V
VO= 12 to 15 V
VO= 18 to 24 V
30
35
VI
Dꢂ Input voltage
V
40
IO
PD
Output current
100
mA
Power dissipation
Internally limited ꢁ1C
mW
°ꢂ
TSTG
Storage temperature range
-65 to 150
for L78L00Aꢂ
for L78L00AB
0 to 150
TOP
Operating junction temperature range
°ꢂ
-40 to 125
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 3.
Symbol
Thermal data
Parameter
SO-8
TO-92
SOT-89
Unit
RthJꢂ
RthJA
Thermal resistance junction-case. ꢁMaxC
Thermal resistance junction-ambient. ꢁMaxC
20
15
°ꢂ/W
°ꢂ/W
55 ꢁ1C
200
1. ꢂonsidering 6 cm2 of copper Board heat-sink.
5/29
Electrical characteristics
L78LxxAB - L78LxxAC - L78LxxC
4
Electrical characteristics
Table 4.
Electrical characteristics of L78L33C ꢁrefer to the test circuits, T = 0 to 125°ꢂ, V = 8.3 V,
J I
I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF unless otherwise specifiedC
O
I
O
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
Output voltage
TJ = 25°ꢂ
3.036
2.97
2.97
3.3
3.564
3.63
3.63
150
100
60
V
I
O = 1 to 40 mA, VI = 5.3 to 20 V
VO
ΔVO
ΔVO
Id
V
IO = 1 to 70 mA, VI = 8.3 V
VI = 5.3 to 20 V, TJ = 25°ꢂ
VI = 6.3 to 20 V, TJ = 25°ꢂ
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
30
6
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
5.5
0.2
1.5
I
O = 1 to 40 mA
ΔId
mA
VI = 6.3 to 20 V
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
40
49
µV
dB
V
VI = 6.3 to 16.3 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
41
1.7
6/29
L78LxxAB - L78LxxAC - L78LxxC
Electrical characteristics
Table 5.
Electrical characteristics of L78L05C ꢁrefer to the test circuits, T = 0 to 125°ꢂ, V = 10 V,
J
I
I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF unless otherwise specifiedC
O
I
O
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
Output voltage
TJ = 25°ꢂ
4.6
4.5
4.5
5
5.4
5.5
5.5
200
150
60
V
I
O = 1 to 40 mA, VI = 7 to 20 V
VO
ΔVO
ΔVO
Id
V
IO = 1 to 70 mA, VI = 10 V
VI = 8.5 to 20 V, TJ = 25°ꢂ
VI = 9 to 20 V, TJ = 25°ꢂ
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
30
6
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
5.5
0.2
1.5
I
O = 1 to 40 mA
ΔId
mA
VI = 8 to 20 V
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
40
49
µV
dB
V
VI = 9 to 20 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
40
1.7
Table 6.
Electrical characteristics of L78L08C ꢁrefer to the test circuits, T = 0 to 125°ꢂ, V = 14 V,
J I
I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF unless otherwise specifiedC
O
I
O
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
Output voltage
TJ = 25°ꢂ
7.36
7.2
8
8.64
8.8
8.8
200
150
80
V
I
O = 1 to 40 mA, VI = 8.5 to 20 V
VO
ΔVO
ΔVO
Id
V
IO = 1 to 70 mA, VI = 12 V
VI = 8.5 to 20 V, TJ = 25°ꢂ
VI = 9 to 20 V, TJ = 25°ꢂ
IO = 1 to 100 mA, TJ = 25°ꢂ
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
7.2
Line regulation
mV
mV
Load regulation
40
6
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
5.5
0.2
1.5
I
O = 1 to 40 mA
ΔId
mA
VI = 8 to 20 V
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
60
45
µV
dB
V
VI = 9 to 20 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
36
1.7
7/29
Electrical characteristics
L78LxxAB - L78LxxAC - L78LxxC
Table 7.
Electrical characteristics of L78L09C ꢁrefer to the test circuits, T = 0 to 125°ꢂ, V = 15 V,
J I
I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF unless otherwise specifiedC
O
I
O
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
Output voltage
TJ = 25°ꢂ
8.28
8.1
9
9.72
9.9
9.9
250
200
80
V
I
O = 1 to 40 mA, VI = 11.5 to 23 V
VO
ΔVO
ΔVO
Id
V
IO = 1 to 70 mA, VI = 15 V
VI = 11.5 to 23 V, TJ = 25°ꢂ
VI = 12 to 23 V, TJ = 25°ꢂ
8.1
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
40
6
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
5.5
0.2
1.5
I
O = 1 to 40 mA
ΔId
mA
VI = 12 to 23 V
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
70
44
µV
dB
V
VI = 12 to 23 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
36
1.7
Table 8.
Electrical characteristics of L78L10C ꢁrefer to the test circuits, T = 0 to 125°ꢂ, V = 16 V,
J I
I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF unless otherwise specifiedC
O
I
O
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
Output voltage
TJ = 25°ꢂ
9.2
9
10
10.8
11
V
I
O = 1 to 40 mA, VI = 12.5 to 23 V
VO
ΔVO
ΔVO
Id
V
IO = 1 to 70 mA, VI = 16 V
VI = 12.5 to 23 V, TJ = 25°ꢂ
VI = 13 to 23 V, TJ = 25°ꢂ
9
11
230
170
80
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
40
6
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
5.5
0.1
1.5
I
O = 1 to 40 mA
ΔId
mA
VI = 13 to 23 V
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10Hz to 100kHz, TJ = 25°ꢂ
60
45
µV
dB
V
VI = 14 to 23 V, f = 120Hz
IO = 40 mA, TJ = 25°ꢂ
37
1.7
8/29
L78LxxAB - L78LxxAC - L78LxxC
Electrical characteristics
Table 9.
Electrical characteristics of L78L12C ꢁrefer to the test circuits, T = 0 to 125°ꢂ, V = 19 V,
J I
I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF unless otherwise specifiedC
O
I
O
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
Output voltage
TJ = 25°ꢂ
11.1
10.8
10.8
12
12.9
13.2
13.2
250
200
100
50
V
I
O = 1 to 40 mA, VI = 14.5 to 27 V
VO
ΔVO
ΔVO
Id
V
IO = 1 to 70 mA, VI = 19 V
VI = 14.5 to 27 V, TJ = 25°ꢂ
VI = 16 to 27 V, TJ = 25°ꢂ
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
6.5
6
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
I
O = 1 to 40 mA
0.2
1.5
ΔId
mA
VI = 16 to 27 V
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
80
42
µV
dB
V
VI = 15 to 25 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
36
1.7
Table 10. Electrical characteristics of L78L15C ꢁrefer to the test circuits, T = 0 to 125°ꢂ, V = 23 V,
J
I
I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF unless otherwise specifiedC
O
I
O
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
Output voltage
TJ = 25°ꢂ
13.8
13.5
13.5
15
16.2
16.5
16.5
300
250
150
75
V
I
O = 1 to 40 mA, VI = 17.5 to 30 V
VO
ΔVO
ΔVO
Id
V
IO = 1 to 70 mA, VI = 23 V
VI = 17.5 to 30 V, TJ = 25°ꢂ
VI = 20 to 30 V, TJ = 25°ꢂ
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
6.5
6
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
I
O = 1 to 40 mA
0.2
1.5
ΔId
mA
VI = 20 to 30 V
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
90
39
µV
dB
V
VI = 18.5 to 28.5 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
33
1.7
9/29
Electrical characteristics
L78LxxAB - L78LxxAC - L78LxxC
Table 11. Electrical characteristics of L78L18C ꢁrefer to the test circuits, T = 0 to 125°ꢂ, V = 27 V,
J
I
I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF unless otherwise specifiedC
O
I
O
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
Output voltage
TJ = 25°ꢂ
16.6
16.2
16.2
18
19.4
19.8
19.8
320
270
170
85
V
I
O = 1 to 40 mA, VI = 22 to 33 V
VO
ΔVO
ΔVO
Id
V
IO = 1 to 70 mA, VI = 27 V
VI = 22 to 33 V, TJ = 25°ꢂ
VI = 22 to 33 V, TJ = 25°ꢂ
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
6.5
6
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
I
O = 1 to 40 mA
0.2
1.5
ΔId
mA
VI = 23 to 33 V
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
120
38
µV
dB
V
VI = 23 to 33 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
32
1.7
Table 12. Electrical characteristics of L78L24C ꢁrefer to the test circuits, T = 0 to 125°ꢂ, V = 33 V,
J
I
I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF unless otherwise specifiedC
O
I
O
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
Output voltage
TJ = 25°ꢂ
22.1
21.6
21.6
24
25.9
26.4
26.4
350
300
200
100
6.5
V
I
O = 1 to 40 mA, VI = 27 to 38 V
VO
ΔVO
ΔVO
Id
V
IO = 1 to 70 mA, VI = 33 V
VI = 27 to 38 V, TJ = 25°ꢂ
VI = 28 to 38 V, TJ = 25°ꢂ
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
6
I
O = 1 to 40 mA
0.2
ΔId
mA
VI = 28 to 38 V
1.5
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
200
37
µV
dB
V
VI = 29 to 35 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
30
1.7
10/29
L78LxxAB - L78LxxAC - L78LxxC
Electrical characteristics
Table 13. Electrical characteristics of L78L33AB and L78L33AC ꢁrefer to the test circuits,
V = 8.3 V, I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF, T = 0 to 125°ꢂ for L78L33Aꢂ,
I
O
I
O
J
T = -40 to 125°ꢂ for L78L33AB, unless otherwise specifiedC
J
Symbol
Parameter
Output voltage
Test conditions
Min.
Typ.
Max.
Unit
VO
TJ = 25°ꢂ
O = 1 to 40 mA, VI = 5.3 to 20 V
3.168
3.135
3.135
3.3
3.432
3.465
3.465
150
100
60
V
I
VO
ΔVO
ΔVO
Id
Output voltage
V
IO = 1 to 70 mA, VI = 8.3 V
VI = 5.3 to 20 V, TJ = 25°ꢂ
VI = 6.3 to 20 V, TJ = 25°ꢂ
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
30
6
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
5.5
I
O = 1 to 40 mA
0.1
ΔId
mA
VI = 6.3 to 20 V
1.5
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
40
49
µV
dB
V
VI = 6.3 to 16.3 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
41
1.7
Table 14. Electrical characteristics of L78L05AB and L78L05AC ꢁrefer to the test circuits,
V = 10 V, I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF, T = 0 to 125°ꢂ for L78L05Aꢂ,
I
O
I
O
J
T = -40 to 125°ꢂ for L78L05AB, unless otherwise specifiedC
J
Symbol
Parameter
Output voltage
Test conditions
Min.
Typ.
Max.
Unit
VO
TJ = 25°ꢂ
O = 1 to 40 mA, VI = 7 to 20 V
4.8
5
5.2
5.25
5.25
150
100
60
V
I
4.75
4.75
VO
ΔVO
ΔVO
Id
Output voltage
V
IO = 1 to 70 mA, VI = 10 V
VI = 7 to 20 V, TJ = 25°ꢂ
VI = 8 to 20 V, TJ = 25°ꢂ
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
30
6
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
5.5
0.1
1.5
I
O = 1 to 40 mA
ΔId
mA
VI = 8 to 20 V
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
40
49
µV
dB
VI = 8 to 18 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
41
1.7
V
11/29
Electrical characteristics
L78LxxAB - L78LxxAC - L78LxxC
Table 15. Electrical characteristics of L78L06AB and L78L06AC ꢁrefer to the test circuits,
V = 12 V, I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF, T = 0 to 125°ꢂ for L78L06Aꢂ,
I
O
I
O
J
T = -40 to 125°ꢂ for L78L06AB, unless otherwise specifiedC
J
Symbol
Parameter
Output voltage
Test conditions
Min.
Typ.
Max.
Unit
VO
TJ = 25°ꢂ
O = 1 to 40 mA, VI = 8.5 to 20 V
5.76
5.7
6
6.24
6.3
6.3
150
100
60
V
I
VO
ΔVO
ΔVO
Id
Output voltage
V
IO = 1 to 70 mA, VI = 12 V
VI = 8.5 to 20 V, TJ = 25°ꢂ
VI = 9 to 20 V, TJ = 25°ꢂ
5.7
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
30
6
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
5.5
0.1
1.5
I
O = 1 to 40 mA
ΔId
mA
VI = 9 to 20 V
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
50
46
µV
dB
V
VI = 9 to 20 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
39
1.7
Table 16. Electrical characteristics of L78L08AB and L78L08AC ꢁrefer to the test circuits,
V = 14 V, I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF, T = 0 to 125°ꢂ for L78L08Aꢂ,
I
O
I
O
J
T = -40 to 125°ꢂ for L78L08AB, unless otherwise specifiedC
J
Symbol
Parameter
Output voltage
Test conditions
Min.
Typ.
Max.
Unit
VO
TJ = 25°ꢂ
O = 1 to 40 mA, VI = 10.5 to 23 V
7.68
7.6
8
8.32
8.4
8.4
175
125
80
V
I
VO
ΔVO
ΔVO
Id
Output voltage
V
IO = 1 to 70 mA, VI = 14 V
VI = 10.5 to 23 V, TJ = 25°ꢂ
VI = 11 to 23 V, TJ = 25°ꢂ
7.6
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
40
6
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
5.5
0.1
1.5
I
O = 1 to 40 mA
ΔId
mA
VI = 11 to 23 V
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
60
45
µV
dB
V
VI = 12 to 23 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
37
1.7
12/29
L78LxxAB - L78LxxAC - L78LxxC
Electrical characteristics
Table 17. Electrical characteristics of L78L09AB and L78L09AC ꢁrefer to the test circuits,
V = 15 V, I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF, T = 0 to 125°ꢂ for L78L09Aꢂ,
I
O
I
O
J
T = -40 to 125°ꢂ for L78L09AB, unless otherwise specifiedC
J
Symbol
Parameter
Output voltage
Test conditions
Min.
Typ.
Max.
Unit
VO
TJ = 25°ꢂ
O = 1 to 40 mA, VI = 11.5 to 23 V
8.64
8.55
8.55
9
9.36
9.45
9.45
225
150
80
V
I
VO
ΔVO
ΔVO
Id
Output voltage
V
IO = 1 to 70 mA, VI = 15 V
VI = 11.5 to 23 V, TJ = 25°ꢂ
VI = 12 to 23 V, TJ = 25°ꢂ
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
40
6
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
5.5
0.1
1.5
I
O = 1 to 40 mA
ΔId
mA
VI = 12 to 23 V
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
70
44
µV
dB
V
VI = 12 to 23 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
37
1.7
Table 18. Electrical characteristics of L78L10AC ꢁrefer to the test circuits,
V = 16 V, I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF, T = 0 to 125°ꢂ for L78L10Aꢂ,
I
O
I
O
J
T = -40 to 125°ꢂ for L78L10AB, unless otherwise specifiedC
J
Symbol
Parameter
Output voltage
Test conditions
Min.
Typ.
Max.
Unit
VO
TJ = 25°ꢂ
O = 1 to 40 mA, VI = 12.5 to 23 V
9.6
9.5
9.5
10
10.4
10.5
10.5
230
170
80
V
I
VO
ΔVO
ΔVO
Id
Output voltage
V
IO = 1 to 70 mA, VI = 16 V
VI = 12.5 to 23 V, TJ = 25°ꢂ
VI = 13 to 23 V, TJ = 25°ꢂ
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
40
6
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
5.5
0.1
1.5
I
O = 1 to 40 mA
ΔId
mA
VI = 13 to 23 V
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
60
45
µV
dB
VI = 14 to 23 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
37
1.7
V
13/29
Electrical characteristics
L78LxxAB - L78LxxAC - L78LxxC
Table 19. Electrical characteristics of L78L12AB and L78L12AC ꢁrefer to the test circuits,
V = 19 V, I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF, T = 0 to 125°ꢂ for L78L12Aꢂ,
I
O
I
O
J
T = -40 to 125°ꢂ for L78L12AB, unless otherwise specifiedC
J
Symbol
Parameter
Output voltage
Test conditions
Min.
Typ.
Max.
Unit
VO
TJ = 25°ꢂ
O = 1 to 40 mA, VI = 14.5 to 27 V
11.5
11.4
11.4
12
12.5
12.6
12.6
250
200
100
50
V
I
VO
ΔVO
ΔVO
Id
Output voltage
V
IO = 1 to 70 mA, VI = 19 V
VI = 14.5 to 27 V, TJ = 25°ꢂ
VI = 16 to 27 V, TJ = 25°ꢂ
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
6.5
6
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
I
O = 1 to 40 mA
0.1
1.5
ΔId
mA
VI = 16 to 27 V
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
80
42
µV
dB
V
VI = 15 to 25 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
37
1.7
Table 20. Electrical characteristics of L78L15AB and L78L15AC ꢁrefer to the test circuits,
V = 23 V, I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF, T = 0 to 125°ꢂ for L78L15Aꢂ,
I
O
I
O
J
T = -40 to 125°ꢂ for L78L15AB, unless otherwise specifiedC
J
Symbol
Parameter
Output voltage
Test conditions
Min.
Typ.
Max.
Unit
VO
TJ = 25°ꢂ
O = 1 to 40 mA, VI = 17.5 to 30 V
14.4
14.25
14.25
15
15.6
15.75
15.75
300
250
150
75
V
I
VO
ΔVO
ΔVO
Id
Output voltage
V
IO = 1 to 70 mA, VI = 23 V
VI = 17.5 to 30 V, TJ = 25°ꢂ
VI = 20 to 30 V, TJ = 25°ꢂ
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
6.5
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
6
I
O = 1 to 40 mA
0.1
ΔId
mA
VI = 20 to 30 V
1.5
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
90
39
µV
dB
V
VI = 18.5 to 28.5 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
34
1.7
14/29
L78LxxAB - L78LxxAC - L78LxxC
Electrical characteristics
Table 21. Electrical characteristics of L78L18AC ꢁrefer to the test circuits,
V = 27 V, I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF, T = 0 to 125°ꢂ for L78L18Aꢂ,
I
O
I
O
J
T = -40 to 125°ꢂ for L78L18AB, unless otherwise specifiedC
J
Symbol
Parameter
Output voltage
Test conditions
Min.
Typ.
Max.
Unit
VO
TJ = 25°ꢂ
O = 1 to 40 mA, VI = 22 to 33 V
17.3
17.1
17.1
18
18.7
18.9
18.9
320
270
170
85
V
I
VO
ΔVO
ΔVO
Id
Output voltage
V
IO = 1 to 70 mA, VI = 27 V
VI = 22 to 33 V, TJ = 25°ꢂ
VI = 22 to 33 V, TJ = 25°ꢂ
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
6.5
6
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
I
O = 1 to 40 mA
0.1
1.5
ΔId
mA
VI = 23 to 33 V
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
120
38
µV
dB
V
VI = 23 to 33 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
33
1.7
Table 22. Electrical characteristics of L78L24AB and L78L24AC ꢁrefer to the test circuits,
V = 33 V, I = 40 mA, ꢂ = 0.33 µF, ꢂ = 0.1 µF, T = 0 to 125°ꢂ for L78L24Aꢂ,
I
O
I
O
J
T = -40 to 125°ꢂ for L78L24AB, unless otherwise specifiedC
J
Symbol
Parameter
Output voltage
Test conditions
Min.
Typ.
Max.
Unit
VO
TJ = 25°ꢂ
O = 1 to 40 mA, VI = 27 to 38 V
23
24
25
25.2
25.2
350
300
200
100
6.5
V
I
22.8
22.8
VO
ΔVO
ΔVO
Id
Output voltage
V
IO = 1 to 70 mA, VI = 33 V
VI = 27 to 38 V, TJ = 25°ꢂ
VI = 28 to 38 V, TJ = 25°ꢂ
Line regulation
mV
mV
I
O = 1 to 100 mA, TJ = 25°ꢂ
Load regulation
IO = 1 to 40 mA, TJ = 25°ꢂ
TJ = 25°ꢂ
mA
mA
Quiescent current
Quiescent current change
TJ = 125°ꢂ
6
I
O = 1 to 40 mA
0.1
ΔId
mA
VI = 28 to 38 V
1.5
eN
SVR
Vd
Output noise voltage
Supply voltage rejection
Dropout voltage
B =10 Hz to 100 kHz, TJ = 25°ꢂ
200
37
µV
dB
VI = 29 to 33 V, f = 120 Hz
IO = 40 mA, TJ = 25°ꢂ
31
1.7
V
15/29
Typical performance
L78LxxAB - L78LxxAC - L78LxxC
L78L05/12/24 load characteristics
5
Typical performance
Figure 4.
L78L05/12 output voltage vs
ambient temperature
Figure 5.
Figure 6.
L78L05/12/24 thermal shutdown
Figure 7.
L78L05/12 quiescent current vs
output current
Figure 8.
L78L05 quiescent current vs input Figure 9.
voltage
L78L05/12/24 output characteristics
16/29
L78LxxAB - L78LxxAC - L78LxxC
Typical performance
Figure 10. L78L05/12/24 ripple rejection
Figure 11. L78L05 dropout characteristics
Figure 12. L78Lxx short circuit output current
17/29
Typical application
L78LxxAB - L78LxxAC - L78LxxC
6
Typical application
Figure 13. High output current short circuit protected
Figure 14. Edit boost circuit
Figure 15. Current regulator
18/29
L78LxxAB - L78LxxAC - L78LxxC
Typical application
Figure 16. Adjustable output regulator
19/29
Package mechanical data
L78LxxAB - L78LxxAC - L78LxxC
7
Package mechanical data
®
In order to meet environmental requirements, ST offers these devices in EꢂOPAꢂK
packages. These packages have a lead-free second level interconnect. The category of
second Level Interconnect is marked on the package and on the inner box label, in
compliance with JEDEꢂ Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. EꢂOPAꢂK is an ST trademark.
EꢂOPAꢂK specifications are available at: www.st.com.
20/29
L78LxxAB - L78LxxAC - L78LxxC
Package mechanical data
SO-8 mechanical data
mm.
Typ.
inch.
Dim.
Min.
Max.
Min.
Typ.
Max.
A
A1
A2
B
1.35
1.75
0.053
0.069
0.10
1.10
0.33
0.19
4.80
3.80
0.25
1.65
0.51
0.25
5.00
4.00
0.04
0.010
0.065
0.020
0.010
0.197
0.157
0.043
0.013
0.007
0.189
0.150
ꢂ
D
E
e
1.27
0.050
H
5.80
0.25
0.40
6.20
0.50
1.27
0.228
0.010
0.016
0.244
0.020
0.050
h
L
k
8° ꢁmax.C
ddd
0.1
0.04
0016023/ꢂ
21/29
Package mechanical data
L78LxxAB - L78LxxAC - L78LxxC
SOT-89 mechanical data
mm.
mils.
Dim.
Min.
Typ.
Max.
1.6
Min.
55.1
17.3
14.2
13.8
13.8
173.2
63.8
90.2
55.9
115.0
155.1
35.0
Typ.
Max.
63.0
A
B
1.4
0.44
0.36
0.35
0.35
4.4
0.56
0.48
0.44
0.44
4.6
22.0
B1
ꢂ
18.9
17.3
ꢂ1
D
17.3
181.1
72.0
D1
E
1.62
2.29
1.42
2.92
3.94
0.89
1.83
2.6
102.4
61.8
e
1.57
3.07
4.25
1.2
e1
H
120.9
167.3
47.2
L
P025H
22/29
L78LxxAB - L78LxxAC - L78LxxC
Package mechanical data
TO-92 mechanical data
mm.
Typ.
mils.
Dim.
Min.
4.32
0.36
4.45
3.30
2.41
1.14
12.7
2.16
0.92
0.41
Max.
4.95
0.51
4.95
3.94
2.67
1.40
15.49
2.41
1.52
0.56
Min.
170.1
14.2
Typ.
Max.
194.9
20.1
A
b
D
E
175.2
129.9
94.9
194.9
155.1
105.1
55.1
e
e1
L
44.9
500.0
85.0
609.8
94.9
R
S1
W
α
36.2
59.8
16.1
22.0
5°
5°
0102782/D
23/29
Package mechanical data
L78LxxAB - L78LxxAC - L78LxxC
Tape & reel SO-8 mechanical data
mm.
Typ.
inch.
Typ.
Dim.
Min.
Max.
330
Min.
Max.
12.992
0.519
A
ꢂ
D
12.8
20.2
60
13.2
0.504
0.795
2.362
N
T
22.4
8.5
5.9
2.3
4.1
8.1
0.882
0.335
0.232
0.090
0.161
0.319
Ao
Bo
Ko
Po
P
8.1
5.5
2.1
3.9
7.9
0.319
0.216
0.082
0.153
0.311
24/29
L78LxxAB - L78LxxAC - L78LxxC
Package mechanical data
Tape & reel SOT-89 mechanical data
mm.
Typ.
inch.
Dim.
Min.
Max.
180
Min.
Typ.
Max.
7.086
0.519
A
ꢂ
12.8
20.2
60
13.0
13.2
0.504
0.795
2.362
0.512
D
N
T
14.4
4.90
4.50
1.90
4.1
0.567
0.193
0.177
0.075
0.161
0.319
Ao
Bo
Ko
Po
P
4.70
4.30
1.70
3.9
4.80
4.40
1.80
4.0
0.185
0.169
0.067
0.153
0.311
0.189
0.173
0.071
0.157
0.315
7.9
8.0
8.1
25/29
Package mechanical data
L78LxxAB - L78LxxAC - L78LxxC
Tape & reel for TO-92 mechanical data
mm.
Typ.
inch.
Typ.
Dim.
Min.
Max.
Min.
Max.
A1
T
T1
T2
d
4.80
3.80
1.60
2.30
0.48
0.189
0.150
0.063
0.091
0.019
P0
P2
F1, F2
delta H
W
W0
W1
W2
H
12.5
5.65
2.44
12.9
7.05
2.94
0.492
0.222
0.096
0.508
0.278
0.116
2.54
2
18.00
0.100
0.079
0.709
17.5
5.7
8.5
19.0
6.3
9.25
0.689
0.224
0.335
0.748
0.248
0.364
0.50
18.50
0.20
0.728
18.70
16.50
0.726
0.650
H0
H1
D0
15.50
0.610
0.150
25.00
0.984
3.8
4.2
0.165
t
0.90
3
1
50
360
30
0.035
0.118
0.039
1.968
14.173
1.181
L1
delta P
u
Φ1
Φ2
delta P
T
A1
T2
T1
H1
delta H
H
H0
d
L
W2
l1
W
W0
W1
F1
F2
P0
D0
t
P2
DRAWING NOT IN SꢂALE
26/29
L78LxxAB - L78LxxAC - L78LxxC
Order codes
8
Order codes
Table 23. Order codes
Packaging
Part numbers
Output voltage
SO-8
TO92 (BAG) (1)
SOT-89
L78L33ꢂ
L78L33Aꢂ
L78L33AB
L78L05ꢂ
L78L33ꢂD-TR
L78L33AꢂD13TR
L78L33ABD-TR
L78L05ꢂD13TR
L78L05AꢂD13TR
L78L05ABD13TR
L78L06AꢂD13TR
L78L06ABD13TR
L78L08ꢂD13TR
L78L08AꢂD13TR
L78L08ABD13TR
L78L09ꢂD13TR
L78L09AꢂD13TR
L78L09ABD13TR
3.3 V
3.3 V
3.3 V
5 V
L78L33AꢂZ
L78L33ABZ
L78L05ꢂZ
L78L33AꢂUTR
L78L33ABUTR
L78L05Aꢂ
L78L05AB
L78L06Aꢂ
L78L06AB
L78L08ꢂ
L78L05AꢂZ
L78L05ABZ
L78L06AꢂZ
L78L06ABZ
L78L05AꢂUTR
L78L05ABUTR
L78L06AꢂUTR
L78L06ABUTR
5 V
5 V
6 V
6 V
8 V
L78L08Aꢂ
L78L08AB
L78L09ꢂ
L78L08AꢂZ
L78L08ABZ
L78L08AꢂUTR
L78L08ABUTR
8 V
8 V
9 V
L78L09Aꢂ
L78L09AB
L78L10Aꢂ
L78L12ꢂ
L78L09AꢂZ
L78L09ABZ
L78L09AꢂUTR
L78L09ABUTR
L78L10AꢂUTR
9 V
9 V
10 V
12 V
12 V
12 V
15 V
15 V
15 V
18 V
18 V
24 V
24 V
24 V
L78L12ꢂD13TR
L78L12AꢂD13TR
L78L12ABD-TR
L78L15ꢂD-TR
L78L12Aꢂ
L78L12AB
L78L15ꢂ
L78L12AꢂZ
L78L12ABZ
L78L12AꢂUTR
L78L12ABUTR
L78L15Aꢂ
L78L15AB
L78L18ꢂ
L78L15AꢂD13TR
L78L15AꢂZ
L78L15ABZ
L78L15AꢂUTR
L78L15ABUTR
L78L18ꢂD13TR
L78L18AꢂD13TR
L78L24ꢂD-TR
L78L18Aꢂ
L78L24ꢂ
L78L18AꢂUTR
L78L24Aꢂ
L78L24AB
L78L24AꢂD-TR
L78L24ABD13TR
L78L24AꢂZ
L78L24ABZ
L78L24AꢂUTR
L78L24ABUTR
1. Available in Ammopak with the suffix "-AP" or in Tape & Reel with the suffix "TR". Please note that in these cases pins are
shaped according to Tape & Reel specifications.
27/29
Revision history
L78LxxAB - L78LxxAC - L78LxxC
9
Revision history
Table 24. Document revision history
Date
Revision
Changes
14-Mar-2005
15-Mar-2005
23-Dec-2005
12-Sep-2006
07-Jun-2007
18-Sep-2007
15-Jul-2008
18-Aug-2008
9
Add tape & reel for TO-92.
Add note on Table 3.
10
11
12
13
14
15
16
Mistake on ordering Table in header.
Order codes updated.
Order codes updated.
Added Table 1 in cover page.
Modified: Table 1 on page 1 and Table 23 on page 27.
Modified Figure 12 on page 17.
28/29
L78LxxAB - L78LxxAC - L78LxxC
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