LM78LXX Series 3-Terminal Positive Regulators
April 2006
LM78LXX Series
3-Terminal Positive Regulators
General Description
The LM78LXX series of three terminal positive regulators is
available with several fixed output voltages making them
useful in a wide range of applications. When used as a zener
diode/resistor combination replacement, the LM78LXX usu-
ally results in an effective output impedance improvement of
two orders of magnitude, and lower quiescent current. These
regulators can provide local on card regulation, eliminating
the distribution problems associated with single point regu-
lation. The voltages available allow the LM78LXX to be used
in logic systems, instrumentation, HiFi, and other solid state
electronic equipment.
The LM78LXX is available in the plastic TO-92 (Z) package,
the plastic SO-8 (M) package and a chip sized package
(8-Bump micro SMD) using National’s micro SMD package
technology. With adequate heat sinking the regulator can
deliver 100mA output current. Current limiting is included to
limit the peak output current to a safe value. Safe area
protection for the output transistors is provided to limit inter-
nal power dissipation. If internal power dissipation becomes
too high for the heat sinking provided, the thermal shutdown
circuit takes over preventing the IC from overheating.
Features
n
LM78L05 in micro SMD package
n
Output voltage tolerances of
±
5% over the temperature
range
n
Output current of 100mA
n
Internal thermal overload protection
n
Output transistor safe area protection
n
Internal short circuit current limit
n
Available in plastic TO-92 and plastic SO-8 low profile
packages
n
No external components
n
Output voltages of 5.0V, 6.2V, 8.2V, 9.0V, 12V, 15V
n
See AN-1112 for micro SMD considerations
Connection Diagrams
SO-8 Plastic (M)
(Narrow Body)
(TO-92)
Plastic Package (Z)
00774403
00774402
Top View
8-Bump micro SMD
Bottom View
micro SMD Marking Orientation
00774424
Top View
(Bump Side Down)
00774433
Top View
© 2006 National Semiconductor Corporation
DS007744
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LM78LXX Series
Ordering Information
Package
micro SMD
NSC Drawing
BPA08AAB
Output Voltage
5V
5V
Thin micro SMD
TPA08AAA
9V
5V
SOIC Narrow
M08A
12V
15V
5V
6.2V
TO-92
Z03A
8.2V
9V
12V
15V
Order Number
LM78L05IBP
LM78L05IBPX
LM78L05ITP
LM78L05ITPX
LM78L09ITP
LM78L09ITPX
LM78L05ACM
LM78L05ACMX
LM78L12ACM
LM78L12ACMX
LM78L15ACM
LM78L15ACMX
LM78L05ACZ
LM78L62ACZ
LM78L82ACZ
LM78L09ACZ
LM78L12ACZ
LM78L15ACZ
Supplied As
Reel of 250
Reel of 3000
Reel of 250
Reel of 3000
Reel of 250
Reel of 3000
Rail of 95
Reel of 2500
Rail of 95
Reel of 2500
Rail of 95
Reel of 2500
Box of 1800
Box of 1800
Box of 1800
Box of 1800
Box of 1800
Box of 1800
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2
LM78LXX Series
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Power Dissipation (Note 5)
Input Voltage
Storage Temperature
ESD Susceptibility (Note 2)
Internally Limited
35V
−65˚C to +150˚C
1kV
Operating Junction Temperature
SO-8, TO-92
micro SMD
Soldering Information
Infrared or Convection (20 sec.)
Wave Soldering (10 sec.)
235˚C
260˚C (lead time)
0˚C to 125˚C
−40˚C to 85˚C
Limits in standard typeface are for T
J
= 25˚C,
Bold typeface
applies over 0˚C to 125˚C for SO-8 and TO-92 packages, and −40˚C to 85˚C for micro SMD package.
Limits are guaran-
teed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless other-
wise specified: I
O
= 40mA, C
I
= 0.33µF, C
O
= 0.1µF.
LM78LXX Electrical Characteristics
LM78L05
Unless otherwise specified, V
IN
= 10V
Symbol
V
O
Output Voltage
7V
≤
V
IN
≤
20V
1mA
≤
I
O
≤
40mA
(Note 3)
1mA
≤
I
O
≤
70mA
(Note 3)
∆V
O
∆V
O
I
Q
∆I
Q
V
n
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Ripple Rejection
8V
≤
V
IN
≤
20V
1mA
≤
I
O
≤
40mA
f = 10 Hz to 100 kHz
(Note 4)
f = 120 Hz
8V
≤
V
IN
≤
16V
47
40
62
140
I
O
= 5mA
−0.65
6.7
230.9
7
7V
≤
V
IN
≤
20V
8V
≤
V
IN
≤
20V
1mA
≤
I
O
≤
100mA
1mA
≤
I
O
≤
40mA
Parameter
Conditions
Min
4.8
4.75
Typ
5
Max
5.2
5.25
Units
V
4.75
18
10
20
5
3
5.25
75
54
60
30
5
1.0
0.1
µV
dB
mA
mV/˚C
V
˚C/W
mA
mV
I
PK
Peak Output Current
Average Output Voltage Tempco
V
IN
(Min)
θ
JA
Minimum Value of Input Voltage
Required to Maintain Line Regulation
Thermal Resistance
(8-Bump micro SMD)
LM78L62AC
Unless otherwise specified, V
IN
= 12V
Symbol
V
O
Output Voltage
8.5V
≤
V
IN
≤
20V
1mA
≤
I
O
≤
40mA
(Note 3)
1mA
≤
I
O
≤
70mA
(Note 3)
Parameter
Conditions
Min
5.95
5.9
Typ
6.2
Max
6.45
6.5
Units
V
5.9
6.5
3
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LM78LXX Series
LM78LXX Electrical Characteristics
Limits in standard typeface are for T
J
= 25˚C,
Bold typeface
applies over 0˚C to 125˚C for SO-8 and TO-92 packages, and −40˚C to 85˚C for micro SMD package.
Limits are
guaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless
otherwise specified: I
O
= 40mA, C
I
= 0.33µF, C
O
= 0.1µF. (Continued)
LM78L62AC
Symbol
∆V
O
∆V
O
I
Q
∆I
Q
V
n
(Continued)
Unless otherwise specified, V
IN
= 12V
Parameter
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Ripple Rejection
8V
≤
V
IN
≤
20V
1mA
≤
I
O
≤
40mA
f = 10 Hz to 100 kHz
(Note 4)
f = 120 Hz
10V
≤
V
IN
≤
20V
40
50
46
140
I
O
= 5mA
−0.75
7.9
Conditions
8.5V
≤
V
IN
≤
20V
9V
≤
V
IN
≤
20V
1mA
≤
I
O
≤
100mA
1mA
≤
I
O
≤
40mA
Min
Typ
65
55
13
6
2
Max
175
125
80
40
5.5
1.5
0.1
µV
dB
mA
mV/˚C
V
mA
mV
Units
I
PK
Peak Output Current
Average Output Voltage Tempco
V
IN
(Min)
Minimum Value of Input Voltage
Required to Maintain Line Regulation
LM78L82AC
Unless otherwise specified, V
IN
= 14V
Symbol
V
O
Output Voltage
11V
≤
V
IN
≤
23V
1mA
≤
I
O
≤
40mA
(Note 3)
1mA
≤
I
O
≤
70mA
(Note 3)
∆V
O
∆V
O
I
Q
∆I
Q
V
n
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Ripple Rejection
12V
≤
V
IN
≤
23V
1mA
≤
I
O
≤
40mA
f = 10 Hz to 100 kHz
(Note 4)
f = 120 Hz
12V
≤
V
IN
≤
22V
39
60
45
140
I
O
= 5mA
−0.8
9.9
11V
≤
V
IN
≤
23V
12V
≤
V
IN
≤
23V
1mA
≤
I
O
≤
100mA
1mA
≤
I
O
≤
40mA
Parameter
Conditions
Min
7.87
7.8
Typ
8.2
Max
8.53
8.6
Units
V
7.8
80
70
15
8
2
8.6
175
125
80
40
5.5
1.5
0.1
µV
dB
mA
mV/˚C
V
mA
mV
I
PK
Peak Output Current
Average Output Voltage Tempco
V
IN
(Min)
Minimum Value of Input Voltage
Required to Maintain Line Regulation
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4
LM78LXX Series
LM78LXX Electrical Characteristics
Limits in standard typeface are for T
J
= 25˚C,
Bold typeface
applies over 0˚C to 125˚C for SO-8 and TO-92 packages, and −40˚C to 85˚C for micro SMD package.
Limits are
guaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless
otherwise specified: I
O
= 40mA, C
I
= 0.33µF, C
O
= 0.1µF. (Continued)
LM78L09AC
Unless otherwise specified, V
IN
= 15V
Symbol
V
O
Output Voltage
11.5V
≤
V
IN
≤
24V
1mA
≤
I
O
≤
40mA
(Note 3)
1mA
≤
I
O
≤
70mA
(Note 3)
∆V
O
∆V
O
I
Q
∆I
Q
V
n
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Ripple Rejection
f = 120 Hz
15V
≤
V
IN
≤
25V
38
11.5V
≤
V
IN
≤
24V
1mA
≤
I
O
≤
40mA
70
44
140
I
O
= 5mA
−0.9
10.7
11.5V
≤
V
IN
≤
24V
13V
≤
V
IN
≤
24V
1mA
≤
I
O
≤
100mA
1mA
≤
I
O
≤
40mA
Parameter
Conditions
Min
8.64
8.55
Typ
9.0
Max
9.36
9.45
Units
V
8.55
100
90
20
10
2
9.45
200
150
90
45
5.5
1.5
0.1
µV
dB
mA
mV/˚C
V
mA
mV
I
PK
Peak Output Current
Average Output Voltage Tempco
V
IN
(Min)
Minimum Value of Input Voltage
Required to Maintain Line Regulation
LM78L12AC
Unless otherwise specified, V
IN
= 19V
Symbol
V
O
Output Voltage
14.5V
≤
V
IN
≤
27V
1mA
≤
I
O
≤
40mA
(Note 3)
1mA
≤
I
O
≤
70mA
(Note 3)
∆V
O
∆V
O
I
Q
∆I
Q
V
n
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Ripple Rejection
f = 120 Hz
15V
≤
V
IN
≤
25
40
16V
≤
V
IN
≤
27V
1mA
≤
I
O
≤
40mA
80
54
140
I
O
= 5mA
−1.0
14.5V
≤
V
IN
≤
27V
16V
≤
V
IN
≤
27V
1mA
≤
I
O
≤
100mA
1mA
≤
I
O
≤
40mA
Parameter
Conditions
Min
11.5
11.4
Typ
12
Max
12.5
12.6
Units
V
11.4
30
20
30
10
3
12.6
180
110
100
50
5
1
0.1
µV
dB
mA
mV/˚C
mA
mV
I
PK
Peak Output Current
Average Output Voltage Tempco
5
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