LM78LXX Series
April 14, 2011
3-Terminal Positive Regulators
General Description
The LM78LXX series of three terminal positive regulators is
available with several fixed output voltages making them use-
ful 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 regula-
朱玲玲个人资料tion. 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 tech-
nology. 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 internal power dissi-
pation. If internal power dissipation becomes too high for the
heat sinking provided, the thermal shutdown circuit takes over
preventing the IC from overheating.
Features
■LM78L05 in micro SMD package
■Output voltage tolerances of ±5% over the temperature
range
■Output current of 100mA
■Internal thermal overload protection
■Output transistor safe area protection
■Internal short circuit current limit
■Available in plastic TO-92 and plastic SO-8 low profile
packages
■No external components
■Output voltages of 5.0V, 6.2V, 8.2V, 9.0V, 12V, 15V
■See AN-1112 for micro SMD considerations Connection Diagrams
SO-8 Plastic (M)
(Narrow Body)吉他谱我的歌声里
774402
Top View
8-Bump micro SMD
774424
Top View
(Bump Side Down)
(TO-92)
Plastic Package (Z)
774403
Bottom View
micro SMD Marking Orientation
774433one woman
Top View
© 2011 National Semiconductor Corporation7744www.national
LM78LXX Series 3-Terminal Positive Regulators
Ordering Information
Package NSC Drawing Output Voltage
Order Number Supplied As micro SMD BPA08AAB 5V LM78L05IBPX Reel of 3000Thin micro SMD
TPA08AAA
5V LM78L05ITP Reel of 250LM78L05ITPX Reel of 30009V
LM78L09ITPX Reel of 3000SOIC Narrow
M08A
5V
LM78L05ACM
Rail of 95LM78L05ACMX Reel of 2500LM78L05AIM Rail of 95LM78L05AIMX Reel of 250012V LM78L12ACMX Reel of 250015V LM78L15ACMX Reel of 2500TO-92
Z03A
5V LM78L05ACZ Box of 18006.2V
LM78L62ACZ Box of 18009V LM78L09ACZ Box of 180012V LM78L12ACZ Box of 180015V
LM78L15ACZ
Box of 1800
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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)Internally Limited
Input Voltage
35V
Storage Temperature
−65°C to +150°C
ESD Susceptibility (Note 2)
1kV
Operating Junction Temperature SO-8, TO-920°C to 125°C SO-8 (5V Only)-40°C to 125°C micro SMD
−40°C to 85°C Soldering Information
Infrared or Convection (20 sec.)235°C
Wave Soldering (10 sec.)
260°C (lead time)
LM78LXX Electrical Characteristics
Limits in standard typeface are for T J = 25°C, Bold typeface applies
over the entire operating temperature range of the indicated 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.
LM78L05
Unless otherwise specified, V IN = 10V Symbol Parameter
Conditions
Min Typ Max Units
V O
Output Voltage
4.8
5
5.2
V
7V ≤ V IN ≤ 20V 1mA ≤ I O ≤ 40mA (Note 3)
4.75
5.25
1mA ≤ I O ≤ 70mA (Note 3)
4.75
5.25ΔV O Line Regulation
7V ≤ V IN ≤ 20V 1875mV
8V ≤ V IN ≤ 20V
1054ΔV O Load Regulation
1mA ≤ I O ≤ 100mA 20601mA ≤ I O ≤ 40mA
530I Q Quiescent Current
35mA ΔI Q Quiescent Current Change
8V ≤ V IN ≤ 20V 1.01mA ≤ I O ≤ 40mA
0.1V n
Output Noise Voltage f = 10 Hz to 100 kHz (Note 4) 40 μV Ripple Rejection
f = 120 Hz 8V ≤ V IN ≤ 16V 4762 dB I PK
Peak Output Current
140 mA Average Output Voltage Tempco
I O = 5mA −0.65 mV/°C V IN (Min)Minimum Value of Input Voltage
Required to Maintain Line Regulation 6.77V θJA
高胜美杵歌Thermal Resistance (8-Bump micro SMD)
230.9
°C/W 3www.national
LM78LXX Series
LM78L62AC
Unless otherwise specified, V IN = 12V Symbol Parameter
Conditions
Min Typ Max Units
V O
Output Voltage
5.95
6.2
6.45
V
8.5V ≤ V IN ≤ 20V 1mA ≤ I O ≤ 40mA (Note 3)
5.9
6.5
1mA ≤ I O ≤ 70mA (Note 3)
5.9
6.5ΔV O Line Regulation
8.5V ≤ V IN ≤ 20V 65175mV
9V ≤ V IN ≤ 20V
55125ΔV O Load Regulation
1mA ≤ I O ≤ 100mA 13801mA ≤ I O ≤ 40mA
640I Q Quiescent Current 2
5.5mA ΔI Q Quiescent Current Change
8V ≤ V IN ≤ 20V 1.51mA ≤ I O ≤ 40mA
0.1V n
Output Noise Voltage f = 10 Hz to 100 kHz (Note 4)50
μV Ripple Rejection
f = 120 Hz 10V ≤ V IN ≤ 20V
4046dB I PK
Peak Output Current
140
mA Average Output Voltage Tempco
I O = 5mA −0.75mV/°C V IN (Min)
Minimum Value of Input Voltage
Required to Maintain Line Regulation
7.9
V LM78L82AC
Unless otherwise specified, V IN = 14V Symbol Parameter
Conditions
Min Typ Max Units
Output Voltage
7.87
8.2
8.53
V
11V ≤ V IN ≤ 23V 1mA ≤ I O ≤ 40mA (Note 3)
7.8黄玲照片
8.6
1mA ≤ I O ≤ 70mA (Note 3)
7.8
8.6ΔV O Line Regulation
11V ≤ V IN ≤ 23V 80175mV
12V ≤ V IN ≤ 23V
70125ΔV O Load Regulation
1mA ≤ I O ≤ 100mA 15801mA ≤ I O ≤ 40mA
840I Q Quiescent Current 2 5.5mA ΔI Q Quiescent Current Change
12V ≤ V IN ≤ 23V
1.51mA ≤ I O ≤ 40mA
0.1
V n
Output Noise Voltage f = 10 Hz to 100 kHz (Note 4)60μV Ripple Rejection
f = 120 Hz 12V ≤ V IN ≤ 22V
39
45dB I PK
Peak Output Current
140
mA www.national 4
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Symbol Parameter
Conditions
Min Typ Max Units Average Output Voltage Tempco
I O = 5mA
−0.8mV/°C V IN (Min)
Minimum Value of Input Voltage
Required to Maintain Line Regulation
9.9
V
LM78L09AC
Unless otherwise specified, V IN = 15V Symbol Parameter
Conditions
Min Typ Max Units
V O
Output Voltage
8.64
9.0
9.36
V
11.5V ≤ V IN ≤ 24V 1mA ≤ I O ≤ 40mA (Note 3)
8.55
9.45
1mA ≤ I O ≤ 70mA (Note 3)
8.55
9.45ΔV O Line Regulation
11.5V ≤ V IN ≤ 24V 100200mV
13V ≤ V IN ≤ 24V
90150ΔV O Load Regulation
1mA ≤ I O ≤ 100mA 20901mA ≤ I O ≤ 40mA
1045I Q Quiescent Current 2
5.5mA ΔI Q Quiescent Current Change
11.5V ≤ V IN ≤ 24V 1.51mA ≤ I O ≤ 40mA
0.1
V n
Output Noise Voltage 70μV Ripple Rejection
f = 120 Hz 15V ≤ V IN ≤ 25V
38
44dB I PK
Peak Output Current
140mA Average Output Voltage Tempco
I O = 5mA −0.9mV/°C V IN (Min)
Minimum Value of Input Voltage
Required to Maintain Line Regulation
10.7
V LM78L12AC
Unless otherwise specified, V IN = 19V Symbol Parameter
Conditions
Min Typ Max Units
V O
Output Voltage
11.5
12
12.5
V
14.5V ≤ V IN ≤ 27V 1mA ≤ I O ≤ 40mA (Note 3)
11.4
12.6
1mA ≤ I O ≤ 70mA (Note 3)
11.4
12.6ΔV O Line Regulation
14.5V ≤ V IN ≤ 27V 30180mV
16V ≤ V IN ≤ 27V
20110ΔV O Load Regulation
1mA ≤ I O ≤ 100mA 301001mA ≤ I O ≤ 40mA
1050I Q Quiescent Current 3
5mA ΔI Q Quiescent Current Change
16V ≤ V IN ≤ 27V 11mA ≤ I O ≤ 40mA
0.1
V n
Output Noise Voltage
80
μV 5www.national
LM78LXX Series
Symbol
Parameter Conditions Min Typ Max Units Ripple Rejection
f = 120 Hz 15V ≤ V IN ≤ 25
40
54dB I PK
Peak Output Current
140
mA Average Output Voltage Tempco
I O = 5mA
−1.0mV/°C
V IN (Min)
Minimum Value of Input Voltage
Required to Maintain Line Regulation
13.7
14.5
V
LM78L15AC
Unless otherwise specified, V IN = 23V Symbol Parameter
Conditions
Min Typ Max Units
V O
Output Voltage
14.4
15.0
15.6
V
17.5V ≤ V IN ≤ 30V 1mA ≤ I O ≤ 40mA (Note 3)
14.25
15.75
1mA ≤ I O ≤ 70mA (Note 3)
14.25
15.75ΔV O Line Regulation
17.5V ≤ V IN ≤ 30V 37250mV
20V ≤ V IN ≤ 30V
25140ΔV O Load Regulation
1mA ≤ I O ≤ 100mA 351501mA ≤ I O ≤ 40mA
1275I Q
Quiescent Current 3
5mA ΔI Q
Quiescent Current Change
20V ≤ V IN ≤ 30V 11mA ≤ I O ≤ 40mA
0.1
V n
Output Noise Voltage 90μV Ripple Rejection
f = 120 Hz
18.5V ≤ V IN ≤ 28.5V
37
51dB I PK
Peak Output Current
140mA Average Output Voltage Tempco
I O = 5mA −1.3mV/°C V IN (Min)
Minimum Value of Input Voltage
Required to Maintain Line Regulation
16.7
17.5
V Note 1:Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device outside of its stated operating conditions.
Note 2:Human body model, 1.5 k Ω in series with 100pF.Note 3:Power dissipation ≤ 0.75W.
Note 4:Recommended minimum load capacitance of 0.01μF to limit high frequency noise.Note 5:Typical thermal resistance values for the packages are: Z Package: θJC = 60 °C/W, = θJA = 230 °C/W M Package: θJA = 180 °C/W
micro SMD Package: θJA = 230.9°C/W
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L M 78L X X S e r i e s
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