LM7805 • LM7806 • LM7808 • LM7809 • LM7810 • LM7812 • LM7815 • LM7818 • LM7824 • LM7805A • LM7806A • LM7808A
•LM7809A • LM7810A • LM7812A • LM7815A • LM7818A • LM7824A 3-Terminal 1A Positive Voltage Regulator
April 1999
Revised December 2005
LM7805 • LM7806 • LM7808 • LM7809 •
LM7810 • LM7812 • LM7815 • LM7818 • LM7824 •
LM7805A • LM7806A • LM7808A •LM7809A •
LM7810A • LM7812A • LM7815A • LM7818A • LM7824A
3-Terminal 1A Positive Voltage Regulator
General Description
The LM78XX series of three terminal positive regulators are
available in the TO-220 package and with several fixed output
voltages, making them useful in a wide range of applications.
Each type employs internal current limiting, thermal shut down
and safe operating area protection, making it essentially inde-
structible. If adequate heat sinking is provided, they can deliver
over 1A output current. Although designed primarily as fixed
voltage regulators, these devices can be used with external
components to obtain adjustable voltages and currents.
Features
O
Output Current up to 1A
O
Output Voltages of 5, 6, 8, 9, 12, 15, 18, 24
O
Thermal Overload Protection
O
Short Circuit Protection
O
Output Transistor Safe Operating Area Protection
Ordering Code:
Product Number
LM7805CT
LM7806CT
LM7808CT
LM7809CT
LM7810CT
LM7812CT
LM7815CT
LM7818CT
LM7824CT
LM7805ACT
LM7806ACT
LM7808ACT
LM7809ACT
LM7810ACT
LM7812ACT
LM7815ACT
LM7818ACT
LM7824ACT
TO-220
Output Voltage Tolerance
Package
Operating Temperature
r
4%
40
q
C -
125
q
C
r
2%
0
q
C -
125
q
C
© 2005 Fairchild Semiconductor Corporation
DS400018
www.fairchildsemi.com
LM7805 • LM7806 • LM7808 • LM7809 • LM7810 • LM7812 • LM7815 • LM7818 • LM7824 • LM7805A • LM7806A • LM7808A
•LM7809A • LM7810A • LM7812A • LM7815A • LM7818A • LM7824A
Internal Block Diagram
www.fairchildsemi.com
2
LM7805 • LM7806 • LM7808 • LM7809 • LM7810 • LM7812 • LM7815 • LM7818 • LM7824 • LM7805A • LM7806A • LM7808A
•LM7809A • LM7810A • LM7812A • LM7815A • LM7818A • LM7824A
Absolute Maximum Ratings
(Note 1)
Parameter
Input Voltage (for V
O
= 5V to 18V)
(for V
O
= 24V)
Thermal Resistance Junction-Cases (TO-220)
Thermal Resistance Junction-Air (TO-220)
Operating Temperature Range
LM78xx
LM78xxA
Storage Temperature Range
T
STG
Symbol
V
I
V
I
R
T
JC
R
T
JA
T
OPR
Value
35
40
5
65
0
a
125
Unit
V
V
q
C/W
q
C/W
q
C
q
C
q
C
q
C
40
a
125
0
a
125
65
a
150
Note 1:
Absolute maximum ratings are those values beyond which damage to the device may occur. The datasheet specifications should be met, without exception, to ensure
that the system design is reliable over its power supply, temperature, and output/input loading variables. Fairchild does not recommend operation outside datasheet specifica-
tions.
Electrical Characteristics (LM7805)
Parameter
Output Voltage
Symbol
V
O
T
J
=
25
q
C
(Refer to the test circuits.
40
q
C
T
J
125
q
C, I
O
= 500mA, V
I
= 10V, C
I
= 0.1
P
F, unless otherwise specified)
Conditions
Min
4.8
4.75
–
–
–
–
–
–
–
–
–
62.0
–
–
–
–
Typ
5.0
5.0
4.0
1.6
9.0
4.0
5.0
0.03
0.3
Max
5.2
V
5.25
100
mV
50.0
100
mV
50.0
8.0
0.5
mA
1.3
–
–
–
–
–
–
–
mV/
q
C
mA
Unit
5mA
d
I
O
d
1A, P
O
d
15W, V
I
= 7V to 20V
Line Regulation
(Note 2)
Load Regulation
Regload
T
J
=
25
q
C
Regline
T
J
=
25
q
C
V
O
= 7V to 25V
V
I
= 8V to 12V
I
O
= 5mA to 1.5mA
I
O
= 250mA to 750mA
Quiescent Current
Quiescent Current Change
I
Q
T
J
=
25
q
C
I
O
= 5mA to 1A
V
I
= 7V to 25V
Output Voltage Drift (Note 3)
Output Noise Voltage
Ripple Rejection (Note 3)
Dropout Voltage
Output Resistance (Note 3)
Short Circuit Current
Peak Current (Note 3)
'
I
Q
'
V
O
/
'
T
V
N
RR
V
DROP
rO
I
SC
I
PK
I
O
= 5mA
f = 10Hz to 100KHz, T
A
=
25
q
C
f = 120Hz, V
O
= 8V to 18V
I
O
= 1A, T
J
=
25
q
C
f = 1KHz
V
I
= 35V, T
A
=
25
q
C
T
J
=
25
q
C
0.8
42.0
73.0
2.0
15.0
230
2.2
P
V/V
O
dB
V
m
:
mA
A
Note 2:
Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account separately. Pulse testing with
low duty is used.
Note 3:
These parameters, although guaranteed, are not 100% tested in production.
3
www.fairchildsemi.com
LM7805 • LM7806 • LM7808 • LM7809 • LM7810 • LM7812 • LM7815 • LM7818 • LM7824 • LM7805A • LM7806A • LM7808A
•LM7809A • LM7810A • LM7812A • LM7815A • LM7818A • LM7824A
Electrical Characteristics (LM7806)
Parameter
Output Voltage
Symbol
V
O
T
J
=
25
q
C
(Refer to the test circuits.
40
q
C
T
J
125
q
C, I
O
= 500mA, V
I
= 11V, C
I
= 0.33
P
F, C
O
= 0.1
P
F, unless otherwise specified)
Conditions
Min
5.75
5.7
–
–
–
–
–
–
–
–
–
62.0
–
–
–
–
Typ
6.0
6.0
5.0
1.5
9.0
3.0
5.0
–
–
Max
6.25
V
6.3
120
mV
60.0
120
mV
60.0
8.0
0.5
mA
1.3
–
–
–
–
–
–
–
mV/
q
C
mA
Unit
5mA
d
I
O
d
1A, P
O
d
15W, V
I
= 8.0V to 21V
Line Regulation
(Note 4)
Load Regulation
(Note 4)
Quiescent Current
Quiescent Current Change
I
Q
T
J
=
25
q
C
I
O
= 5mA to 1A
V
I
= 8V to 25V
Output Voltage Drift (Note 5)
Output Noise Voltage
Ripple Rejection (Note 5)
Dropout Voltage
Output Resistance (Note 5)
Short Circuit Current
Peak Current (Note 5)
Regload
T
J
=
25
q
C
Regline
T
J
=
25
q
C
V
I
= 8V to 25V
V
I
= 9V to 13V
I
O
= 5mA to 1.5mA
I
O
= 250mA to 750mA
'
I
Q
'
V
O
/
'
T
V
N
RR
V
DROP
rO
I
SC
I
PK
I
O
= 5mA
f = 10Hz to 100KHz, T
A
=
25
q
C
f = 120Hz, V
O
= 8V to 18V
I
O
= 1A, T
J
=
25
q
C
f = 1KHz
V
I
= 35V, T
A
=
25
q
C
T
J
=
25
q
C
0.8
45.0
73.0
2.0
19.0
250
2.2
P
V/V
O
dB
V
m
:
mA
A
Note 4:
Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account separately. Pulse testing with
low duty is used.
Note 5:
These parameters, although guaranteed, are not 100% tested in production.
Electrical Characteristics (LM7808)
Parameter
Output Voltage
Symbol
V
O
T
J
=
25
q
C
(Refer to the test circuits.
40
q
C
T
J
125
q
C, I
O
= 500mA, V
I
= 14V, C
I
= 0.33
P
F, C
O
= 0.1
P
F, unless otherwise specified)
Conditions
Min
7.7
7.6
–
–
–
–
–
–
–
–
–
56.0
–
–
–
–
Typ
8.0
8.0
5.0
2.0
10.0
5.0
5.0
0.05
0.5
Max
8.3
V
8.4
160
mV
80.0
160
mV
80.0
8.0
0.5
mA
1.0
–
–
–
–
–
–
–
mV/
q
C
mA
Unit
5mA
d
I
O
d
1A, P
O
d
15W, V
I
= 10.5V to 23V
Line Regulation
(Note 6)
Load Regulation
(Note 6)
Quiescent Current
Quiescent Current Change
I
Q
T
J
=
25
q
C
I
O
= 5mA to 1A
V
I
= 10.5V to 25V
Output Voltage Drift (Note 7)
Output Noise Voltage
Ripple Rejection (Note 7)
Dropout Voltage
Output Resistance (Note 7)
Short Circuit Current
Peak Current (Note 7)
Regload
T
J
=
25
q
C
Regline
T
J
=
25
q
C
V
I
= 10.5V to 25V
V
I
= 11.5V to 17V
I
O
= 5mA to 1.5mA
I
O
= 250mA to 750mA
'
I
Q
'
V
O
/
'
T
V
N
RR
V
DROP
rO
I
SC
I
PK
I
O
= 5mA
f = 10Hz to 100KHz, T
A
=
25
q
C
f = 120Hz, V
O
= 11.5V to 21.5V
I
O
= 1A, T
J
=
25
q
C
f = 1KHz
V
I
= 35V, T
A
=
25
q
C
T
J
=
25
q
C
0.8
52.0
73.0
2.0
17.0
230
2.2
P
V/V
O
dB
V
m
:
mA
A
Note 6:
Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account separately. Pulse testing with
low duty is used.
Note 7:
These parameters, although guaranteed, are not 100% tested in production.
www.fairchildsemi.com
4
LM7805 • LM7806 • LM7808 • LM7809 • LM7810 • LM7812 • LM7815 • LM7818 • LM7824 • LM7805A • LM7806A • LM7808A
•LM7809A • LM7810A • LM7812A • LM7815A • LM7818A • LM7824A
Electrical Characteristics (LM7809)
Parameter
Output Voltage
Symbol
V
O
T
J
=
25
q
C
(Refer to the test circuits.
40
q
C
T
J
125
q
C, I
O
= 500mA, V
I
= 15V, C
I
= 0.33
P
F, C
O
= 0.1
P
F, unless otherwise specified)
Conditions
Min
8.65
8.6
–
–
–
–
–
–
–
–
–
56.0
–
–
–
–
Typ
9.0
9.0
6.0
2.0
12.0
4.0
5.0
–
–
Max
9.35
V
9.4
180
mV
90.0
180
mV
90.0
8.0
0.5
mA
1.3
–
–
–
–
–
–
–
mV/
q
C
mA
Unit
5mA
d
I
O
d
1A, P
O
d
15W, V
I
= 11.5V to 24V
Line Regulation
(Note 8)
Load Regulation
(Note 8)
Quiescent Current
Quiescent Current Change
I
Q
T
J
=
25
q
C
I
O
= 5mA to 1A
V
I
= 11.5V to 26V
Output Voltage Drift (Note 9)
Output Noise Voltage
Ripple Rejection (Note 9)
Dropout Voltage
Output Resistance (Note 9)
Short Circuit Current
Peak Current (Note 9)
Regload
T
J
=
25
q
C
Regline
T
J
=
25
q
C
V
I
= 11.5V to 25V
V
I
= 12V to 17V
I
O
= 5mA to 1.5mA
I
O
= 250mA to 750mA
'
I
Q
'
V
O
/
'
T
V
N
RR
V
DROP
rO
I
SC
I
PK
I
O
= 5mA
f = 10Hz to 100KHz, T
A
=
25
q
C
f = 120Hz, V
O
= 13V to 23V
I
O
= 1A, T
J
=
25
q
C
f = 1KHz
V
I
= 35V, T
A
=
25
q
C
T
J
=
25
q
C
1.0
58.0
71.0
2.0
17.0
250
2.2
P
V/V
O
dB
V
m
:
mA
A
Note 8:
Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account separately. Pulse testing with
low duty is used.
Note 9:
These parameters, although guaranteed, are not 100% tested in production.
Electrical Characteristics (LM7810)
Parameter
Output Voltage
Symbol
V
O
T
J
=
25
q
C
(Refer to the test circuits.
40
q
C
T
J
125
q
C, I
O
= 500mA, V
I
= 16V, C
I
= 0.33
P
F, C
O
= 0.1
P
F, unless otherwise specified)
Conditions
Min
9.6
9.5
–
–
–
–
–
–
–
–
–
56.0
–
–
–
–
Typ
10.0
10.0
10.0
3.0
12.0
4.0
5.1
–
–
Max
10.4
V
10.5
200
mV
100
200
mV
400
8.0
0.5
mA
1.0
–
–
–
–
–
–
–
mV/
q
C
mA
Unit
5mA
d
I
O
d
1A, P
O
d
15W, V
I
= 12.5V to 25V
Line Regulation
(Note 10)
Load Regulation
(Note 10)
Quiescent Current
Quiescent Current Change
I
Q
T
J
=
25
q
C
I
O
= 5mA to 1A
V
I
= 12.5V to 29V
Output Voltage Drift (Note 11)
Output Noise Voltage
Ripple Rejection (Note 11)
Dropout Voltage
Output Resistance (Note 11)
Short Circuit Current
Peak Current (Note 11)
Regload
T
J
=
25
q
C
Regline
T
J
=
25
q
C
V
I
= 12.5V to 25V
V
I
= 13V to 25V
I
O
= 5mA to 1.5mA
I
O
= 250mA to 750mA
'
I
Q
'
V
O
/
'
T
V
N
RR
V
DROP
rO
I
SC
I
PK
I
O
= 5mA
f = 10Hz to 100KHz, T
A
=
25
q
C
f = 120Hz, V
O
= 13V to 23V
I
O
= 1A, T
J
=
25
q
C
f = 1KHz
V
I
= 35V, T
A
=
25
q
C
T
J
=
25
q
C
1.0
58.0
71.0
2.0
17.0
250
2.2
P
V/V
O
dB
V
m
:
mA
A
Note 10:
Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account separately. Pulse testing with
low duty is used.
Note 11:
These parameters, although guaranteed, are not 100% tested in production.
5
www.fairchildsemi.com
京公网安备 11010802033920号
EEWORLD
