1A Positive
Voltage Regulator
LM78xx
1A Positive Voltage Regulator
General Description
•
The TCI LM78xx family is monolithic fixed voltage regulator
integrated circuit. They are suitable for applications that
required supply current up to 1A.
•
The LM78M is available in D-PACK (TO-252) and TO-220 packages.
.
D-PACK
(TO-252)
TO-220
Features
•
Output Current up to 1A
•
Fixed output voltage of 5V, 6V, 8V, 9V,
10V, 12V,15V, 18V and 24V available
•
•
•
•
Thermal overload shutdown protection
Short circuit current limiting
Output transistor SOA protection
RoHS Compliance
Applications
•
•
•
•
High Efficiency Linear Regulator
Post Regulation for Switching Supply
Microprocessor Power Supply
Mother Board
Ordering Information
TAITRON COMPONENTS INCORPORATED
www.taitroncomponents.com
Tel:
Fax:
(800)-TAITRON (800)-824-8766
(800)-TAITFAX (800)-824-8329
(661)-257-6060
(661)-257-6415
Rev. A/DX 2007-06-04
Page 1 of 12
1A Positive Voltage Regulator
LM78xx
Pin Configuration
Outline: D
D-PACK
(TO-252)
Outline: T
TO-220
Block Diagram
Rev. A/DX 2007-06-04
www.taitroncomponents.com
Page 2 of 12
1A Positive Voltage Regulator
LM78xx
Absolute Maximum Ratings
Symbol
V
IN
I
OUT
P
D
T
J
T
OPR
T
STG
Description
V
OUT
=3.3~18V
V
OUT
=20~24V
Output Current
D-PACK (TO-252)
Power Dissipation
TO-220
Junction Temperature
Operating Temperature Range
Storage Temperature Range
Input Voltage
Ratings
35
40
1
Internally Limited
150
-20 ~ 150
-55 ~ 150
Unit
V
A
mW
°C
°C
Note:
1. Absolute maximum ratings are stress ratings only and functional device operation is not implied.
The device could be damaged beyond Absolute maximum ratings.
2. The maximum steady state usable output current are dependent on input voltage, heat sinking,
lead length of the package and copper pattern of PCB. The data are showed as electrical
characteristics table represents pulse test conditions with junction temperatures specified at
the initiation of test.
Electrical Characteristics
(T
J
=25° C, P
D
≦15W,
unless otherwise specified)
For LM7805 (V
IN
=10V, I
OUT
=0.5A, C1=0.33µF, C
O
=0.1µF)
Symbol
V
OUT
∆V
OUT
∆V
OUT
I
Q
∆I
Q
eN
∆V
O
/∆
T
RR
I
PEAK
I
SC
V
D
Description
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of
V
OUT
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
LM7805
Min.
Typ.
Max.
Unit
V
V
mV
mV
mV
mV
mA
mA
mA
µV
mV/℃
dB
A
mA
V
Test Conditions
I
OUT
=5mA-1.0A
7.5V≤V
IN
≤20V,
I
OUT
=5mA-1.0A
I
OUT
=5mA-1.0A
I
OUT
=0.25A-0.75A
7V≤V
IN
≤25V
7.5V≤V
IN
≤20V,
I
OUT
=1.0A
I
OUT
≦1.0A
7.5V≤V
IN
≤20V
I
OUT
=5mA-1.0A
10Hz≤f≤100KHz
I
OUT
=5mA
8V≤V
IN
≤18V,
f=120Hz
-
V
IN
=35V
-
Rev. A/DX 2007-06-04
4.80
4.75
-
-
-
-
-
-
-
-
-
62
-
-
-
5.0
-
-
-
-
-
-
-
-
40
-0.6
80
1.8
250
2.0
5.20
5.25
50
25
50
50
8.0
1.0
0.5
-
-
-
-
-
-
www.taitroncomponents.com
Page 3 of 12
1A Positive Voltage Regulator
LM78xx
For LM7806 (V
IN
=11V, I
OUT
=0.5A, C1=0.33µF, C
O
=0.1µF)
LM7806
Symbol
Description
Min.
Typ.
Max.
Unit
V
V
mV
mV
mV
mV
mA
mA
mA
µV
mV/℃
dB
A
mA
V
Test Conditions
I
OUT
=5mA-1.0A
8.5V≤V
IN
≤21V,
I
OUT
=5mA-1.0A
I
OUT
=5mA-1.0A
I
OUT
=0.25A-0.75A
8V≤V
IN
≤25V
8.5V≤V
IN
≤21V,
I
OUT
=1.0A
I
OUT
≦1.0A
8.5V≤V
IN
≤21V
I
OUT
=5mA-1.0A
10Hz≤f≤100KHz
I
OUT
=5mA
9V≤V
IN
≤19V,
f=120Hz
-
V
IN
=35V
-
V
OUT
∆V
OUT
∆V
OUT
I
Q
∆I
Q
eN
∆V
O
/∆
T
RR
I
PEAK
I
SC
V
D
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of
V
OUT
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
5.76
5.70
-
-
-
-
-
-
-
-
-
59
-
-
-
6.0
-
-
-
-
-
-
-
-
45
-0.7
75
1.8
250
2.0
6.24
6.30
60
30
60
60
8.0
1.0
0.5
-
-
-
-
-
-
For LM7808 (V
IN
=14V, I
OUT
=0.5A, C1=0.33µF, C
O
=0.1µF)
Symbol
V
OUT
∆V
OUT
∆V
OUT
I
Q
∆I
Q
eN
∆V
O
/∆
T
RR
I
PEAK
I
SC
V
D
Description
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of
V
OUT
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
LM7808
Min.
Typ.
Max.
Unit
V
V
mV
mV
mV
mV
mA
mA
mA
µV
mV/℃
dB
A
mA
V
Test Conditions
I
OUT
=5mA-1.0A
10.5V≤V
IN
≤23V,
I
OUT
=5mA-1.0A
I
OUT
=5mA-1.0A
I
OUT
=0.25A-0.75A
10.5V≤V
IN
≤25V
10.5V≤V
IN
≤23V,
I
OUT
=1.0A
I
OUT
≦1.0A
10.5V≤V
IN
≤23V
I
OUT
=5mA-1.0A
10Hz≤f≤100KHz
I
OUT
=5mA
11.5V≤V
IN
≤21.5V,
f=120Hz
-
V
IN
=35V
-
Rev. A/DX 2007-06-04
7.68
7.60
-
-
-
-
-
-
-
-
-
56
-
-
-
8.0
-
-
-
-
-
-
-
-
58
-0.9
72
1.8
250
2.0
8.32
8.40
80
40
80
80
8.0
1.0
0.5
-
-
-
-
-
-
www.taitroncomponents.com
Page 4 of 12
1A Positive Voltage Regulator
LM78xx
For LM7809 (V
IN
=15V, I
OUT
=0.5A, C1=0.33µF, C
O
=0.1µF)
LM7809
Symbol
Description
Min.
Typ.
Max.
Unit
V
V
mV
mV
mV
mV
mA
mA
mA
µV
mV/℃
dB
A
mA
V
Test Conditions
I
OUT
=5mA-1.0A
11.5V≤V
IN
≤24V,
I
OUT
=5mA-1.0A
I
OUT
=5mA-1.0A
I
OUT
=0.25A-0.75A
11.5V≤V
IN
≤25V
11.5V≤V
IN
≤24V,
I
OUT
=1.0A
I
OUT
≦1.0A
11.5V≤V
IN
≤24V
I
OUT
=5mA-1.0A
10Hz≤f≤100KHz
I
OUT
=5mA
12.5V≤V
IN
≤22.5V,
f=120Hz
-
V
IN
=35V
-
V
OUT
∆V
OUT
∆V
OUT
I
Q
∆I
Q
eN
∆V
O
/∆
T
RR
I
PEAK
I
SC
V
D
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of
V
OUT
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
8.64
8.55
-
-
-
-
-
-
-
-
-
56
-
-
-
9.0
-
-
-
-
-
-
-
-
58
-1.1
72
1.8
250
2.0
9.36
9.45
90
45
90
90
8.0
1.0
0.5
-
-
-
-
-
-
For LM7810 (V
IN
=16V, I
OUT
=0.5A, C1=0.33µF, C
O
=0.1µF)
Symbol
V
OUT
∆V
OUT
∆V
OUT
I
Q
∆I
Q
eN
∆V
O
/∆
T
RR
I
PEAK
I
SC
V
D
Description
Output Voltage
Load Regulation
Line Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of
V
OUT
Ripple Rejection
Peak Output Current
Short-Circuit Current
Dropout Voltage
LM7810
Min.
Typ.
Max.
Unit
V
V
mV
mV
mV
mV
mA
mA
mA
µV
mV/℃
dB
A
mA
V
Test Conditions
I
OUT
=5mA-1.0A
12.5V≤V
IN
≤25V,
I
OUT
=5mA-1.0A
I
OUT
=5mA-1.0A
I
OUT
=0.25A-0.75A
13V≤V
IN
≤25V
13V≤V
IN
≤25V,
I
OUT
=1.0A
I
OUT
≦1.0A
12.6V≤V
IN
≤25V
I
OUT
=5mA-1.0A
10Hz≤f≤100KHz
I
OUT
=5mA
13V≤V
IN
≤23V,
f=120Hz
-
V
IN
=35V
-
Rev. A/DX 2007-06-04
9.60
9.50
-
-
-
-
-
-
-
-
-
56
-
-
-
10.0
-
-
-
-
-
-
-
-
58
-1.1
72
1.8
250
2.0
10.40
10.50
100
50
100
100
8.0
1.0
0.5
-
-
-
-
-
-
www.taitroncomponents.com
Page 5 of 12
京公网安备 11010802033920号
EEWORLD
