Datasheet

UNISONIC TECHNOLOGIES CO., LTD
LM78XXA
LINEAR INTEGRATED CIRCUIT
3-TERMINAL 1.5A POSITIVE
VOLTAGE REGULATOR

DESCRIPTION
The UTC LM78XXA family is monolithic fixed voltage regulator
integrated circuit. They are suitable for applications requiring supply
current up to 1.5 A.

FEATURES
* Output current up to 1.5A
* Fixed output voltage of 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V
and 24V available
* Thermal overload shutdown protection
* Output transistor SOA protection

ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
LM78XXAL-TA3-T
LM78XXAG-TA3-T
LM78XXAL-TF3-T
LM78XXAG-TF3-T
LM78XXAL-TF2-T
LM78XXAG-TF2-T
Note: Pin Assignment: O: Output
G: GND
I: Input

Package
TO-220
TO-220F
TO-220F2
Pin Assignment
1
2
3
I
G
O
I
G
O
I
G
O
Packing
Tube
Tube
Tube
MARKING INFORMATION
PACKAGE
TO-220
TO-220F
TO-220F2
VOLTAGE CODE
05:
06:
07:
08:
09:
10:
12:
15:
18:
24:
MARKING
5.0 V
6.0 V
7.0 V
8.0 V
9.0 V
1.0 V
1.2 V
1.5 V
1.8 V
2.4 V
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Copyright © 2014 Unisonic Technologies Co., Ltd
1 of 9
QW-R101-034.E
LM78XXA

TEST CIRCUIT

APPLICATION CIRCUIT
LINEAR INTEGRATED CIRCUIT
Note 1: To specify an output voltage, substitute voltage value for "XX".
2: Bypass capacitors are recommended for optimum stability and transient response and should be located as
close as possible to the regulators.
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2 of 9
QW-R101-034.E
LM78XXA

LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)
PARAMETER
VOUT=5~18V
VOUT=24V
RATING
UNIT
35
V
Input voltage
VIN
40
V
Output Current
IOUT
1.5
A
Power Dissipation
PD
Internally Limited
W
Operating Junction Temperature
TOPR
-20 ~ +125
°C
Storage Temperature
TSTG
-55 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.

THERMAL DATA
PARAMETER
Junction to Ambient
TO-220
Junction to Case
TO-220F/TO-220F2

SYMBOL
SYMBOL
θJA
θJC
RATING
65
5
8
UNIT
°C/W
°C/W
ELECTRICAL CHARACTERISTICS
(IOUT=0.5A, TJ= 0°C~125°C, CI =0.33μF, CO=0.1μF, unless otherwise specified)(Note 1)
For UTC LM7805A (VIN =10V)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
4.80
TJ =25°C, IOUT=5mA ~ 1.0A
Output Voltage
VOUT
VIN =7.5V ~ 20V,
4.75
IOUT=5mA ~ 1.0A,PD≤15W
Dropout Voltage
VD
TJ =25°C
TJ =25°C,IOUT=5mA ~ 1.5A
Load Regulation
VOUT
TJ =25°C,IOUT=0.25A ~ 0.75A
VIN =7V ~ 25V, TJ =25°C
Line regulation
VOUT
VIN =7.5V ~ 20V, TJ =25°C, IOUT=1.0A
Quiescent Current
IQ
TJ =25°C, IOUT≤1.0A
VIN =7.5V ~ 20V
Quiescent Current Change
IQ
IOUT=5mA ~ 1.0A
Output Noise Voltage
eN
10Hz≤f≤100kHz
Temperature Coefficient of Vo
Vo/T IOUT=5mA
Ripple Rejection
RR
VIN =8V ~ 18V,f=120Hz, TJ =25°C
62
Peak Output Current
IPEAK
TJ =25°C
For UTC LM7806A (VIN =11V)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
5.76
TJ =25°C, IOUT=5mA ~ 1.0A
Output Voltage
VOUT
VIN =8.5V ~ 21V,
5.70
IOUT=5mA ~ 1.0A, PD≤15W
Dropout Voltage
VD
TJ =25°C
TJ =25°C,IOUT=5mA ~ 1.5A
Load Regulation
VOUT
TJ =25°C,IOUT=0.25A~ 0.75A
VIN =8V ~ 25V, TJ =25°C
Line regulation
VOUT
VIN =8.5V ~ 21V, TJ =25°C,IOUT=1.0A
Quiescent Current
IQ
TJ =25°C, IOUT≤1.0A
VIN =8.5V ~ 21V
Quiescent Current Change
IQ
IOUT=5mA ~ 1.0A
Output Noise Voltage
eN
10Hz≤f≤100kHz
Temperature Coefficient of Vo
Vo/T IOUT=5mA
Ripple Rejection
RR
VIN =9V ~ 19V,f=120Hz, TJ =25°C
59
Peak Output Current
IPEAK
TJ =25°C
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TYP
5.0
MAX
5.20
UNIT
V
5.25
V
2.0
100
50
50
50
8.0
1.0
0.5
40
-0.6
80
1.8
TYP
6.0
MAX
6.24
UNIT
V
6.30
V
2.0
100
50
60
60
8.0
1.0
0.5
45
-0.7
75
1.8
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/°C
dB
A
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/°C
dB
A
3 of 9
QW-R101-034.E
LM78XXA

LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
For UTC LM7807A (VIN =13V)
PARAMETER
SYMBOL
Output Voltage
VOUT
Dropout Voltage
VD
Load Regulation
VOUT
Line regulation
VOUT
Quiescent Current
IQ
IQ
Quiescent Current Change
Output Noise Voltage
Temperature Coefficient of Vo
Ripple Rejection
Peak Output Current
eN
Vo/T
RR
IPEAK
For UTC LM7808A (VIN =14V)
PARAMETER
SYMBOL
Output Voltage
VOUT
Dropout Voltage
VD
Load Regulation
VOUT
Line regulation
VOUT
Quiescent Current
IQ
IQ
Quiescent Current Change
Output Noise Voltage
Temperature Coefficient of Vo
eN
Vo/T
Ripple Rejection
RR
Peak Output Current
IPEAK
TEST CONDITIONS
TJ =25°C, IOUT=5mA - 1.0A
VIN =9.5V ~ 22V,
IOUT=5mA ~ 1.0A, PD≤15W
TJ =25°C
TJ =25°C,IOUT=5mA ~ 1.5A
TJ =25°C,IOUT=0.25A ~ 0.75A
VIN =9V ~ 25V, TJ =25°C
VIN =9.5V ~ 22V, TJ =25°C,IOUT=1.0A
TJ =25°C, IOUT≤1.0A
VIN =9.5V ~ 22V
IOUT=5mA ~ 1.0A
10Hz≤f≤100kHz
IOUT=5mA
VIN =10V ~ 20V,f=120Hz, TJ =25°C
TJ =25°C
MIN
6.72
TEST CONDITIONS
TJ =25°C, IOUT=5mA~ 1.0A
VIN =10.5V ~ 23V,
IOUT=5mA ~ 1.0A, PD≤15W
TJ =25°C
TJ =25°C,IOUT=5mA ~ 1.5A
TJ =25°C,IOUT=0.25A ~ 0.75A
VIN =10.5V ~ 25V, TJ =25°C
VIN =10.5V ~ 23V, TJ =25°C,IOUT=1.0A
TJ =25°C, IOUT≤1.0A
VIN =10.5V ~ 23V
IOUT=5mA ~ 1.0A
10Hz≤f≤100kHz
IOUT=5mA
VIN =11.5V ~ 21.5V,
f=120Hz, TJ =25°C
TJ =25°C
MIN
7.68
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TYP
7.0
6.65
MAX
7.28
UNIT
V
7.35
V
2.0
100
50
70
70
8.0
1.0
0.5
59
50
-0.8
75
1.7
TYP
8.0
7.60
MAX
8.32
UNIT
V
8.40
V
2.0
58
-0.9
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/°C
72
dB
1.8
A
100
50
80
80
8.0
1.0
0.5
56
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/°C
dB
A
4 of 9
QW-R101-034.E
LM78XXA

LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
For UTC LM7809A (VIN =15V)
PARAMETER
SYMBOL
Output Voltage
VOUT
Dropout Voltage
VD
Load Regulation
VOUT
Line regulation
VOUT
Quiescent Current
IQ
IQ
Quiescent Current Change
Output Noise Voltage
Temperature Coefficient of Vo
Ripple Rejection
Peak Output Current
eN
Vo/T
RR
IPEAK
For UTC LM7810A (VIN =16V)
PARAMETER
SYMBOL
Output Voltage
VOUT
Dropout Voltage
VD
Load Regulation
VOUT
Line regulation
VOUT
Quiescent Current
IQ
IQ
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of Vo
Ripple Rejection
Peak Output Current
eN
Vo/T
RR
IPEAK
TEST CONDITIONS
TJ =25°C, IOUT=5mA ~ 1.0A
VIN =11.5V ~ 24V,
IOUT=5mA ~ 1.0A,PD≤15W
TJ =25°C
TJ =25°C,IOUT=5mA ~ 1.5A
TJ =25°C,IOUT=0.25A ~ 0.75A
VIN =11.5V ~ 25 V, TJ =25°C
VIN =11.5V ~ 24V, TJ =25°C, IOUT=1.0A
TJ =25°C, IOUT≤1.0A
VIN =11.5V ~ 24V
IOUT=5mA ~ 1.0A
10Hz≤f≤100kHz
IOUT=5mA
VIN =12.5V ~ 22.5V,f=120Hz, TJ =25°C
TJ =25°C
TEST CONDITIONS
TJ =25°C, IOUT=5mA ~ 1.0A
VIN =12.5V ~ 25V,
IOUT=5mA ~ 1.0A,PD≤15W
TJ =25°C
TJ =25°C,IOUT=5mA - 1.5A
TJ =25°C,IOUT=0.25A - 0.75A
VIN =13V ~ 25V, TJ =25°C
VIN =13V ~ 25V, TJ =25°C,IOUT=1.0A
TJ =25°C, IOUT≤1.0A
VIN =12.6V ~ 25V
IOUT=5mA - 1.0A
10Hz≤f≤100kHz
IOUT=5mA
VIN =13V - 23V,f=120Hz, TJ =25°C
TJ =25°C
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MIN
8.64
TYP
9.0
8.55
MAX
9.36
UNIT
V
9.45
V
2.0
100
50
90
90
8.0
1.0
0.5
56
MIN
9.60
58
-1.1
72
1.8
TYP
10.0
9.50
MAX
10.40
UNIT
V
10.50
V
2.0
100
50
100
100
8.0
1.0
0.5
56
58
-1.1
72
1.8
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/°C
dB
A
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/°C
dB
A
5 of 9
QW-R101-034.E
LM78XXA

LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
For UTC LM7812A (VIN =19V)
PARAMETER
SYMBOL
Output Voltage
VOUT
Dropout Voltage
VD
Load Regulation
VOUT
Line regulation
VOUT
Quiescent Current
IQ
IQ
Quiescent Current Change
Output Noise Voltage
Temperature Coefficient of Vo
Ripple Rejection
Peak Output Current
eN
Vo/T
RR
IPEAK
For UTC LM7815A (VIN =23V)
PARAMETER
SYMBOL
Output Voltage
VOUT
Dropout Voltage
VD
Load Regulation
VOUT
Line regulation
VOUT
Quiescent Current
IQ
IQ
Quiescent Current Change
Output Noise Voltage
Temperature Coefficient of Vo
Ripple Rejection
Peak Output Current
eN
Vo/T
RR
IPEAK
TEST CONDITIONS
TJ =25°C, IOUT=5mA ~ 1.0A
VIN =14.5V ~ 27V,
IOUT=5mA ~ 1.0A,PD≤15W
TJ =25°C
TJ =25°C,IOUT=5mA ~ 1.5A
TJ =25°C,IOUT=0.25A ~ 0.75A
VIN =14.5V ~ 30V, TJ =25°C
VIN =14.6V ~ 27V, TJ =25°C, IOUT=1.0A
TJ =25°C, IOUT≤1.0A
VIN =14.5V ~ 30V
IOUT=5mA ~ 1.0A
10Hz≤f≤100kHz
IOUT=5mA
VIN =15V - 25V,f=120Hz, TJ =25°C
TJ =25°C
TYP
12.0
11.40
MAX
12.48
UNIT
V
12.60
V
2.0
100
50
120
120
8.0
1.0
0.5
55
TEST CONDITIONS
MIN
14.40
TJ =25°C, IOUT=5mA ~ 1.0A
VIN =17.5V ~ 30V,
14.25
IOUT=5mA ~ 1.0A,PD≤15W
TJ =25°C
TJ =25°C,IOUT=5mA ~ 1.5A
TJ =25°C,IOUT=0.25A ~ 0.75A
VIN =18.5V ~ 30V, TJ =25°C
VIN =17.7V ~ 30V, TJ =25°C, IOUT =1.0A
TJ =25°C, IOUT≤1.0A
VIN =17.5V ~ 30V
IOUT=5mA ~ 1.0A
10Hz≤f≤100kHz
IOUT=5mA
VIN =18.5V ~ 28.5V,f=120Hz, TJ =25°C
54
TJ =25°C
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MIN
11.52
75
-1.5
72
1.8
TYP
15.0
MAX
15.60
UNIT
V
15.75
V
2.0
100
50
150
150
8.0
1.0
0.5
90
-1.8
70
1.8
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/°C
dB
A
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/C
dB
A
6 of 9
QW-R101-034.E
LM78XXA

LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
For UTC LM7818A (VIN =27V)
PARAMETER
SYMBOL
Output Voltage
VOUT
Dropout Voltage
VD
Load Regulation
VOUT
Line regulation
VOUT
Quiescent Current
IQ
IQ
Quiescent Current Change
Output Noise Voltage
Temperature Coefficient of Vo
Ripple Rejection
Peak Output Current
eN
Vo/T
RR
IPEAK
For UTC LM7824A (VIN =33V)
PARAMETER
SYMBOL
TEST CONDITIONS
TJ =25°C, IOUT=5mA ~ 1.0A
VIN =21V ~ 33V,
IOUT=5mA ~ 1.0A, PD≤15W
TJ =25°C
TJ =25°C,IOUT=5mA ~ 1.5A
TJ =25°C,IOUT=0.25A ~ 0.75A
VIN =21V ~ 33V, TJ =25°C
VIN =21V ~ 33V,
TJ =25°C, IOUT =1.0A
TJ =25°C, IOUT≤1.0A
VIN =21.5V ~ 33V
IOUT=5mA ~ 1.0A
10Hz≤f≤100kHz
IOUT=5mA
VIN =22V ~ 32V,f=120Hz, TJ =25°C
TJ =25°C
MIN
17.28
TYP
18.0
17.10
MAX
18.72
UNIT
V
18.90
V
100
50
180
V
mV
mV
mV
180
mV
8.0
1.0
0.5
mA
mA
mA
μV
mV/°C
dB
A
2.0
53
110
-2.2
69
1.8
TEST CONDITIONS
MIN
TYP MAX UNIT
23.04 24.0 24.96
V
TJ =25°C, IOUT=5mA ~ 1.0A
Output Voltage
VOUT
VIN =27V ~ 38V,
22.80
25.20
V
IOUT=5mA ~ 1.0A, ,PD≤15W
Dropout Voltage
VD
TJ =25°C
2.0
V
TJ =25°C,IOUT=5mA ~ 1.5A
100
mV
Load Regulation
VOUT
TJ =25C,IOUT=0.25A ~ 0.75A
50
mV
VIN =27V ~ 38V, TJ =25°C
240
mV
Line regulation
VOUT
VIN =27V ~ 38V, TJ =25°C,I OUT=1.0A
240
mV
Quiescent Current
IQ
TJ =25°C, IOUT≤1.0A
8.0
mA
VIN =28V ~ 38V
1.0
mA
Quiescent Current Change
IQ
IOUT=5mA ~ 1.0A
0.5
mA
Output Noise Voltage
eN
10Hz≤f≤100kHz
170
μV
Temperature Coefficient of Vo
Vo/T IOUT=5mA
-2.8
mV/°C
Ripple Rejection
RR
VIN =28V ~ 38V, f=120Hz, TJ =25°C
50
66
dB
Peak Output Current
IPEAK
TJ =25°C
1.8
A
Note 1: 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 above represents pulse test conditions with junction
temperatures specified at the initiation of test.
2. Power dissipation<0.5W.
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7 of 9
QW-R101-034.E
LM78XXA
Output Voltage, VO (V)
Power Dissipation, PD (W)
TYPICAL CHARACTERISTICS
100
50
0
-50
-100
Output Voltage vs. Input Voltage
10
-150
5
IO=0A
4
IO=0.5A
3
2
IO=1A
0
2
4
8
10
6
Input Voltage, VIN (V)
12
Dropout Voltage vs. Juntion Temperature
TJ=25
Dropout Voltage, VD (V)
IO=1A
2.3
7
6
2.1
IO=0A
IO=0.5A
3
2
1
0
0
6
2.5
8
4
7
0
GND Current vs. Input Voltage
9
5
8
1
-200
-50 -25 0 25 50 75 100 125 150
Junction Temperature, TJ (℃)
10
TJ=25℃
9
Output Voltage, VO (mA)
Output Voltage Change, △VO (mV)
Output Voltage Change vs. Junction Temperature
200
IO=5mA
150
GND-Pin Current, IQ (mA)

LINEAR INTEGRATED CIRCUIT
IO=1A
1.9
1.7
1.5
2
4 6 8 10 12 14 16 18 20
Input Voltage, VIN (V)
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-40 -20 0 20 40 60 80 100120 140
Juntion Temperature, TJ (°С)
8 of 9
QW-R101-034.E
LM78XXA
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS(Cont.)
Ripple Rejection, RR (dB)
Output Peak Current, IO peak (A)

Dropout Voltage vs. Output Current
Output Voltage vs. Output Current
10
TJ=25°С
2
1.5
1
0.5
VIN=10V
9
Output Voltage, VD (V)
Dropout Voltage, VD (V)
2.5
8
7
6
5
4
3
2
1
0
0
0.25
0.5 0.75 1
1.25 1.5
Output Current, IO (A)
0
0
0.4
0.8 1.2 1.6
2
Output Current, IO (A)
2.4
UTC assumes no responsibility for equipm ent failures that result from using products at values that
exceed, even mom entarily, rated values (such as m aximum ratings, operating condition ranges, or
other param eters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or system s where
m alfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The inform ation
presented in this docum ent does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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9 of 9
QW-R101-034.E