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LM78XX LINEAR INTEGRATED CIRCUIT
3-TERMINAL 1A POSITIVE
VOLTAGE REGULATOR
DESCRIPTION
The Contek 78XX family is monolithic fixed voltage
regulator integrated circuit. They are suitable for
applications that required supply current up to 1 A.
FEATURES
*Output current up to 1.5 A
*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
TEST CIRCUIT
R13 R17 R9
T10
R14
R15
Z1
R16
T8 T9
T11
T4
T15
R1 R2
T1 T2
T5
T6
R4
1
TO-220
1:Input 2:GND 3:Output
INPUT
1
Z2
T12
T14
R19
R18
T13
R5
R6
T7
C1
T3
R11
R12
R10
R8
R7
OUTPUT
3
CONTEK
R3
Contek
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
GND
2
1
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LM78XX LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
( Operating temperature range applies unless otherwise specified )
PARAMETER SYMBOL RATING UNIT
Input voltage(for Vo=5~18V)
(for Vo=24V)
Output Current I o 1 A
Power Dissipation PD Internally Limited W
Operating Junction Temperature Range
Storage Temperature Range
I
V
OPR -20 +150 C
T
STG -55 +150 C
T
Contek LM7805 ELECTRICAL CHARACTERISTICS
( VI=10V, Io=0.5A, Tj= 0 C - 125 C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25 C, IO=5mA - 1.0A 4.8 5.0 5.2 V
Output Voltage Vo
Load Regulation DVo Tj=25 C,IO=5mA - 1.5A 50 mV
Tj=25 C,IO=0.25A - 0.75A 25 mV
Line regulation DVo VI =7V to 25V,Tj=25 C 50 mV
VI =7.5V to 20V,Tj=25 C,Io=1A 50 mV
Quiescent Current Iq Tj=25 C, IO=<1A 8.0 mA
Quiescent Current Change DIq VI =7.5V to 20V 1.0 mA
DIq IO=5mA - 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 40 mV
Temperature coefficient of Vo DVo/DT Io=5mA -0.6 mV/ C
Ripple Rejection RR VI =8V - 18V,f=120Hz,Tj=25 C 62 80 dB
Peak Output Current IPK Tj=25 C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25 C 250 mA
Dropout Voltage Vd Tj=25 C 2.0 V
I =7.5V to 20V,
V
O=5mA - 1.0A,PD<15W
I
35
40
4.75 5.25 V
V
V
Contek LM7806 ELECTRICAL CHARACTERISTICS
( VI=11V, Io=0.5A, Tj= 0 C - 125 C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25 C, IO=5mA - 1.0A 5.75 6.0 6.26.2 V
Output Voltage Vo
Load Regulation DVo Tj=25 C,IO=5mA - 1.5A 60 mV
Tj=25 C,IO=0.25A - 0.75A 30 mV
Line regulation DVo VI =8V to 25V,Tj=25 C 60 mV
VI =8.5V to 21V,Tj=25 C,Io=1A 60 mV
Quiescent Current Iq Tj=25 C, IO=<1A 8.0 mA
Quiescent Current Change DIq VI =8.5V to 21V 1.0 mA
DIq IO=5mA - 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 45 mV
Temperature coefficient of Vo DVo/ DT Io=5mA -0.7 mV/ C
Ripple Rejection RR VI =9V - 19V,f=120Hz,Tj=25 C 59 75 dB
Peak Output Current IPK Tj=25 C 1.8 A
I =8.5V to 21V,
V
O=5mA - 1.0A, PD<15W
I
5.7 6.3 V
Contek Microelectronics Co.,Ltd.
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2
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LM78XX LINEAR INTEGRATED CIRCUIT
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Short-Circuit Current ISC VI=35V, Tj=25 C 250 mA
Dropout Voltage Vd Tj=25 C 2.0 V
Contek LM7808 ELECTRICAL CHARACTERISTICS
( VI=14V, Io=0.5A, Tj= 0 C - 125 C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25 C, IO=5mA - 1.0A 7.7 8.0 8.3 V
Output Voltage Vo
Load Regulation DVo Tj=25 C,IO=5mA - 1.5A 80 mV
Line regulation DVo VI =10.5V to 25V,Tj=25 C 80 mV
Quiescent Current Iq Tj=25 C, IO=<1A 8.0 mA
Quiescent Current Change DIq VI =10.5V to 23V 1.0 mA
DIq IO=5mA - 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 58 mV
Temperature coefficient of Vo DVo/DT Io=5mA -0.9 mV/ C
Ripple Rejection RR VI =11.5V to 21.5V,
Peak Output Current IPK Tj=25 C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25 C 250 mA
Dropout Voltage Vd Tj=25 C 2.0 V
V
I =10.5V to 23V,
O=5mA - 1.0A, PD<15W
I
Tj=25 C,IO=0.25A - 0.75A 40 mV
VI =10.5V to 23V,Tj=25 C,Io=1A 80 mV
f=120Hz,Tj=25 C
Contek LM7809 ELECTRICAL CHARACTERISTICS
( VI=15V, Io=0.5A, Tj= 0 C - 125 C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25 C, IO=5mA - 1.0A 8.65 9.00 9.35 V
Output Voltage Vo
Load Regulation DVo Tj=25 C,IO=5mA - 1.5A 90 mV
Tj=25 C,IO=0.25A - 0.75A 45 mV
Line regulation DVo VI =11.5V to 25 V,
Tj=25 C, PD<15W
VI =11.5V to 24V,Tj=25 C,
Io<=1A
Quiescent Current Iq Tj=25 C, IO=<1A 8.0 mA
Quiescent Current Change DIq VI =11.5V to 24V 1.0 mA
DIq IO=5mA 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 58 mV
Temperature coefficient of Vo DVo/ DT Io=5mA -1.1 mV/ C
Ripple Rejection RR VI =12.5V to 22.5V,
f=120Hz,Tj=25 C
Peak Output Current IPK Tj=25 C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25 C 250 mA
Dropout Voltage Vd Tj=25 C 2.0 V
I =11.5V to 24V,
V
O=5mA - 1.0A,PD<15W
I
7.6 8.4 V
56 72 dB
8.6 9.4 V
90 mV
90 mV
56 72 dB
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
3
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LM78XX LINEAR INTEGRATED CIRCUIT
Contek LM7810 ELECTRICAL CHARACTERISTICS
( VI=16V, Io=0.5A, Tj= 0 C - 125 C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25 C, IO=5mA - 1.0A 9.6 10.0 10.4 V
Output Voltage Vo
Load Regulation DVo Tj=25 C,IO=5mA - 1.5A 100 mV
Line regulation DVo VI =13V to 25V,Tj=25 C 100 mV
Quiescent Current Iq Tj=25 C, IO=<1A 8.0 mA
Quiescent Current Change DIq VI =12.6V to 25V 1.0 mA
DIq IO=5mA - 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 58 mV
Temperature coefficient of Vo DVo/ DT Io=5mA -1.1 mV/ C
Ripple Rejection RR VI =13V - 23V,f=120Hz,Tj=25 C 56 72 dB
Peak Output Current IPK Tj=25 C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25 C 250 mA
Dropout Voltage Vd Tj=25 C 2.0 V
VI =12.5V to 25V,
O=5mA - 1.0A,PD<=15W
I
Tj=25 C,IO=0.25A - 0.75A 50 mV
VI =13V to 25V,
Tj=25 C,Io<=1A
Contek LM7812 ELECTRICAL CHARACTERISTICS
( VI=19V, Io=0.5A, Tj= 0 C - 125 C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25 C, IO=5mA - 1.0A 11.5 12.0 12.5 V
Output Voltage Vo
Load Regulation DVo Tj=25 C,IO=5mA - 1.5A 120 mV
Tj=25 C,IO=0.25A - 0.75A 60 mV
Line regulation DVo VI =14.5V to 30V,Tj=25 C 120 mV
VI =14.6V to 27V,Tj=25 C,
Io=1A
Quiescent Current Iq Tj=25 C, IO=<1A 8.0 mA
Quiescent Current Change DIq VI =14.5V to 30V 1.0 mA
DIq IO=5mA - 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 75 mV
Temperature coefficient of Vo DVo/DT Io=5mA -1.5 mV/ C
Ripple Rejection RR VI =15V - 25V,f=120Hz,Tj=25 C 55 72 dB
Peak Output Current IPK Tj=25 C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25 C 250 mA
Dropout Voltage Vd Tj=25 C 2.0 V
I =14.5V to 27V,
V
O=5mA - 1.0A,PD<15W
I
9.5 10.5 V
100 mV
11.4 12.6 V
120 mV
CONTEK
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LM78XX LINEAR INTEGRATED CIRCUIT
Contek LM7815 ELECTRICAL CHARACTERISTICS
( VI=23V, Io=0.5A, Tj= 0 C - 125 C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25 C, IO=5mA - 1.0A 14.4 15.0 15.6 V
Output Voltage Vo
Load Regulation DVo Tj=25 C,IO=5mA - 1.5A 150 mV
Tj=25 C,IO=0.25A - 0.75A 75 mV
Line regulation DVo VI =18.5V to 30V,Tj=25 C 150 mV
VI =17.7V to 30V,
Tj=25 C, I
Quiescent Current Iq Tj=25 C, IO=<1A 8.0 mA
Quiescent Current Change DIq VI =17.5V to 30V 1.0 mA
DIq IO=5mA - 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 90 mV
Temperature coefficient of Vo DVo/ DT Io=5mA -1.8 mV/ C
Ripple Rejection RR VI =18.5V to 28.5V
f=120Hz,Tj=25 C
Peak Output Current IPK Tj=25 C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25 C 250 mA
Dropout Voltage Vd Tj=25 C 2.0 V
I =17.5V to 30V,
V
O=5mA - 1.0A,PD<15W
I
O =1A
Contek LM7818 ELECTRICAL CHARACTERISTICS
( VI=27V, Io=0.5A, Tj= 0 C - 125 C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25 C, IO=5mA - 1.0A 17.3 18.0 18.7 V
Output Voltage Vo
Load Regulation DVo Tj=25 C,IO=5mA - 1.5A 180 mV
Line regulation DVo VI =21V to 33V,Tj=25 C 180 mV
Quiescent Current Iq Tj=25 C, IO=<1A 8.0 mA
Quiescent Current Change DIq VI =21.5V to 33V 1.0 mA
DIq IO=5mA - 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 110 mV
Temperature coefficient of Vo DVo/ DT Io=5mA -2.2 mV/ C
Ripple Rejection RR VI =22V - 32V,f=120Hz,Tj=25 C 53 69 dB
Peak Output Current IPK Tj=25 C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25 C 250 mA
Dropout Voltage Vd Tj=25 C 2.0 V
I =21V to 33V,IO=5mA - 1.0A 17.1 18.9 V
V
Tj=25 C,IO=0.25A - 0.75A 90 mV
VI =21V to 33V,
Tj=25 C, I
O =<1A,PD<15W
14.25 15.75 V
150 mV
54 70 dB
180 mV
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LM78XX LINEAR INTEGRATED CIRCUIT
Contek LM7824 ELECTRICAL CHARACTERISTICS
( VI=33V, Io=0.5A, Tj= 0 C - 12 C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25 C, IO=5mA - 1.0A 23.0 24.0 25.0 V
Output Voltage Vo
Load Regulation DVo Tj=25 C,IO=5mA - 1.5A 240 mV
Line regulation DVo VI =27V to 38V,Tj=25 C 240 mV
Quiescent Current Iq Tj=25 C, IO=<1A 8.0 mA
Quiescent Current Change DIq VI =28V to 38V 1.0 mA
DIq IO=5mA - 1.0A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 170 mV
Temperature coefficient of Vo DVo/DT Io=5mA -2.8 mV/ C
Ripple Rejection RR VI =28V - 38V,f=120Hz,Tj=25 C 50 66 dB
Peak Output Current IPK Tj=25 C 1.8 A
Short-Circuit Current ISC VI=35V, Tj=25 C 250 mA
Dropout Voltage Vd Tj=25 C 2.0 V
I =27V to 38V,IO=5mA - 1.0A 22.8 25.2 V
V
Tj=25 C,IO=0.25A - 0.75A 120 mV
VI =27V to 38V,Tj=25 C,Io=1A 240 mV
Note 1: The Maximum steady state usable output current are dependent on input voltage, heat sinking, lead length
Note 2: Power dissipation<0.5W
of the package and copper pattern of PCB. The data above represents pulse test conditions with junction
temperatures specified at the initiation of test.
APPLICATION CIRCUIT
Vi Vo
C1
0.33
mF
Note 1: To specify an output voltage, substitute voltage value for " XX".
Note 2: Bypass capacitors are recommended for optimum stability and transient response and should be located as
close as possible to the regulators.
Contek
1
3
LM78XX
2
C0
0.1 mF
CONTEK
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