LM78XX LINEAR INTEGRATED CIRCUIT
1
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 TO-220
1
1:Input 2:GND 3:Output
TEST CIRCUIT
3
1
2
GND
OUTPUT
INPUT
R13 R17 R9 Z2 T12
T14
R19
R18
R12
R11 R10
R8
T8 T9
T13
T10
R14
T11 T5
T6
R5
T4
Z1
R15
T15
R16 R1 R2
R4
C1
R6
T7
T3
T1 T2
R3
R7
Contek
3-TERMINAL 1A POSITIVE
VOLTAGE REGULATOR
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
LM78XX LINEAR INTEGRATED CIRCUIT
2
ABSOLUTE MAXIMUM RATINGS
( Operating temperature range applies unless otherwise specified )
PARAMETER SYMBOL RATING UNIT
Input voltage(for Vo=5~18V)
(for Vo=24V) VI
35
40
V
V
Output Current I o 1 A
Power Dissipation PD Internally Limited W
Operating Junction Temperature Range TOPR -20 +150 C
Storage Temperature Range TSTG -55 +150 C
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 VI=7.5V to 20V,
IO=5mA - 1.0A,PD<15W
4.75 5.25 V
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 VN10Hz<=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
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 VI=8.5V to 21V,
IO=5mA - 1.0A, PD<15W
5.7 6.3 V
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 VN10Hz<=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
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
LM78XX LINEAR INTEGRATED CIRCUIT
3
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 VI=10.5V to 23V,
IO=5mA - 1.0A, PD<15W
7.6 8.4 V
Load Regulation DVo Tj=25 C,IO=5mA - 1.5A 80 mV
Tj=25 C,IO=0.25A - 0.75A 40 mV
Line regulation DVo VI=10.5V to 25V,Tj=25 C 80 mV
VI=10.5V to 23V,Tj=25 C,Io=1A 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 VN10Hz<=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,
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
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 VI=11.5V to 24V,
IO=5mA - 1.0A,PD<15W
8.6 9.4 V
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
90 mV
VI=11.5V to 24V,Tj=25 C,
Io<=1A
90 mV
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 VN10Hz<=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
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
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
LM78XX LINEAR INTEGRATED CIRCUIT
4
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 VI =12.5V to 25V,
IO=5mA - 1.0A,PD<=15W
9.5 10.5 V
Load Regulation DVo Tj=25 C,IO=5mA - 1.5A 100 mV
Tj=25 C,IO=0.25A - 0.75A 50 mV
Line regulation DVo VI =13V to 25V,Tj=25 C 100 mV
VI =13V to 25V,
Tj=25 C,Io<=1A
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 VN10Hz<=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
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 VI=14.5V to 27V,
IO=5mA - 1.0A,PD<15W
11.4 12.6 V
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
120 mV
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 VN10Hz<=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
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
LM78XX LINEAR INTEGRATED CIRCUIT
5
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 VI=17.5V to 30V,
IO=5mA - 1.0A,PD<15W
14.25 15.75 V
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, IO=1A
150 mV
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 VN10Hz<=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
54 70 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
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 VI=21V to 33V,I O=5mA - 1.0A 17.1 18.9 V
Load Regulation DVo Tj=25 C,IO=5mA - 1.5A 180 mV
Tj=25 C,IO=0.25A - 0.75A 90 mV
Line regulation DVo VI=21V to 33V,Tj=25 C 180 mV
VI=21V to 33V,
Tj=25 C, IO=<1A,PD<15W
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 VN10Hz<=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
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
LM78XX LINEAR INTEGRATED CIRCUIT
6
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 VI=27V to 38V,I O=5mA - 1.0A 22.8 25.2 V
Load Regulation DVo Tj=25 C,IO=5mA - 1.5A 240 mV
Tj=25 C,IO=0.25A - 0.75A 120 mV
Line regulation DVo VI=27V to 38V,Tj=25 C 240 mV
VI=27V to 38V,Tj=25 C,Io=1A 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 VN10Hz<=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
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.
Note 2: Power dissipation<0.5W
APPLICATION CIRCUIT
Contek
LM78XX
3
2
1
C0
0.1 mF
C1
0.33
mF
Vi Vo
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
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com