78LXX LINEAR INTEGRATED CIRCUIT
3-TERMINAL 0.1A POSITIVE
VOLTAGE REGULATOR
DESCRIPTION
The Contek 78LXX family is monolithic fixed voltage
regulator integrated circuit. They are suitable for
applications that required supply current up to 100mA.
FEATURES
*Output current up to 100mA
*Fixed output voltage of 5V, 6V, 8V, 9V, 10V, 12V,
15V ,18V and 24V available
*Thermal overload shutdown protection
*Short circuit current limiting
TEST CIRCUIT
R13 R17 R9
T10
R14
R15
Z1
T15
R16
T8 T9
T11
T5
T6
T4
R4
R1 R2
T1 T2
R5
SOP-8
1
TO-92
1
SOT-89
SOP-8 1:Output 2,3,6,7:GND 8:Input
4,5:N.C.
TO-92 1:Output 2:GND; 3:Input
SOT-89 1:Output 2:GND; 3:Input
INPUT
3
Z2
T12
T14
R19
R18
T13
R6
C1
T7
T3
R11
R12
R10
R8
R7
OUTPUT
1
CONTEK
R3
Contek
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
GND
2
1
78LXX LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
( Operating temperature range applies unless otherwise specified )
PARAMETER SYMBOL MIN. MAX. UNIT
Input voltage(for Vo=5~9V)
(for Vo=12~24V)
Output Current Io 150 mA
Power Dissipation
SOP-8
TO-92
SOT-89
Operating Junction Temperature Range
Storage Temperature Range
I
V
V I
PD 300
OPR -20 +150 C
T
STG -55 +150 C
T
30
35
500
350
V
V
mW
Contek 78L05
( VI=10V, Io=40mA, 0 C <Tj<125 C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1)
ELECTRICAL CHARACTERISTICS
PARAMETER SYMBOL TEST CONDITIONS MIN TYP. MAX UNIT
Tj=25 C 4.9 5.0 5.1 V
Output Voltage Vo
Load Regulation Vo Tj=25 C,IO=1mA-100mA 11 60 mV
Line regulation Vo 7V<=VI<=20V,Tj=25 C 8 150 mV
Quiescent Current DIq VIN=10V,I O=0mA,Tj=25 C 2.0 5.5 mA
Quiescent Current Change DIq 8V<=VI<=20V 1.5 mA
DIq 1mA<=VI<=40mA 0.1 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 40 uV
Temperature coefficient of Vo Vo/T Io=5mA -0.65 mV/ C
Ripple Rejection RR 8V<=VI<=20V,f=120Hz,Tj=25 C 41 80 dB
Dropout Voltage Vd Tj=25 C 1.7 V
I<=20V,I O=1mA-40mA 4.9 5.1 V
7V<=V
7V<=VI<=VMAX,IO=1mA-70mA 4.85 5.15 V
Tj=25 C,IO=1mA-40mA 5.0 30 mV
8V<=VI<=20V,Tj=25 C 6 100 mV
Contek 78L06 ELECTRICAL CHARACTERISTICS
( VI=12V, Io=40mA, 0 C <Tj<125 C, C1=0.33uF, Co=0.1uF, unless otherwise specified ) ( Note 1 )
PARAMETER SYMBOL TEST CONDITIONS MIN TYP. MAX UNIT
Tj=25 C 5.75 6.0 6.25 V
Output Voltage VO
Load Regulation Vo Tj=25 C,IO=1mA-100mA 12.8 80 mV
Line regulation Vo 8.5V<=VI<=20V,Tj=25 C 64 175 mV
Quiescent Current DIq VIN=12V,I O=0mA,Tj=25 C 3.9 6.0 mA
Quiescent Current Change DIq 9V<=VI<=20V 1.5 mA
DIq 1mA<=VI<=40mA 0.1 mA
8.5V<=VI<=20V,I O=1mA-40mA 5.7 6.3 V
8.5V<=VI<=VMAX,
IO=1mA-70mA
Tj=25 C,IO=1mA-70mA 5.8 40 mV
9V<=VI<=20V,Tj=25 C 54 125 mV
5.7 6.3 V
(note 2)
(note 2)
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
2
78LXX LINEAR INTEGRATED CIRCUIT
PARAMETER SYMBOL TEST CONDITIONS MIN TYP. MAX UNIT
Output Noise Voltage VN 10Hz<=f<=100kHz 49 uV
Temperature coefficient of Vo Vo/T Io=5mA 0.75 mV/ C
Ripple Rejection RR 10V<=VI<=20V,f=120Hz,
Dropout Voltage Vd Tj=25 C 1.7 V
Tj=25 C
Contek 78L08 ELECTRICAL CHARACTERISTICS
(VI=14V,Io=40mA ,0 C<Tj<125 C,C1=0.33uF,Co=0.1uF,unless otherwise specified)(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25 C 7.7 8.0 8.3 V
Output Voltage VO
Load Regulation Vo Tj=25 C,IO=1mA-100mA 15 80 mV
Line regulation Vo 10.5V<=VI<=23V,Tj=25 C 10 175 mV
Quiescent Current DIq VIN=14V,I O=0mA,Tj=25 C 2.0 5.5 mA
Quiescent Current Change DIq 11V<=VI<=23V 1.5 mA
DIq 1mA<=VI<=40mA 0.1 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 49 uV
Temperature coefficient of Vo DVo/ DT Io=5mA 0.75 mV/ C
Ripple Rejection RR 11V<=VI<=23V,f=120Hz,Tj=25 C 39 70 dB
Dropout Voltage Vd Tj=25 C 1.7 V
10.5V<=VI<=23V,I O=1mA-40mA 7.6 8.4 V
10.5V<=VI<=VMAX,
IO=1mA-70mA
Tj=25 C,IO=1mA-70mA 8.0 40 mV
11V<=VI<=23V,Tj=25 C 8 125 mV
40 46 dB
7.6 8.4 V
(note 2)
Contek 78L09 ELECTRICAL CHARACTERISTICS
(VI=15V,Io=40mA ,0 C <Tj<125 C,C1=0.33uF,Co=0.1uF,unless otherwise specified)(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25 C 8.64 9.0 9.36 V
Output Voltage VO
Load Regulation Vo Tj=25 C,IO=1mA-100mA 20 90 mV
Line regulation Vo 11.5V<=VI<=24V,Tj=25 C 90 200 mV
Quiescent Current DIq VIN=15V,I O=0mA,Tj=25 C 2.0 6.0 mA
Quiescent Current Change DIq 13V<=VI<=24V 1.5 mA
DIq 1mA<=VI<=40mA 0.1 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 49 UV
Temperature coefficient of Vo DVo/ DT Io=5mA 0.75 mV/ C
Ripple Rejection RR 12V<=VI<=23V,f=120Hz,Tj=25 C 38 44 dB
Dropout Voltage Vd Tj=25 C 1.7 V
11.5V<=VI<=24V,I O=1mA-40mA 8.55 9.45 V
11.5V<=VI<=VMAX,
IO=1mA-70mA
Tj=25 C,IO=1mA-40mA 10 45 mV
13V<=VI<=24V,Tj=25 C 100 150 mV
8.55 9.45 V
Contek Microelectronics Co.,Ltd.
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(note 2)
3
78LXX LINEAR INTEGRATED CIRCUIT
Contek 78L12 ELECTRICAL CHARACTERISTICS
(VI=19V,Io=40mA ,0 C <Tj<125 C,C1=0.33uF,Co=0.1uF,unless otherwise specified)(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25 C 11.5 12 12.5 V
Output Voltage VO
Load Regulation Vo Tj=25 C,IO=1mA-100mA 25 150 mV
Line regulation Vo 14.5V<=VI<=27V,Tj=25 C 25 300 mV
Quiescent Current DIq VIN=19V,I O=0mA,Tj=25 C 2.0 6.0 mA
Quiescent Current Change DIq 16V<=VI<=27V 1.5 mA
DIq 1mA<=VI<=40mA 0.1 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 80 uV
Temperature coefficient of Vo DVo/ DT Io=5mA -1.0 mV/ C
Ripple Rejection RR 15V<=VI<=25V,f=120Hz,Tj=25 C 37 65 dB
Dropout Voltage Vd Tj=25 C 1.7 V
Contek 78L15 ELECTRICAL CHARACTERISTICS
(VI=23V,Io=40mA ,0 C <Tj<125 C,C1=0.33uF,Co=0.1uF,unless otherwise specified)(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage Vo
Load Regulation Vo Tj=25 C,IO=1mA-100mA 20 150 mV
Line regulation Vo 17.5V<=VI<=30V,Tj=25 C 25 150 mV
Quiescent Current DIq VIN=23V,IO=0mA,Tj=25 C 2.2 6.5 mA
Quiescent Current Change DIq 20V<=VI<=30V 1.5 mA
DIq 1mA<=VI<=40mA 0.1 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 90 uV
Temperature coefficient of Vo DVo/ DT Io=5mA -1.3 mV/ C
Ripple Rejection RR 18.5V<=VI<=28.5V,f=120Hz,
Dropout Voltage Vd Tj=25 C 1.7 V
14.5V<=VI<=27V,I O=1mA-40mA 11.4 12.6 V
14.5V<=VI<=VMAX,
IO=1mA-70mA
Tj=25 C,IO=1mA-40mA 12 75 mV
16V<=VI<=27V,Tj=25 C 20 250 mV
Tj=25 C 14.4 15 15.6 V
17.5V<=V
Tj=25 C,IO=1mA-70mA 25 150 mV
20V<=VI<=30V,Tj=25 C 15 75 mV
Tj=25 C
I<=30V,I O=1mA-40mA 14.25 15.75 V
17.5V<=VI<=VMAX,
IO=1mA-70mA
11.4 12.6 V
(note 2)
14.25 15.75 V
(note 2)
34 63 dB
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
4
78LXX LINEAR INTEGRATED CIRCUIT
Contek 78L18 ELECTRICAL CHARACTERISTICS
(VI=27V,Io=40mA ,0 C<Tj<125 C,C1=0.33uF,Co=0.1uF,unless otherwise specified)(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Tj=25 C 17.3 18 18.7 V
Output Voltage VO
Load Regulation Vo Tj=25 C,IO=1mA-100mA 30 170 mV
Line regulation Vo 21V<=VI<=33V,Tj=25 C 145 300 mV
Quiescent Current DIq VIN=27V,IO=0mA,Tj=25 C 2.0 6.0 mA
Quiescent Current Change DIq 21V<=VI<=33V 1.5 mA
DIq 1mA<=VI<=40mA 0.1 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 150 uV
Temperature coefficient of Vo DVo /DT Io=5mA -1.8 mV/ C
Ripple Rejection RR 23V<=VI<=33V,f=120Hz,Tj=25 C 34 48 dB
Dropout Voltage Vd Tj=25 C 1.7 V
Contek 78L24 ELECTRICAL CHARACTERISTICS
(VI=33V,Io=40mA ,0 C <Tj<125 C,C1=0.33uF,Co=0.1uF,unless otherwise specified)(Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VO
Load Regulation Vo Tj=25 C,IO=1mA-100mA 40 200 mV
Line regulation Vo 27V<=VI<=38V,Tj=25 C 160 300 mV
Quiescent Current DIq VIN=33V,IO=0mA,Tj=25 C 2.2 6.0 mA
Quiescent Current Change DIq 27V<=VI<=38V 1.5 mA
DIq 1mA<=VI<=40mA 0.1 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 200 uV
Temperature coefficient of Vo DVo/ DT Io=5mA -2.0 mV/ C
Ripple Rejection RR 27V<=VI<=38V,f=120Hz,Tj=25 C 34 45 dB
Dropout Voltage Vd Tj=25 C 1.7 V
21V<=VI<=33V,I O=1mA-40mA 17.1 18.9 V
21V<=VI<=VMAX,
IO=1mA-70mA
Tj=25 C,IO=1mA-40mA 15 85 mV
22V<=VI<=33V,Tj=25 C 135 250 mV
Tj=25 C 23 24 25 V
27V<=VI<=38V,I O=1mA-40mA 22.8 25.2 V
27V<=VI<=VMAX,
IO=1mA-70mA
Tj=25 C,IO=1mA-40mA 20 100 mV
28V<=VI<=38V,Tj=25 C 150 250 mV
17.1 18.9 V
(note 2)
22.8 25.2 V
(note 2)
Note 1: The Maximum steady state usable output current is dependent on input voltage, heat sinking, lead length of
the package and copper pattern of PCB. The data above represent pulse test conditions with junction
temperatures specified at the initiation of test.
Note 2: Power dissipation<0.5W
Contek Microelectronics Co.,Ltd.
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5
78LXX LINEAR INTEGRATED CIRCUIT
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
3
78LXX
2
1
C0
0.1mF
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
6
78LXX LINEAR INTEGRATED CIRCUIT
TYPICAL PERFORMANCE CHARACTERISTICS
Fig.1 Ambient temperature vs.
Power dissipation
500
400
300
SOT-89
200
Power Dissiaption(mW)
100
25 50 75 100
TO-92
Ambient Temperature( C)
Fig.4 Output Characteristics
(Ip=0mA,Tj=25
25
20
15
10
Output Voltage(V)
5
0
010 2030 40
Contek78L24
Contek78L12
Contek78L05
Input Voltage(V)
Fig.2 Conte 78L05 Output Voltage
vs.Ambient temperature
5.2
5.1
5.0
Output Volatge(V)
4.9
4.8
-50 0 50 100
Ambient Temperature( C)
Fig.5 Contek78L05Dropout
C)
5
4.5
Output Voltage(V)
4.1
Characteristics
(Tj=25
Io=0mA
Io=40mA
Io=100mA
6.0 6.5 7.0
Input Voltage(V)
C)
Fig.3 Contek78L12Power
dissipation vs. Ambient
temperature
12.1
12.0
11.9
Output Volatge(V)
11.8
11.7
-50 0 50 100
Ambient Temperature( C)
Fig.6 Short Circuit output current
(Tj=25 C)
500
400
300
200
Short circuit Current(mA)
100
010 2030 40
input-outputVoltage difference(V)
Fig.7 Contek78L12/24quiescent
current vs output current
(Tj=25
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
Quiescent Current (mA)
1.9
020 8040 60 100
Contek78L24
Contek78L12
Output Current (mA)
CONTEK
Fig.8 Contek78L05Quiescent
Current vs. Input Voltage
C)
(Io=0mA,Tj=25 C)
4
3
2
1
Quiescent Current (mA)
0
010 2030 40
Input Voltage(V)
Fig.9 Peak output current
vs Dropout voltage difference
400
300
200
100
Peak output current(mA)
010 2030 40
Input-output voltage difference(V)
Contek Microelectronics Co.,Ltd.
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(Tj=0 )
(Tj=25 )
(Tj=150 )
7
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