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78DXX LINEAR INTEGRATED CIRCUIT
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3-TERMINAL 0.5A POSITIVE
VOLTAGE REGULATOR
DESCRIPTION
The Contek78DXX family is monolithic fixed voltage
regulator integrated circuit .They are suitable for
applications that required supply current up to 0.5 A.
FEATURE
*Output current up to 0.5 A
*Fixed output voltage of 5V, 6V, 8V, 9V, 12V,
15V ,18V and 24V available
*Thermal overload shutdown protection
*Short circuit current limiting
*Output transistor SOA protection
TO-252
1
1:Input 2:GND 3:Output
EQUIVALENT 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
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
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78DXX LINEAR INTEGRATED CIRCUIT
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ABSOLUTE MAXIMUM RATINGS
( Operating temperature range applies unless otherwise specified )
PARAMETER SYMBOL VALUE UNIT
Input voltage(for Vo=5~18V)
(for Vo=20~24V)
V
I 35
40
V
V
Output Current I o 0.5 A
Power Dissipation PD Internally Limited W
Operating Junction Temperature Range
T
J +150 C
Storage Temperature Range
T
STG -65 to+150 C
Contek78D05 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 - 0.5A 4.8 5.0 5.2 V
Output Voltage Vo
V
I =7.5V to 20V,
I
O=5mA 0.5A,PD<7W
4.75 5.25 V
Load Regulation DVo Tj=25 C,IO=5mA - 0.5A 50 mV
Tj=25 C,IO=5mA - 200 mA 25 mV
Line regulation DVo VI =7V to 25V,Tj=25 C 50 mV
VI =7.5V to 20V,Tj=25 C,Io=0.5A 50 mV
Quiescent Current Iq Tj=25 C, IO=0.5A 8.0 mA
Quiescent Current Change DIq VI =7.5V to 20V 1.0 mA
DIq IO=5mA - 0.5A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 40 uV
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 1.2 A
Short-Circuit Current ISC VI=35V, Tj=25 C 250 mA
Dropout Voltage Vd Tj=25 C 2.0 V
Contek78D06 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 - 0.5A 5.75 6.0 6.26.2 V
Output Voltage Vo
V
I =8.5V to 21V,
I
O=5mA 0.5A, PD<7W
5.7 6.3 V
Load Regulation DVo Tj=25 C,IO=5mA - 0.5A 60 mV
Tj=25 C,IO=5mA - 200mA 30 mV
Line regulation DVo VI =8V to 25V,Tj=25 C 60 mV
VI =8.5V to 21V,Tj=25 C,Io=0.5A 60 mV
Quiescent Current Iq Tj=25 C, IO=0.5A 8.0 mA
Quiescent Current Change DIq VI =8.5V to 21V 1.0 mA
DIq IO=5mA 0.5A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 45 uV
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
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
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78DXX LINEAR INTEGRATED CIRCUIT
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PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Peak Output Current IPK Tj=25 C 1.2 A
Short-Circuit Current ISC VI=35V, Tj=25 C 250 mA
Dropout Voltage Vd Tj=25 C 2.0 V
Contek78D08 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 - 0.5A 7.7 8.0 8.3 V
Output Voltage Vo
V
I =10.5V to 23V,
I
O=5mA 0.5A, PD<7W
7.6 8.4 V
Load Regulation DVo Tj=25 C,IO=5mA - 0.5A 80 mV
Tj=25 C,IO=5mA - 200mA 40 mV
Line regulation DVo VI =10.5V to 25V,Tj=25 C 80 mV
VI =10.5V to 3V,Tj=25 C,Io=0.5A 80 mV
Quiescent Current Iq Tj=25 C, IO=0.5A 8.0 mA
Quiescent Current Change DIq VI =10.5V to 23V 1.0 mA
DIq IO=5mA - 0.5A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 58 uV
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 1.2 A
Short-Circuit Current ISC VI=35V, Tj=25 C 250 mA
Dropout Voltage Vd Tj=25 C 2.0 V
Contek78D09 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 - 0.5A 8.65 9.00 9.35 V
Output Voltage Vo
V
I =11.5V to 24V,
I
O=5mA - 0.5A,PD<7W
8.6 9.4 V
Load Regulation DVo Tj=25 C,IO=5mA - 0.5A 90 mV
Tj=25 C,IO=5mA - 200mA 45 mV
Line regulation DVo VI =11.5V to 25 V,Tj=25 C 90 mV
VI =11.5V to 24V,Tj=25 C,
Io=0.5A
90 mV
Quiescent Current Iq Tj=25 C, IO=0.5A 8.0 mA
Quiescent Current Change DIq VI =11.5V to 24V 1.0 mA
DIq IO=5mA 0.5A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 58 uV
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 1.2 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
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78DXX LINEAR INTEGRATED CIRCUIT
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Contek78D12 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 - 0.5A 11.5 12.0 12.5 V
Output Voltage Vo
V
I =14.5V to 27V,
I
O=5mA 0.5A,PD<7W
11.4 12.6 V
Load Regulation DVo Tj=25 C,IO=5mA - 0.5A 120 mV
Tj=25 C,IO=5mA - 200mA 60 mV
Line regulation DVo VI =14.5V to 30V,Tj=25 C 120 mV
VI =14.6V to 27V,Tj=25 C,
Io=0.5A
120 mV
Quiescent Current Iq Tj=25 C, IO=0.5A 8.0 mA
Quiescent Current Change DIq VI =14.5V to 30V 1.0 mA
DIq IO=5mA 0.5A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 75 uV
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 1.2 A
Short-Circuit Current ISC VI=35V, Tj=25 C 250 mA
Dropout Voltage Vd Tj=25 C 2.0 V
Contek78D15 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 - 0.5A 14.4 15.0 15.6 V
Output Voltage Vo
V
I =17.5V to 30V,
I
O=5mA - 0.5A,PD<7W
14.25 15.75 V
Load Regulation DVo Tj=25 C,IO=5mA - 0.5A 150 mV
Tj=25 C,IO=5mA - 200mA 75 mV
Line regulation DVo VI =18.5V to 30V,Tj=25 C 150 mV
VI =17.7V to 30V,
Tj=25 C, I
O =0.5A
150 mV
Quiescent Current Iq Tj=25 C, IO=0.5A 8.0 mA
Quiescent Current Change DIq VI =17.5V to 30V 1.0 mA
DIq IO=5mA 0.5A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 90 uV
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 1.2 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
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78DXX LINEAR INTEGRATED CIRCUIT
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Contek78D18 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 - 0.5A 17.3 18.0 18.7 V
Output Voltage Vo
V
I =21V to 33V,
I
O=5mA - 0.5A,PD<7W
17.1 18.9 V
Load Regulation DVo Tj=25 C,IO=5mA - 0.5A 180 mV
Tj=25 C,IO=5mA - 200mA 90 mV
Line regulation DVo VI =21V to 33V,Tj=25 C 180 mV
VI =21V to 33V,
Tj=25 C, I
O =0.5A
180 mV
Quiescent Current Iq Tj=25 C, IO=0.5A 8.0 mA
Quiescent Current Change DIq VI =21.5V to 33V 1.0 mA
DIq IO=5mA - 0.5A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 110 uV
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 1.2 A
Short-Circuit Current ISC VI=35V, Tj=25 C 250 mA
Dropout Voltage Vd Tj=25 C 2.0 V
Contek78D24 ELECTRICAL CHARACTERISTICS
( VI=33V, 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 - 0.5A 23.0 24.0 25.0 V
Output Voltage Vo
V
I =27V to 38V,
I
O=5mA - 0.5A, PD<7W
22.8 25.2 V
Load Regulation DVo Tj=25 C,IO=5mA - 0.5A 240 mV
Tj=25 C,IO=5mA - 200mA 120 mV
Line regulation DVo VI =27V to 38V,Tj=25 C 240 mV
VI =27V to 38V,Tj=25 C,Io=0.5A 240 mV
Quiescent Current Iq Tj=25 C, IO=0.5A 8.0 mA
Quiescent Current Change DIq VI =28V to 38V 1.0 mA
DIq IO=5mA - 0.5A 0.5 mA
Output Noise Voltage VN 10Hz<=f<=100kHz 170 uV
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 1.2 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
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
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78DXX LINEAR INTEGRATED CIRCUIT
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TYPICAL APPLICATION CIRCUIT
Contek
78DXX
3
2
1
C0
0.1 mF
C1
0.33 mF
Vi Vo
Note 1: To specify an output voltage, substitute voltage value for " DXX".
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
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