JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
TO-220-3L Plastic-Encapsulate Voltage Regulators
TO-220-3L
CJ7808
FEATURES
Three
-terminal positive voltage regulator
1. IN
2. GND
3. OUT
1
2
3
Maximum
output
current
I
OM
:1.5 A
Output voltage
V
O
: 8V
Continuous total dissipation
P
D
: 1.5W
(T
a
= 25
℃
)
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)
Parameter
Input Voltage
Thermal
Resistance from Junction to Ambient
Operating Junction Temperature Range
Storage Temperature Range
Parameter
Output
Voltage
Symbol
Vo
Symbol
V
i
R
θJA
T
OPR
T
STG
Test conditions
25℃
10.5V≤V
i
≤23V,
Io=5mA-1A
Io=5mA-1.5A
Io=250mA-750mA
10.5V≤V
i
≤25V
11V≤V
i
≤17V
-25-125℃
25℃
25℃
25℃
25℃
25℃
10.5V≤V
i
≤25V
Value
35
66.7
-25~+125
-65~+150
Min
7.7
7.6
12
4
6
2
4.3
Typ
8
8
Unit
V
℃/W
℃
℃
Max
8.3
8.4
160
80
160
80
8
1
0.5
-0.8
52
Unit
V
V
mV
mV
mV
mV
mA
mA
mA
mV/℃
μV/Vo
dB
V
mΩ
mA
A
ELECTRICAL CHARACTERISTICS AT SPECIFIED VIRTUAL JINCTION TEMPERATURE(Vi=14V,Io=500mA,
Ci=0.33μF, Co=0.1μF, unless otherwise specified )
Load Regulation
∆Vo
Line
Regulation
Quiescent Current
Quiescent Current Change
Output
Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Output
Resistance
Short Circuit Current
Peak Current
*
Pulse test.
TYPICAL APPLICATION
∆Vo
Iq
∆Iq
∆V
O
/∆T
V
N
RR
Vd
R
O
Isc
Ipk
Vi
-25-125℃
-25-125℃
-25-125℃
25℃
-25-125℃
25℃
25
℃
25℃
25℃
55
5mA≤I
O
≤1A
I
O
=5mA
10Hz≤f≤100KHz
11.5V≤V
i
≤21.5V,f=120Hz
Io=1A
f=1KH
Z
72
2
10
450
2.2
1
CJ7808
3
Vo
UTC
2
Ci
0.33μF
Co
0.1μF
Note: Bypass capacitors are recommended for optimum stability and transient response and should be located as close as
possible to the regulators.
www.cj-elec.com
1
F,Jun,2016
Typical Characteristics
Output Characteristics
10
10
Dropout Characteristics
I
O
=0mA
T
j
=25
℃
T
j
=25
℃
8
8
(V)
(V)
OUTPUT VOLTAGE V
O
6
V
O
6
OUTPUT VOLTAGE
O
I
=0
m
A
4
4
I
O
=250mA
、
500mA
、
750mA
、
1A
、
1.5A
2
2
0
0
5
10
15
20
25
30
35
0
5
6
7
8
9
10
11
12
INPUT VOLTAGE
V
IN
(V)
INPUT VOLTAGE
V
IN
(V)
Quiescent Current vs Input Voltage
4.0
10
Current Cut-off Grid Voltage
I
O
=0mA
V
IN
=14V
9
3.5
T
j
=25
℃
(V)
T
j
=25
℃
Pulsed
(mA)
3.0
8
I
Q
QUIESCENT CURRENT
2.5
OUTPUT VOLTAGE
0
5
10
15
20
25
30
35
V
O
7
6
5
4
3
0.0
2.0
1.5
1.0
0.5
0.0
0.5
1.0
1.5
2.0
2.5
INPUT VOLTAGE
V
IN
(V)
OUTPUT CURRENT
I
O
(A)
Output Voltage vs Junction Temperature
12
2.0
Power Derating Curve
V
in
=14V
I
O
=5mA
(W)
POWER DISSIPATION
P
D
1.0
6
0.5
3
0.0
-25
(V)
9
1.5
OUTPUT VOLTAGE V
O
-25
0
25
50
75
100
125
0
25
50
75
100
125
JUNCTION TEMPERATURE
T
J
(
℃
)
JUNCTION TEMPERATURE
T
J
(
℃
)
www.cj-elec.com
2
F,Jun,2016