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CJ7812Datasheet PDF
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JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., L
TD
TO-251/TO-252-2L
Plastic-Encapsulate
Volt
age Regulators
CJ7812
Three
-termi
na
l positiv
e volt
ag
e regu
lator
www.cj-elec.com 1 E,Jun,2016
2
Co
0.1μF
Vi 1 3 Vo
Ci
0.33μF
CJ7812
TY
PICAL APPLICATION
T
O
-2
51
-3L
/TO-252-2L
1.IN
2.GND
3.OU
T
1
3
2
1
3
2
FEATURES
Maximum output current
I
OM
: 1.5 A
Output voltage
V
O
: 12 V
z
z
Continuous
tot
a
l
dissip
ation
P
D
: 1.25 W
z
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)
P
arameter Symbol Value Unit
Input
V
o
lt
ag
e V
i
35 V
Thermal
Resistance from Junction to Ambient R
θJA
80
℃/W
Operating
Ju
nction
T
e
mperature Range
T
OPR
-25~+125
℃
St
orage
T
emperature Range T
ST
G
-65~+150
℃
ELECTRIC
ALCHARACTERISTICS AT SPECIFIED VIRTUAL JINCTION TEMPERATURE (Vi=19V, Io=500mA, Ci=0.33μF, Co=0.1μF, unless otherwise specified )
Pa
rameter
Symbol Test conditions Min Typ Max Unit
25℃
11
.5 12.0 12.5 V
Output Voltage
Vo
Io= 5mA-1A,
14.5V≤ V
i
≤27V
-25-125
℃
14.5V≤ Vi
≤30V
25℃
10 240
mV
Load Re
gulation ∆Vo
16V≤V
i
≤22V
25℃
3 120
mV
I
O
=5mA -1.5A
25℃
12 240
mV
Line
Regulation ∆Vo
I
O
=250mA
- 750mA
25℃
4 120
mV
Quiescent Curr
ent Iq
25℃
4.3 8
mA
5.0mA≤ I
O
≤1.0A
-25
-125℃
0.5 mA
Quiescent Curr
ent Change ∆Iq
14.5V ≤V
i
≤ 30V
-25
-125℃
1.0 mA
Output Voltage
Drift
Vo/ T△△
I
O
=5mA
-25-125
℃
-1 mV/℃
Output Noise Volt
age V
N
f =
10Hz to 100KHz
25℃
75
Rippl
e Rejection RR f =120Hz, 15V≤ V
i
≤25V
-25-125
℃
55 71 dB
Dropout V
oltage V
d
I
O
=1.0
A
25℃
2 V
Output Resistance R
O
f = 1KHz -25
-125℃
18
mΩ
Short Circuit Current Isc
25℃
350 mA
Peak Current
Ipk
25℃
2.2 A
μ
V/Vo
11
.4 12.0 12.6 V
*
Pulse test.
Note: Bypass capacitors are recommended for optimum stability and transient response and should be located as close as
possible to the regulators.
(T
a
= 25 ℃ )
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