JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
TO-251/252 Encapsulate Voltage Regulator
CJ7912
Three-terminal negative voltage regulator
TO-251
TO-252-2L
1. IN
FEATURES
Maximum Output current I
OM
: 1.5 A
Output voltage V
o
: - 12 V
Continuous total dissipation
1.25 W (T
J
= 25
℃
)
P
D
:
1
2. GND
3. OUT
1
123
ABSOLUTE MAXIMUM RATINGS(Operating temperature range applies unless otherwise specified)
Parameter
Input Voltage
Thermal resistance junction-air
Thermal resistance junction-cases
Operating Junction Temperature Range
Storage Temperature Range
Symbol
V
i
RθJA
RθJC
T
OPR
T
STG
Value
-35
65
5
0-150
-65-150
Unit
V
℃/W
℃/W
℃
℃
ELECTRICAL CHARACTERISTICS(Vi=-19V,Io=500mA,0℃<T
J
<125℃,Ci=0.33µF,Co=0.1µF, unless otherwise specified )
Parameter
Output voltage
Symbol
Vo
Test conditions
T
J
=25℃
-14.5V≤V
i
≤-27V,
Io=5mA-1A
P≤15W
T
J
=25℃, Io=5mA-1.5A
T
J
=25℃, Io=250mA-750mA
-14.5V≤V
i
≤-30V,
T
J
=25℃
-16V≤V
i
≤-22V,
T
J
=25℃
T
J
=25℃
-14.5V≤V
i
≤-30V
5mA≤I
O
≤1A
10Hz≤f≤100KHz
I
O
=5mA
-15V≤V
i
≤-25V,f=120Hz,
T
J
=25℃
T
J
=25℃, Io=1A
T
J
=25℃
2
CJ7912
UTC
Ci
2.2µF
1
Co
1µF
3
Vo
54
MIN
-11.5
-11.4
TYP
-12
-12
15
5
5
3
2
MAX
-12.5
-12.6
200
75
80
30
3
0.5
0.5
300
-0.8
60
1.1
2.1
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
µV
mV/℃
dB
V
A
Load Regulation
Line regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Output voltage drift
Ripple Rejection
Dropout Voltage
Peak Current
Vi
∆Vo
∆Vo
Iq
∆Iq
∆Iq
V
N
△
Vo/
△
T
RR
Vd
Ipk
TYPICAL APPLICATION
JIANGSU [ JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD ]
