2
Co
1F
JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
TO-220F Plastic-Encapsulate Voltage Regulator
CJ7912F
Three-terminal
negative
voltage regulator
FEATURES
Maximum Output
Current
I
OM
: 1.5 A
Output voltage
V
o :
12 V
ABSOLUTE MAXIMUM RATINGSO ( perating temperature range applies unless otherwise specified)
Parameter
Symbol
Value
Unit
Input Voltage
V
i
-35
V
Operating Junction Temperature Range
T
OPR
0-+125
Storage Temperature Range
T
STG
-55-+150
ELECTRICAL CHARACTERISTICS
(Vi=
-
19V, Io= 500mA, 0
<T
J
<125
,Ci=2F, Co=0.1F, unless otherwise specified )
Parameter
Symbol
Test conditions
MIN
TYP
MAX
UNIT
T
J
=25
-11.5 -12
-12.5
V
Output voltage
Vo
-14.5VV
i
-27V, Io=5mA-1A P15W -11.4
-12
-12.6
V
T
J
=25
, Io=5mA-1.5A
15
200
mV
Load Regulation
Vo
T
J
=25
, Io=250mA-750mA
5
75
mV
-14.5VV
i
-30V, T
J
=25
5
80
mV
Line regulation
Vo
-16VV
i
-22V, T
J
=25
3
30
mV
Quiescent Current
Iq
T
J
=25
2
3
mA
Iq -14.5VV
i
-30V
0.5
mA
Quiescent Current
Change
Iq 5mAI
O
1A
0.5
mA
Output Noise Voltage
V
N
10Hzf100KHz
300
V
Ripple Rejection
RR
-15VV
i
-25V, f=120Hz, T
J
=25
54 60
dB
Dropout Voltage
Vd
T
J
=25
, Io=1A
1.1
V
Peak Current
Ipk
T
J
=25
2.1
A
TYPICAL APPLICATION
Vi 1 3 Vo
UTC
Ci
2F
TO-220F
1. GND
2. IN
3. OUT
CJ7912F
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