1
Co
1F
JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
TO-220 Encapsulate Voltage Regulator
CJ7908
Three-terminal positive voltage regulator
FEATURES
Maximum Output
current
I
OM
: 1.5 A
Output voltage
V
o
-8 V
ABSOLUTE MAXIMUM RATINGS
Operating temperature range applies unless otherwise specified
Parameter
Symbol
Value
Unit
Input Voltage
V
i
-35
V
Operating Junction Temperature Range
T
OPR
-20-+125
Storage Temperature Range
T
STG
-55-+150
ELECTRICAL CHARACTERISTICS(Vi=-23V,Io=500mA,0
<Tj<125
,Ci=0.33
F,Co=0.1
F, unless otherwise specified )
Parameter Symbol
Test
conditions
MIN
TYP
MAX
UNIT
Tj=25
-7.7 -8 -8.3 V
Output voltage
Vo
-10.5V
V
i
-23V, Io=5mA-1A
Po< 15W
-7.6 -8 -8.4 V
Tj=25
, Io=5mA-1.5A
15
160
mV
Load Regulation
Vo
Tj=25
, Io=250mA-750mA
5 80
mV
-10.5V
Vi
-25V, Tj=25
12.5
160
mV
Line regulation
Vo
-11V
Vi
-17V, Tj=25
4 80
mV
Quiescent Current
Iq
Tj=25
1.5 2
mA
Iq -10.5V
V
i
-25V
1
mA
Quiescent Current Change
Iq 5mA
I
O
1A
0.5
mA
Output Noise Voltage
V
N
10Hz
f
100KHz
200
V
Ripple Rejection
RR
-11.5V
V
i
-21.5V,f=120Hz,Tj=25
54 60 dB
Dropout Voltage
Vd
Tj=25
, Io=1A
1.1
V
Peak Current
Ipk
Tj=25
2.1
A
TYPICAL APPLICATION Vi 2 1 3 Vo
UTC
Ci
2.2
F
1 2 3
CJ7908
TO
--
220
1 GND
2. .IN
3.OUT
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