JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
TO-220 Encapsulate Voltage Regulator
CJ7908
TO—220
Three-terminal positive voltage regulator
FEATURES
Maximum Output
current
I
OM
:
V
o
：
1.5
A
Output voltage
-8
V
1 GND
2. .IN
3.OUT
123
ABSOLUTE MAXIMUM RATINGS（Operating temperature range applies unless otherwise specified）
Parameter
Input Voltage
Operating Junction Temperature Range
Storage Temperature Range
Symbol
V
i
T
OPR
T
STG
Value
-35
-20-+125
-55-+150
Unit
V
℃
℃
ELECTRICAL CHARACTERISTICS(Vi=-23V,Io=500mA,0℃<Tj<125℃,Ci=0.33μF,Co=0.1μF,
unless otherwise specified )
Parameter
Output voltage
Symbol
Vo
Test conditions
Tj=25℃
-10.5V≤V
i
≤-23V,
Io=5mA-1A
Po< 15W
Tj=25℃, Io=5mA-1.5A
Tj=25℃, Io=250mA-750mA
-10.5V≤
Vi
≤-25V,
Tj=25℃
-11V≤
Vi
≤-17V,
Tj=25℃
Tj=25℃
-10.5V≤V
i
≤-25V
5mA≤I
O
≤1A
10Hz≤f≤100KHz
-11.5V≤V
i
≤-21.5V,f=120Hz,Tj=25℃
Tj=25℃, Io=1A
Tj=25℃
1
CJ7908
UTC
1
Ci
2.2μF
Co
1μF
3
Vo
MIN
-7.7
-7.6
TYP
-8
-8
15
5
12.5
4
1.5
MAX
-8.3
-8.4
160
80
160
80
2
1
0.5
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
dB
V
A
Load Regulation
Line regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Peak Current
TYPICAL APPLICATION
Vi
△Vo
△Vo
Iq
△Iq
△Iq
V
N
RR
Vd
Ipk
2
200
54
60
1.1
2.1
JIANGSU [ JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD ]
