1
Co
1F
1 2 3
JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
TO-252-2L/TO-251 Plastic-Encapsulate Voltage Regulator
CJ7905
Three-terminal negative voltage regulator
FEATURES
Maximum Output current
I
OM
: 1.5 A
Output voltage V
o
: - 5V
Continuous total dissipation
P
D
: 1.25 W (T
J
= 25
)
15 W (T
C
= 25
)
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
0-150
Storage Temperature Range
T
STG
-65-150
ELECTRICAL CHARACTERISTICS
(Vi=-23V,Io=500mA,0
<T
J
<125
,Ci=0.33F,Co=0.1F, unless otherwise specified )
Parameter Symbol
Test
conditions
MIN
TYP
MAX
UNIT
T
J
=25
-4.8 -5 -5.2 V
Output voltage
Vo
-7VV
i
-20V, Io=5mA-1A ,P15W
-4.75 -5 -5.25 V
T
J
=25
, Io=5mA-1.5A
15
100
mV
Load Regulation
Vo
T
J
=25
, Io=250mA-750mA
5 50
mV
-7VV
i
-25V, T
J
=25
12.5 50
mV
Line regulation
Vo
-8VV
i
-12V, T
J
=25
4 15
mV
Quiescent Current
Iq
T
J
=25
1.5 2
mA
Iq -7VV
i
-25V
0.5
mA
Quiescent Current Change
Iq 5mAI
O
1A
0.5
mA
Output Noise Voltage
V
N
10Hzf100KHz
125
V
Ripple Rejection
RR
-8VV
i
-18V,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 2 1 3 Vo
UTC
Ci
2.2F
CJ7905
TO-251
TO-252-2L
1.IN
2.GND
3.OUT
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