2
C
0
0.1F
JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
TO-92 Encapsulate Three-terminal Voltage Regulator
CJ78L18
Three-terminal positive voltage regulator
FEATURES
Maximum Output current
I
OM:
0.1 A
Output voltage
V
o
: 18 V
ABSOLUTE MAXIMUM RATINGS
Operating temperature range applies unless
otherwise specified
Parameter
Symbol
Value
Unlts
Input Voltage
V
i
35
V
Operating Junction Temperature Range
T
OPR
0--+125
Storage Temperature Range
T
STG
-55--+150
UTC78L05 ELECTRICAL CHARACTERISTICS
(VI=19V,Io=40mA,0
<Tj<125
,C1=0.33
F,Co=0.1
F, unless otherwise specified )
Parameter
Symbol
Test conditions
MIN
TYP
MAX
UNIT
Tj=25
17.3
18
18.7
V
21VV
l
33V, Io=1mA-40mA
17.1
18
18.9
V
Output voltage
Vo
21VV
l
V
MAX
, Io=1mA-70mA
17.1
18
18.9
V
(note)
Tj=25, Io=1mA-100mA
27
180
mV
Load Regulation
Vo
Tj=25, Io=1mA-40mA
19
90
mV
20.5VV
l
33V, Tj=25
70
360
mV
Line regulation
Vo
22VV
l
33V, Tj=25
60
300
mV
Quiescent Current
Iq
25
4.7
6.5
mA
Iq
21VV
l
33V
1.5
mA
Quiescent Current Change
Iq
1mAI
O
40mA
0.1
mA
Output Noise VoItage
V
N
10Hzf100KHz
89
uV
Ripple Rejection
RR
23VV
l
33V,f=120Hz,Tj=25
32
36
dB
Dropout Voltage
Vd
Tj=25
1.7
V
TYPICAL APPLICATION v
i
3 1 V
o
UTC
C
1
0.33F
Note : Bypass capacitors are recommended for optimum stability and transient response and should be located as close as
possible to the regulators.
1
2
3
CJ78L18
D
b
E
A
A
1
C
L
D1
e
e1
TO-92 PACKAGE OUTLINE DIMENSIONS
Symbol
A
A1
b
c
D
D1
E
e
e1
L
Min
3.300
1.100
0.380
0.360
4.400
3.430
4.300
2.440
14.100
0.000
Max
3.700
1.400
0.550
0.510
4.700
4.700
2.640
14.500
1.600
0.380
Min
0.130
0.043
0.015
0.014
0.173
0.135
0.169
0.096
0.555
0.000
Max
0.146
0.055
0.022
0.020
0.185
0.185
0.104
0.571
0.063
0.015
Dimensions In Millimeters
Dimensions In Inches
0.050TYP
1.270TYP
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