JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
TO-92 Encapsulate Three-terminal Voltage Regulator
ＴＯ－９２
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
Input Voltage
Operating Junction Temperature Range
Storage Temperature Range
Symbol
V
i
T
OPR
T
STG
Value
35
１．ＯＵＴ
２．ＧＮＤ
３．ＩＮ
1 2 3
Unlts
V
℃
℃
0—+125
-55—+150
UTC78L05 ELECTRICAL CHARACTERISTICS
(VI=19V,Io=40mA,0℃<Tj<125℃,C1=0.33μF,Co=0.1μF, unless otherwise specified )
Parameter
Symbol
Tj=25℃
Output voltage
V
o
21V≤V
l
≤33V,
Io=1mA-40mA
21V≤V
l
≤V
MAX
, Io=1mA-70mA
Load Regulation
△V
o
Tj=25℃, Io=1mA-100mA
Tj=25℃, Io=1mA-40mA
Line regulation
Quiescent Current
Quiescent Current Change
Output Noise VoItage
Ripple Rejection
Dropout Voltage
TYPICAL APPLICATION
v
i
△V
o
Iq
△Iq
△Iq
V
N
RR
Vd
3
UTC
CJ78L18
2
C
1
0.33μF
C
0
0.1μF
20.5V≤V
l
≤33V,
Tj=25℃
22V≤V
l
≤33V,
Tj=25℃
25℃
21V≤V
l
≤33V
1mA≤I
O
≤40mA
10Hz≤f≤100KHz
23V���V
l
≤33V,f=120Hz,Tj=25℃
Tj=25℃
1
V
o
32
89
36
1.7
Test conditions
MIN
17.3
17.1
17.1
TYP
18
18
18
27
19
70
60
4.7
MAX
18.7
18.9
18.9
180
90
360
300
6.5
1.5
0.1
UNIT
V
V
V
(note)
mV
mV
mV
mV
mA
mA
mA
uV
dB
V
Note : Bypass capacitors are recommended for optimum stability and transient respons e and should be located as close as
possible to the regulators.
JIANGSU [ JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD ]
