RoHS
WEJ78L12
SOT-89
WEJ78L12
Three-terminal positive voltage regulator
FEATURES
Maximum Output current
I
OM:
0.1 A
Output voltage
V
o
:
12 V
1. OUT
2. GND
3. IN
1
2
3
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)
Parameter
Input Voltage
Operating Junction Temperature Range
Storage Temperature Range
Symbol
V
l
T
OPR
T
STG
Value
35
UTC78L05 ELECTRICAL CHARACTERISTICS
(VI=19V,Io=40mA,0℃<Tj<125℃,C1=0.33µF,Co=0.1µF, unless otherwise specified )
Parameter
Symbol
Output voltage
Load Regulation
Line regulation
Quiescent Current
Quiescent Current Change
Output Noise VoItage
W
Ripple Rejection
Dropout Voltage
TYPICAL APPLICATION
J
E
E
C
E
L
Vo
∆Vo
∆Vo
Iq
∆Iq
∆Iq
V
N
RR
Vd
vi
3
C1
0.33µF
R
T
Test conditions
Tj=25℃
O
N
C
I
C
O
L
,
.
Unlts
V
℃
℃
D
T
0~+125
-5~5~+150
MIN
11.5
11.4
11.4
TYP
12
12
12
22
13
55
49
4.3
MAX
12.5
12.6
12.6
100
50
250
200
6.5
1.5
0.1
UNIT
V
V
V
(note)
mV
mV
mV
mV
mA
mA
mA
uV
dB
V
14V≤V
l
≤27V,
Io=1mA~40mA
14.5V≤V
l
≤V
MAX
, Io=1mA~70mA
Tj=25℃, Io=1mA~100mA
Tj=25℃, Io=1mA~40mA
14.5V≤V
l
≤27V,
Tj=25℃
16V≤V
l
≤27V,
Tj=25℃
16V≤V
l
≤27V
1mA≤I
O
≤40mA
10Hz≤f≤100KHz
15V≤V
l
≤25V,f=120Hz,Tj=25℃
Tj=25℃
1
Vo
70
37
42
1.7
UTC
78L12
2
C0
0.1µF
Note: Bypass capacitors are recommended for optimum stability and transient response and should be located as close as
possible to the regulators.
WEJ ELECTRONIC CO.
Http:// www.wej.cn
E-mail:wej@yongerjia.com
WINNERJOIN [ SHENZHEN YONGERJIA INDUSTRY CO.,LTD ]
