RoHS
WEJ78L12
WEJ78L12
Three-terminal positive voltage regulator
FEATURES
Maximum Output current
I
OM:
0.1
A
Output voltage
12
V
V
o
:
Operating and storage junction temperature range
T
J
, T
stg
: -55℃to +150℃
SOT-23-3L
1.
OUT
2.
IN
3. GND
1. 02
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)
Parameter
Input Voltage
Operating Junction Temperature Range
Storage Temperature Range
UTC78L05 ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Symbol
V
l
T
OPR
T
STG
Value
35
(VI=19V,Io=40mA,0℃<Tj<125℃,C1=0.33µF,Co=0.1µF, unless otherwise specified )
Output voltage
Load Regulation
Line regulation
Quiescent Current
Quiescent Current Change
W
Output Noise VoItage
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
1. 9
O
0.
0. 95¡ À 025
2. 80¡ À 05
0.
1. 60¡ À0. 05
L
,
.
Unlts
V
D
T
0~+125
℃
℃
-55~+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
0. 35
2. 92¡ À0. 05
UNIT
V
V
V
(note)
mV
mV
mV
mV
mA
mA
mA
uV
dB
V
14 V≤V
l
≤27V,
Io=1mA~40mA
14V≤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≤V
l
≤40mA
10Hz≤f≤100KHz
70
37
42
1.7
15V≤V
l
≤25V,f=120Hz,Tj=25℃
Tj=25℃
1
UTC
78L12
2
C0
0.1µF
Vo
Note 1: 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 ]
