RoHS
WEJ78L05
TO-92
WEJ78L05
Three-terminal positive voltage regulator
FEATURES
Maximum Output
current
I
OM:
Output voltage
1. OUT
2. GND
3. IN
0.1
5
A
V
V
o
:
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
ELECTRICAL CHARACTERISTICS (VI=10V,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
Ripple Rejection
Dropout Voltage
TYPICAL APPLICATION
W
J
E
L
E
C
E
∆Vo
∆Vo
Iq
∆Iq
∆Iq
V
N
RR
Vd
3
Vo
R
T
Tj=25℃
Tj=25℃
U T
78L05
Test conditions
7V≤V
l
≤20V,
Io=1mA~40mA
7V≤V
l
≤20V,
Io=1mA~70mA
Tj=25℃, Io=1mA~40mA
8V≤V
l
≤20V,
Tj=25℃
O
N
C
I
30
Value
C
1 2 3
O
L
,
.
Unlts
V
℃
℃
D
T
-55~+150
-55~+150
MIN
4.8
4.8
4.8
TYP
5.0
5.0
9
5.0
6
4
2.3
MAX
5.2
5.2
5.2
60
30
150
100
6
1.5
0.1
UNIT
V
V
V
(note)
mV
mV
mV
mV
mA
mA
mA
uV
dB
V
Tj=25℃, Io=1mA~100mA
7V≤V
l
≤20V,
Tj=25℃
Tj=25℃
8V≤V
l
≤20V
1mA≤I
O
≤40mA
10Hz≤f≤100KHz
8V≤V
l
≤18V,f=120Hz,Tj=25℃
1
Vo
55
45
75
1.7
vi
C1
0. 4 7µF
2
C0
0.22µF
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