LM78L12
Three-terminal positive voltage regulator
Maximum output
current
I
O:
0.1 A
Output voltage
V
O
: 12 V
Continuous total dissipation
P
D
: SOT-23-3L 0.35 W (T = 25
℃
)
a
SOT-89 0.5 W (T
a
= 25
℃
)
SOT-23-3L
1
SOT-89
3
2
1. OUT 2. IN
3. GND
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
0-+125
-55-+150
Unit
V
℃
℃
ELECTRICAL CHARACTERISTICS AT SPECIFIED VIRTUAL JINCTION TEMPERATURE
(VI=19V, Io=40mA, Ci=0.33μF,Co=0.1μF, unless otherwise specified )
Parameter
Symbol
Test conditions
25℃
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
mV
mV
mV
mV
mA
mA
mA
uV
dB
V
Output voltage
Vo
14V≤V
l
≤27V,
Io=1mA-40mA
Io=1mA-70mA
0-125℃
25℃
25℃
25℃
25℃
25℃
0-125℃
0-125℃
25℃
0-125℃
25℃
Load Regulation
Line regulation
Quiescent Current
Quiescent Current Change
Output Noise VoItage
Ripple Rejection
Dropout Voltage
TYPICAL APPLICATION
△
Vo
△
Vo
Iq
△
Iq
△
Iq
V
N
RR
Vd
vi
Io=1mA-100mA
Io=1mA-40mA
14.5V≤V
l
≤27V
16V≤V
l
≤27V
16V≤V
l
≤27V
1mA≤I
O
≤40mA
10Hz≤f≤100KHz
15V≤V
l
≤25V,f=120Hz
70
37
42
1.7
2
LM78L12
Ci
3
1
Vo
C0
0.1μF
0.33μF
Note : Bypass capacitors are recommended for optimum stability and transient response and should be located as close as
possible to the regulators.