LM78L12 [KEXIN]
Three-Terminal Positive Voltage Regulator; 三端的正电压调节器
| 型号： | LM78L12 |
| 厂家： | 
GUANGDONG KEXIN INDUSTRIAL CO.,LTD |
| 描述： | Three-Terminal Positive Voltage Regulator |
| 文件： | 总2页 (文件大小：54K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SMD Type
IC
Three-Terminal Positive Voltage Regulator
LM78L12
SOT-23
Unit: mm
2.9 0.1
0.4 0.1
3
Features
1
2
+0.05
-0.01
0.1
Maximum Output current IO: 0.1A
Output Voltage VO: 12V
0.95 0.1
1.9 0.1
Continuous Total Dissipation PD: 0.35W (Ta = 25
)
1.OUT
2.IN
3.GND
Absolute Maximum Ratings (Operating temperature range applies unless otherwise specified)
Parameter
Symbol
VI
Rating
35
Unit
V
Input Voltage
Operating Junction Temperature Range
Storage Temperature Range
TOPR
TSTG
-55
-55
+125
+150
Electrical Characteristics (VI=19V, IO=40mA,CI=0.33 F,CO=0.1 F, unless otherwise specified)
Parameter
Symbol
Testconditons
Min
11.5
11.4
11.4
Typ
12
12
12
22
13
55
49
4.3
Max
Unit
V
12.5
12.6
12.6
100
50
TJ = 25
Output Voltage
VO
V
TJ = 0 125 , 14V VI 27V, IO=1mA 40mA
TJ = 0 125 , IO=1mA 70mA
TJ = 25 , IO=1mA 100mA
TJ = 25 , IO=1mA 40mA
TJ = 25 , 14.5V VI 27V
TJ = 25 , 16V VI 27V
V
mV
mV
mV
mV
mA
Load Regulation
VO
250
200
6.5
Line Regulation
VO
IQ
Quiescent Current
Quiescent current Change
TJ = 25
1.5
TJ = 0 125 , 16V VI 27V
TJ = 0 125 , 1mA IO 40mA
mA
IQ
0.1
Output Noise Voltage
Ripple Rejection
Dropout Voltage
VN
RR
VD
70
42
TJ = 25 , 10Hz
f
100KHz
V
dB
V
37
TJ = 0 125 , 15V VI 25V, f = 120Hz
TJ = 25
1.7
Typical Application
VO
VI
2
1
LM78L12
3
Note:Bypass capacitors are recommended
for optimum stability and transient
response and should be located as
close as possible to the regulators.
CI
0.33
CO
0.1
F
F
1
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SMD Type
IC
LM78L12
Typical Characteristics
VO
(V)
VO
(V)
IO =0, TJ = 25
VIN = 19V, TJ = 25
24
20
16
24
16
8
12
8
4
0
10
20
30
0
100
200
300
VIN (V)
IO (mA)
Output Characteristics
Load Characteristics
IO
(mA)
VO
(V)
VIN = 19V , IO = 0mA
TJ = 25
30
25
300
20
15
10
200
100
5
0
50
100
150
0
10
20
30
TA (
)
VIN - VO (V)
Thermal Shutdown
Short Circuit Output Current
2
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