參數(shù)資料
型號(hào): L4949N
廠商: ON SEMICONDUCTOR
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: MULTIFUNCTION VERY LOW DROPOUT VOLTAGE REGULATOR
中文描述: 5 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PDIP8
封裝: PLASTIC, DIP-8
文件頁數(shù): 4/8頁
文件大?。?/td> 191K
代理商: L4949N
L4949
4
MOTOROLA ANALOG IC DEVICE DATA
0
100
150
200
250
0.1
100
Iout, OUTPUT CURRENT (mA)
10
1.0
50
TJ = 25
°
C
V
0
–40
0.10
0.20
0.30
0.40
–20
0
40
60
20
100
120
TJ, JUNCTION TEMPERATURE (
°
C)
80
V
Iout = 50 mA
Iout = 10 mA
Iout = 100 mA
3.0
2.5
2.0
1.5
1.0
0.1
1.0
10
100
0.5
0
VCC = 14 V
TJ = 25
°
C
Iout, OUTPUT CURRENT (mA)
I
3.0
2.5
2.0
1.5
1.0
0
5.0
10
15
20
25
30
VCC, SUPPLY VOLTAGE (V)
0.5
0
RL = 5.0 k
RL = 100
TJ = 25
°
C
I
Figure 3. Dropout Voltage versus
Output Current
Figure 4. Dropout Voltage versus
Junction Temperature
Figure 5. Quiescent Current versus
Output Current
Figure 6. Quiescent Current versus
Supply Voltage
TYPICAL CHARACTERIZATION CURVES
(continued)
6.0
5.0
4.0
3.0
2.0
4.0
4.1
Vout, OUTPUT VOLTAGE (V)
1.0
0
Resistor 10 k
from Reset Output
to 5.0 V
TJ = 25
°
C
V
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
5.0
4.7
4.66
4.62
4.58
4.5
–40
–20
TJ, JUNCTION TEMPERATURE (
°
C)
4.46
4.42
Upper Threshold
V
0
20
40
60
80
100
120
4.54
Lower Threshold
Figure 7. Reset Output versus
Regulator Output Voltage
Figure 8. Reset Thresholds versus
Junction Temperature
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