NCP1417(2002) データシートの表示（PDF） - ON Semiconductor
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NCP1417 Datasheet PDF : 16 Pages
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NCP1417
1.220
1.215
1.210
1.205
VOUT = 3.3 V
L = 22 µH
Cin = 10 µF
Cout = 33 µF
CREF = 1 µF
TA = 25_C
1.200
1.195
VIN = 1.8 V
1.195
1.192
VIN = 2.2 V
VIN = 3 V
1.189
1.186
1.183
CREF = 1 µF
TA = 25_C
IREF = 0 mA
IREF = 2.5 mA
1.190
1
10
100
OUTPUT CURRENT, ILOAD/mA
Figure 3. Reference Voltage versus
Output Current
1.180
1000
1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
INPUT VOLTAGE at OUT PIN, VOUT/V
Figure 4. Reference Voltage versus
Input Voltage at OUT Pin
1.194
2
1.192
1.5
P–FET (M2)
1.19
1.188
1
N–FET (M1)
1.186
VOUT = 3.3 V
CREF = 150 nF
IREF = 0 mA
0.5
VOUT = 3.3 V
1.184
0
–40 –20
0
20 40 60 80 100
–40 –20
0
20 40 60 80 100
AMBIENT TEMPERATURE, TA/_C
AMBIENT TEMPERATURE, TA/_C
Figure 5. Reference Voltage versus
Temperature
Figure 6. Switch ON Resistance
versus Temperature
1.8
2.1
1.7
1.8
Without Schottky Diode
1.6
1.5
1.5
1.2
1.4
With Schottky Diode
1.3
0.9
(MBR0502)
1.2
0.6
–40 –20
0
20 40 60 80 100
0
20
40
60
80
100 120
AMBIENT TEMPERATURE, TA/_C
OUTPUT LOADING CURRENT, ILOAD/mA
Figure 7. Lx Switch Max. ON Time
versus Temperature
Figure 8. Min. Startup Battery Voltage
versus Loading Current
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