ADP1073 データシートの表示（PDF） - Analog Devices
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ADP1073 Datasheet PDF : 16 Pages
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ADP1073–Typical Performance Characteristics
1.2
1
VIN = 5.0V
0.8
VIN = 3.0V
0.6
VIN = 1.5V
VIN = 2.0V
0.4
VIN = 1.25V
0.2
VIN = 1.0V
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2
SWITCH CURRENT – Amps
Figure 2. Saturation Voltage vs.
Switch Current in Step-Up Mode
2
1.8
SATURATION VOLTAGE
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0.05 0.1 0.2 0.3 0.4 0.5 0.6 0.7
SWITCH CURRENT – Amps
Figure 3. Switch ON Voltage vs.
Switch Current in Step-Down Mode
1400
1200
1000
800
VIN = 3V
WITH L = 82H
VIN = 12V
WITH L = 150H
600
400
VIN = 1.5V
WITH L = 82H
200
0
10 30
50 70 90 200 400 600 800 1000
RLIM – ⍀
Figure 4. Maximum Switch Current
vs. RLIM
1000
100
FOR VIN > 1.6V,
RLIM = 68⍀
10
0
1
1.5
2
2.5
3
3.5
INPUT VOLTAGE – Volts
Figure 5. Guaranteed Minimum
Output Current at VOUT = 5 V vs.
Input Voltage
120
110
100
90
80
70
60
50
40
؊40
0
25
70
85
TEMPERATURE – ؇C
Figure 6. Set Pin Bias Current vs.
Temperature
160
140
VIN = 1.5V
120
100
80
60
40
؊40
0
25
70
85
TEMPERATURE – ؇C
Figure 7. Supply Current vs.
Temperature
22
21
20
19
18
17
16
15
14
؊40
0
25
70
85
TEMPERATURE – ؇C
Figure 8. Oscillator Frequency vs.
Temperature
70
68
66
64
62
60
58
56
؊40
0
25
70
85
TEMPERATURE – ؇C
Figure 9. Duty Cycle vs. Temperature
34.5
34
33.5
33
32.5
32
31.5
31
30.5
30
؊40
0
25
70
85
TEMPERATURE – ؇C
Figure 10. Switch ON Time vs.
Temperature
–4–
REV. 0
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