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參數資料
| 型號： | ADP1111AR-3.3 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 穩壓器 |
| 英文描述： | Micropower Step-Up/Step-Down SW Regulator. Adjustable and Fixed 3.3 V 5 V 12 V(406.88 k) |
| 中文描述： | 1.5 A SWITCHING REGULATOR, 88 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數： | 4/16頁 |
| 文件大小： | 406K |
| 代理商： | ADP1111AR-3.3 |
I
SWITCH
CURRENT – A
1.4
0
0.1
0.2
0.4
0.6
0.8
1.0
1.2
1.2
0.6
0.4
0.2
1.0
0.8
V
IN
= 2V
V
IN
= 3V
V
IN
= 5V
S
Figure 2. Saturation Voltage vs. I
SWITCH
Current in
Step-Up Mode
I
SWITCH
CURRENT – A
2.0
0
0.1
0.2
0.4
0.6
0.8
0.9
1.8
0.6
0.4
0.2
1.6
1.4
V
IN
= 12V
O
1.2
1.0
0.8
Figure 3. Switch ON Voltage vs. I
SWITCH
Current In
Step-Down Mode
INPUT VOLTAGE – V
1.5
30
3
6
9
12
15
18
21
24
27
0
1400
1200
1000
800
600
400
200
QUIESCENT CURRENT
Q
Figure 4. Quiescent Current vs. Input Voltage
ADP1111–Typical Characteristics
–4–
REV. 0
76
71
67
2
30
4
6
8
10
INPUT VOLTAGE – V
12
15
18
21
24
27
75
72
70
69
74
73
O
OSCILLATOR FREQUENCY
68
Figure 5. Oscillator Frequency vs. Input Voltage
R
LIM
–
1.9
1.7
0.1
1
1000
10
100
1.5
1.3
0.5
1.1
0.9
0.7
0.3
S
STEP-DOWN WITH
V
IN
= 12V
STEP-UP WITH
2V < V
IN
< 5V
Figure 6. Maximum Switch Current vs. R
LIM
O
TEMPERATURE –
8
C
80
70
60
–40
85
25
64
62
68
66
OSCILLATOR FREQUENCY
70
0
78
72
76
74
Figure 7. Oscillator Frequency vs. Temperature
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