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參數(shù)資料
| 型號： | MAX1714 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | High-Speed Step-Down Controller for Notebook Computers |
| 中文描述： | 高速、降壓型控制器，用于筆記本電腦 |
| 文件頁數(shù)： | 6/24頁 |
| 文件大?。?/td> | 443K |
| 代理商： | MAX1714 |
M
High-Speed Step-Down Controller
for Notebook Computers
6
_______________________________________________________________________________________
_____________________________Typical Operating Characteristics (continued)
(Circuit of Figure 1, components from Table 1, V
IN
= +15V,
SKIP
= AGND, TON = unconnected, T
A
= +25°C, unless otherwise noted.)
0
2
1
3
4
5
6
7
8
9
0
10
INPUT VOLTAGE (V)
5
15
20
25
30
INDUCTOR CURRENT PEAKS AND VALLEYS
vs. INPUT VOLTAGE (4A COMPONENTS,
AT CURRENT-LIMIT TRIP POINT)
M
I
I
PEAK
I
VALLEY
0
200
400
600
800
0
10
INPUT VOLTAGE (V)
20
30
5
15
25
NO-LOAD SUPPLY CURRENT
(4A COMPONENTS, SKIP MODE, 300kHz)
M
S
μ
A
I
CC
I
IN
I
DD
10
8
0
0
5
20
30
NO-LOAD SUPPLY CURRENT vs.
INPUT VOLTAGE
(4A COMPONENTS, PWM MODE, 300kHz)
4
6
2
M
INPUT VOLTAGE (V)
S
10
15
25
I
CC
I
DD
I
IN
0
200
100
400
300
500
600
4.0
5.0
4.5
5.5
6.0
NO-LOAD SUPPLY CURRENT vs. INPUT
VOLTAGE (1.5A COMPONENTS,
SKIP MODE, V
OUT
= 2.5V, 600kHz)
M
V
CC
, V
DD
, V
IN
INPUT VOLTAGE (V)
S
μ
A
I
CC
I
DD
I
IN
0
12
10
2
4
8
6
I
OUT
AT CURRENT LIMIT vs.
TEMPERATURE
(4A COMPONENTS, V
OUT
=
2.5V)
M
TEMPERATURE (°C)
O
-40
20
40
-20
0
60
80
V
ILIM
= 1V
V
ILIM
= 0.5V
0
200
100
300
400
500
600
700
0
10
INPUT VOLTAGE (V)
5
15
20
25
30
CONTINUOUS TO DISCONTINUOUS INDUCTOR
CURRENT POINT vs. INPUT VOLTAGE
(4A COMPONENTS, V
OUT
= 2.5V)
M
L
300
0
0.01
10
1
0.1
LOAD CURRENT (A)
FREQUENCY vs. LOAD CURRENT
(4A COMPONENTS, V
OUT
= 2.5V)
100
50
250
200
350
150
M
F
V
IN
= 7V, 15V, PWM MODE
V
IN
= 15V
SKIP MODE
V
= 7V
SKIP MODE
280
290
300
310
320
FREQUENCY vs. INPUT VOLTAGE
(4A COMPONENTS, V
OUT
= 2.5V, I
OUT
= 1A)
M
INPUT VOLTAGE (V)
F
0
10
15
5
20
30
25
TEMPERATURE (
°
C)
F
300
310
305
320
315
330
325
FREQUENCY vs. TEMPERATURE
(4A COMPONENTS, V
OUT
= 2.5V)
M
-40
20
40
-20
0
60
80
I
OUT
= 4A
I
OUT
= 1A
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