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參數(shù)資料
| 型號： | MAX746 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Parallel-Load 8-Bit Shift Registers 16-CDIP -55 to 125 |
| 中文描述： | 高效率、PWM、降壓型、N溝道DC-DC控制器 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 157K |
| 代理商： | MAX746 |
M
High-Effic ienc y, PWM, S tep-Down,
N-Channel DC-DC Controller
4
_______________________________________________________________________________________
N0-LOAD SUPPLY CURRENT
vs. SUPPLY VOLTAGE
N
0.8
0.9
1.0
1.1
1.2
5
7
9
11
13
15
SUPPLY VOLTAGE (V)
M
0
-75
NO-LOAD SUPPLY CURRENT
vs. TEMPERATURE
M
TEMPERATURE (°C)
N
3
1
4
2
-50 -25
0
25
50
75
100 125
V+ = 9V
V
OUT
= 5V
ENTIRE
CIRCUIT
SCHOTTKY DIODE
LEAKAGE EXCLUDED
4
0
0.01
PEAK INDUCTOR CURRENT
vs. OUTPUT CURRENT
1
2
M
OUTPUT CURRENT (A)
P
3
0.1
1
10
VIN = 12V
VIN = 9V
VIN = 6V
CIRCUIT OF FIGURE 1a
V
OUT
= 5V
1.5
0
0.01
PEAK INDUCTOR CURRENT
vs. OUTPUT CURRENT
0.5
M
OUTPUT CURRENT (A)
P
1.0
0.1
1
CIRCUIT OF FIGURE 1c
VOUT = 5V
VIN = 12V
VIN = 6V
10
100
70
0.01
EFFICIENCY vs. OUTPUT CURRENT
80
M
OUTPUT CURRENT (A)
E
90
0.1
1
10
VIN = 12V
VIN = 9V
VIN = 6V
CIRCUIT OF FIGURE 1a
V
OUT
= 5V
4
0
0.01
PEAK INDUCTOR CURRENT
vs. OUTPUT CURRENT
1
2
M
OUTPUT CURRENT (A)
P
3
0.1
1
10
CIRCUIT OF FIGURE 1b
VOUT = 3.3V
V+ = 5V
100
70
0.01
EFFICIENCY vs. OUTPUT CURRENT
80
M
OUTPUT CURRENT (A)
E
90
0.1
1
10
CIRCUIT OF FIGURE 1c
VOUT = 5V
VIN = 12V
VIN = 6V
100
70
0.01
EFFICIENCY vs. OUTPUT CURRENT
80
M
OUTPUT CURRENT (A)
E
90
0.1
1
10
CIRCUIT OF FIGURE 1b
VOUT = 3.3V
V+ = 5V
CONTINUOUS-CONDUCTION MODE
BOUNDARY AND CORRESPONDING
PEAK INDUCTOR CURRENT
S
5
7
9
11
13
0.7
OUTPUT CURRENT (A)
15
M
0.9
1.1
1.3
1.5
1.7
DISCONTINUOUS-
CONDUCTION REGION
CONTINUOUS-
CONDUCTION
REGION
PEAK
INDUCTOR
CURRENT
__________________________________________Typic al Operating Charac teristic s
(Circuit of Figure 1a, T
A
= +25°C, unless otherwise noted.)
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| MAX746CPE | Parallel-Load 8-Bit Shift Registers 16-CDIP -55 to 125 |
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