参数资料
型号: MAX8654EVKIT+
厂商: Maxim Integrated Products
文件页数: 5/17页
文件大小: 0K
描述: EVAL KIT MAX8654, MAX8688
标准包装: 1
系列: *
12V, 8A 1.2MHz
Step-Down Regulator
Typical Operating Characteristics
(Typical values are: V IN = V VP = 12V, V OUT = 3.3V, R FREQ = 100k ? , and T A = +25°C, circuit of Figure 1.)
100
EFFICIENCY vs. LOAD CURRENT
100
EFFICIENCY vs. LOAD CURRENT
100
EFFICIENCY vs. LOAD CURRENT
90
80
70
90
80
70
90
80
70
V OUT = 5V
60
50
V OUT = 1.8V
V OUT = 5V
V OUT = 3.3V
60
50
V OUT = 1.8V
V OUT = 3.3V
60
50
V OUT = 3.3V
40
30
20
40
30
20
40
30
20
V OUT = 1.8V
10
0
V IN = 12V, V VDL = V VP = 5V, f S = 500kHz
10
0
V IN = V VP = 5V, f S = 500kHz
10
0
V IN = V VP = 12V, f S = 500kHz
0.1
1
10
0.1
1
10
0.1
1
10
0.610
0.605
0.600
0.595
0.590
OUTPUT CURRENT (A)
REFERENCE VOLTAGE vs. TEMPERATURE
1200
1000
800
600
400
200
0
OUTPUT CURRENT (A)
SWITCHING FREQUENCY
vs. INPUT VOLTAGE
1400
1200
1000
800
600
400
200
0
OUTPUT CURRENT (A)
SWITCHING FREQUENCY vs. R FREQ
-50
-25
0
25
50
75
100
125
5
7
9
11
13
15
0
50
100
150
200
250
0
-0.05
-0.10
-0.15
-0.20
-0.25
-0.30
-0.35
TEMPERATURE ( ° C)
LOAD REGULATION
V OUT = 3.3V
V OUT = 1.8V
10
9
8
7
6
5
4
3
2
1
0
INPUT VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT
vs. INPUT VOLTAGE
9.0
8.8
8.6
8.4
8.2
8.0
7.8
7.6
7.4
7.2
7.0
R FREQ (k ? )
CURRENT LIMIT vs. OUTPUT VOLTAGE
0
1
2
3
4
5
6
7
8
0
2
4
6
8
10
12
14
1.5
.2.0
2.5
3.0
3.5
LOAD CURRENT (A)
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
_______________________________________________________________________________________
5
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