MAX8655(2007) Просмотр технического описания (PDF) - Maxim Integrated
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Компоненты Описание
производитель
MAX8655
(Rev.:2007)
(Rev.:2007)
Maxim Integrated
MAX8655 Datasheet PDF : 24 Pages
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Highly Integrated, 25A, Wide-Input,
Internal MOSFET, Step-Down Regulator
(TA = +25°C, unless otherwise noted.)
MAXIMUM OUTPUT CURRENT
vs. EXPOSED PAD TEMPERATURE
(CIRCUIT OF FIGURE 4)
30
25
20
15
10
5
0
-40 -20 0 20 40 60 80 100 120
EXPOSED PAD TEMPERATURE (°C)
Typical Operating Characteristics (continued)
EFFICIENCY vs. INPUT VOLTAGE
(CIRCUIT OF FIGURE 4)
100
90
80
70
60
50
40
30
20
10
0
5
VO = 3.3V
10A LOAD
8
11
14
17
20
INPUT VOLTAGE (V)
EFFICIENCY vs. OUTPUT VOLTAGE
(CIRCUIT OF FIGURE 4)
100
90
80
70
60
50
40
30
20
10
0
1.0
12V INPUT
10A LOAD
1.5 2.0 2.5 3.0 3.5
OUTPUT VOLTAGE (V)
100
90
80
70
60
50
40
30
20
10
0
1
EFFICIENCY vs. LOAD CURRENT
12V INPUT, 3.3V OUTPUT
(CIRCUIT OF FIGURE 4)
100
90
80
70
60
50
40
30
20
10
10
LOAD CURRENT (A)
0
100
200
BOTTOM LAYER PCB TEMPERATURE vs.
OUTPUT CURRENT
120
VIN = 12V, VCC = 1.2V
100
EFFICIENCY vs. FREQUENCY
12.0V INPUT 3.3V OUTPUT
(CIRCUIT OF FIGURE 4)
10A LOAD
300 400 500 600 700 800
FREQUENCY (kHz)
30
25
RVALLEY vs. VALLEY CURRENT LIMIT
200
180
160
140
120
100
80
60
40
20
0
0
5
10
15
20
25
VALLEY CURRENT LIMIT (A)
OUTPUT-CURRENT CAPABILITY
vs. AMBIENT TEMPERATURE
300 LFM
100 LFM
80
20
60
15
40
10
NO AIRFLOW
20
5
0
0
5
10
15
20
25
IOUT (A)
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
AMBIENT TEMPERATURE (°C)
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