MAX1960(2003) データシートの表示（PDF） - Maxim Integrated
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MAX1960
(Rev.:2003)
(Rev.:2003)
Maxim Integrated
MAX1960 Datasheet PDF : 29 Pages
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2.35V to 5.5V, 0.5% Accurate, 1MHz PWM
Step-Down Controllers with Voltage Margining
(Circuit of Figure 9, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
EFFICIENCY vs. LOAD CURRENT WITH
15A 1MHz CIRCUIT, 3.3V INPUT
100
VOUT = 2.5V
90
EFFICIENCY vs. LOAD CURRENT WITH
15A 1MHz CIRCUIT, 5V INPUT
100
VOUT = 3.3V
90
EFFICIENCY vs. LOAD CURRENT WITH
15A 500kHz CIRCUIT, 3.3V INPUT
100
VOUT = 2.5V
90
80
80
VOUT = 1.8V
70
70
VOUT = 1.5V
60
60
VOUT = 2.5V
VOUT = 1.8V
VOUT = 1.5V
80
VOUT = 1.8V
70
VOUT = 1.5V
60
50
0.1
1
10
100
LOAD CURRENT (A)
EFFICIENCY vs. LOAD CURRENT WITH
15A 500kHz CIRCUIT, 5V INPUT
100
VOUT = 3.3V
90
80
VOUT = 2.5V
VOUT = 1.8V
70
VOUT = 1.5V
60
50
0.1
1
10
100
LOAD CURRENT (A)
50
0.1
1
10
100
LOAD CURRENT (A)
OUTPUT VOLTAGE
vs. INPUT VOLTAGE, 1MHz
3.5
3.0
3.3V OUTPUT
2.5
DROPOUT
2.5V OUTPUT
2.0
1.8V OUTPUT
1.5
1.5V OUTPUT
1.0
1.2V OUTPUT
0.5
15A LOAD
0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
INPUT VOLTAGE (V)
FB REGULATION VOLTAGE
vs. LOAD CURRENT
0.803
0.802
0.801
0.800
0.799
0.798
0.797
0
5
10
15
20
LOAD CURRENT (A)
1200
1100
1000
900
800
700
600
500
400
3.0
50
0.1
1
10
100
LOAD CURRENT (A)
OUTPUT VOLTAGE
vs. INPUT VOLTAGE, 500kHz
3.5
3.0
3.3V OUTPUT
2.5
DROPOUT
2.0
1.5
1.0
2.5V OUTPUT
1.8V OUTPUT
1.5V OUTPUT
1.2V OUTPUT
0.5
15A LOAD
0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
INPUT VOLTAGE (V)
FREQUENCY
vs. INPUT VOLTAGE
FSET/SYNC = VCC
FSET/SYNC = GND
3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
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