参数资料
型号: MAX1962
厂商: Maxim Integrated Products, Inc.
英文描述: 2.35V to 5.5V, 0.5% Accurate, 1MHz PWM Step-Down Controllers with Voltage Margining
中文描述: 2.35V至5.5V、0.5%精度、1MHz PWM降压型控制器,带有电压裕量控制
文件页数: 6/29页
文件大小: 455K
代理商: MAX1962
M
2.35V to 5.5V, 0.5% Accurate, 1MHz PWM
Step-Down Controllers with Voltage Margining
6
_______________________________________________________________________________________
Typical Operating Characteristics
(Circuit of Figure 9, T
A
= +25
°
C, unless otherwise noted.)
EFFICIENCY vs. LOAD CURRENT WITH
15A 1MHz CIRCUIT, 3.3V INPUT
M
LOAD CURRENT (A)
E
10
1
60
70
80
90
100
50
0.1
100
V
OUT
= 2.5V
V
OUT
= 1.8V
V
OUT
= 1.5V
EFFICIENCY vs. LOAD CURRENT WITH
15A 1MHz CIRCUIT, 5V INPUT
M
LOAD CURRENT (A)
E
10
1
60
70
80
90
100
50
0.1
100
V
OUT
= 3.3V
V
OUT
= 2.5V
V
OUT
= 1.8V
V
OUT
= 1.5V
EFFICIENCY vs. LOAD CURRENT WITH
15A 500kHz CIRCUIT, 3.3V INPUT
M
LOAD CURRENT (A)
E
10
1
60
70
80
90
100
50
0.1
100
V
OUT
= 2.5V
V
OUT
= 1.5V
V
OUT
= 1.8V
EFFICIENCY vs. LOAD CURRENT WITH
15A 500kHz CIRCUIT, 5V INPUT
M
LOAD CURRENT (A)
E
10
1
60
70
80
90
100
50
0.1
100
V
OUT
= 3.3V
V
OUT
= 2.5V
V
OUT
= 1.8V
V
OUT
= 1.5V
OUTPUT VOLTAGE
vs. INPUT VOLTAGE, 1MHz
M
INPUT VOLTAGE (V)
O
5.1
4.7
4.3
3.9
3.5
3.1
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
2.7
5.5
3.3V OUTPUT
2.5V OUTPUT
1.8V OUTPUT
1.5V OUTPUT
1.2V OUTPUT
15A LOAD
DROPOUT
OUTPUT VOLTAGE
vs. INPUT VOLTAGE, 500kHz
M
INPUT VOLTAGE (V)
O
5.1
4.7
4.3
3.9
3.5
3.1
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
2.7
5.5
3.3V OUTPUT
2.5V OUTPUT
1.8V OUTPUT
1.5V OUTPUT
1.2V OUTPUT
15A LOAD
DROPOUT
FB REGULATION VOLTAGE
vs. LOAD CURRENT
M
LOAD CURRENT (A)
F
15
10
5
0.798
0.799
0.800
0.801
0.802
0.803
0.797
0
20
FREQUENCY
vs. INPUT VOLTAGE
M
INPUT VOLTAGE (V)
F
5.0
4.5
3.5
4.0
500
600
700
800
1000
900
1100
1200
400
3.0
5.5
FSET/SYNC = V
CC
FSET/SYNC = GND
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