参数资料
型号: MAX1744EUB/V+
厂商: Maxim Integrated Products
文件页数: 5/15页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM 10-UMAX
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
PWM 型: 控制器
输出数: 1
频率 - 最大: 330kHz
占空比: 100%
电源电压: 4.5 V ~ 36 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
包装: 管件
High-Voltage, Step-Down DC-DC
Controllers in μMAX
Typical Operating Characteristics
(Circuit of Figure 1, T A = +25°C, unless otherwise specified.)
EFFICIENCY vs. LOAD CURRENT
(V OUT = +3.3V)
EFFICIENCY vs. LOAD CURRENT
(V OUT = +5.0V)
IN PIN QUIESCENT CURRENT
vs. INPUT VOLTAGE (5.5V TO 36V)
100
80
A
B
100
80
A
B
110
105
60
C
D
60
C
D
100
95
40
40
90
20
0
A: V IN = +5.5V
B: V IN = +12.0V
C: V IN = +24.0V
D: V IN = +36.0V
20
0
A: V IN = +7.2V
B: V IN = +12.0V
C: V IN = +24.0V
D: V IN = +36.0V
85
80
0.0001
0.001
0.01
0.1
1
10
0.0001
0.001
0.01
0.1
1
10
0
10
20
30
40
6
5
4
LOAD CURRENT (A)
IN PIN QUIESCENT CURRENT
vs. INPUT VOLTAGE (3.5V TO 5.5V)
140
120
100
LOAD CURRENT (A)
SWITCHING FREQUENCY
vs. INPUT VOLTAGE
95
94
93
92
INPUT VOLTAGE (V)
IN PIN QUIESCENT CURRENT
vs. TEMPERATURE
3
80
60
91
90
89
2
40
88
1
0
V OUT = 3.3V
20
0
V OUT = 3.3V
I OUT = 2.0A
87
86
85
3.5
4.5
5.5
0
10
20
30
40
-50
-25
0
25
50
75
100
125
INPUT VOLTAGE (V)
EXT RISE AND FALL TIMES
vs. CAPACITANCE
INPUT VOLTAGE (V)
EXT RISE AND FALL TIMES
vs. TEMPERATURE
TEMPERATURE ( ° C)
CURRENT-SENSE TRIP LEVEL
vs. TEMPERATURE
120
100
V IN = +5V
50
45
40
V IN = +5V
C L = 1000pF
t RISE
115
110
80
35
30
105
60
40
20
t FALL
t RISE
25
20
15
10
t FALL
100
95
90
5
0
0
85
0
1000
2000
3000
4000
5000
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
CAPACITANCE (pF)
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
_______________________________________________________________________________________
5
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