参数资料
型号: MAX639ESA+T
厂商: Maxim Integrated Products
文件页数: 4/13页
文件大小: 0K
描述: IC REG BUCK 5V/ADJ 225MA 8SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 降压(降压)
输出类型: 两者兼有
输出数: 1
输出电压: 5V,1.3 V ~ 11.5 V
输入电压: 4 V ~ 11.5 V
电流 - 输出: 225mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
供应商设备封装: 8-SOIC
5V/3.3V/3V/Adjustable, High-Efficiency,
Low I Q , Step-Down DC-DC Converters
_____________________________Typical Operating Characteristics (continued)
(Circuit of Figure 3, internal feedback, L = 100μH, T A = +25°C, unless otherwise noted.)
EFFICIENCY vs.
OUTPUT CURRENT
EFFICIENCY vs.
INPUT VOLTAGE
EFFICIENCY vs.
INPUT VOLTAGE
100
90
L = 100 μ H
100
95
I OUT = 100mA
MAX639
100
95
L = 470 μ H
I OUT = 25mA
MAX639
80
MAX639, V+ = 6V
70
60
MAX640, V+ = 4.3V
MAX653, V+ = 4V
90
85
MAX640
90
85
MAX640
MAX653
MAX653
50
10 μ
100 μ
1m
10m
100m
1
80
3
4
5
6
7
8
9
10
11
12
80
3
4
5
6
7
8
9
10
11
12
250
OUTPUT CURRENT (A)
MAXIMUM OUTPUT CURRENT vs.
INPUT VOLTAGE
L = 100 μ H
75
65
V+ (V)
MAXIMUM OUTPUT CURRENT vs.
INPUT VOLTAGE
L = 470μH
150
125
V+ (V)
MAX639
OUTPUT VOLTAGE RIPPLE vs.
INPUT VOLTAGE
I OUT = 25mA
200
MAX640
MAX653
55
MAX640
MAX639
100
75
L = 100 μ H
45
150
50
L = 220 μ H
MAX639
35
MAX653
25
100
25
0
L = 470 μ H
3
4
5
6
7
8
9
10
11
12
3
4
5
6
7
8
9
10
11
12
5
6
7
8
9
10
11
12
150
125
V+ (V)
MAX640
OUTPUT VOLTAGE RIPPLE vs.
INPUT VOLTAGE
I OUT = 25mA
L = 100 μ H
V+ (V)
150
125
INPUT VOLTAGE (V)
MAX653
OUTPUT VOLTAGE RIPPLE vs.
INPUT VOLTAGE
I LOAD = 25mA
100
75
100
75
L = 100 μ H
50
L = 220 μ H
L = 470 μ H
50
L = 220 μ H
25
25
0
0
L = 470 μ H
3
4
5
6
7
8
9
10
11
12
3
4
5
6
7
8
9
10
11
12
V+ (V)
V+ (V)
4
_______________________________________________________________________________________
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