参数资料
型号: MAX8744AETJ+T
厂商: Maxim Integrated Products
文件页数: 9/36页
文件大小: 0K
描述: IC CNTRLR PWR SUP QUAD 32TQFN
标准包装: 2,500
应用: 控制器,笔记本电脑电源系统
输入电压: 6 V ~ 26 V
输出数: 4
输出电压: 3.3V,5V,1 V ~ 26 V
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-WFQFN 裸露焊盘
供应商设备封装: 32-TQFN-EP(5x5)
包装: 带卷 (TR)
High-Efficiency, Quad-Output, Main Power-
Supply Controllers for Notebook Computers
Typical Operating Characteristics
(Circuit of Figure 1, V IN = 12V, SKIP = GND, FSEL = REF, T A = +25°C, unless otherwise noted.)
100
90
5V OUTPUT EFFICIENCY
vs. LOAD CURRENT
7V
100
90
5V OUTPUT EFFICIENCY
vs. LOAD CURRENT
SKIP MODE
5.10
5V OUTPUT VOLTAGE
vs. LOAD CURRENT
SKIP MODE
80
12V
80
5.05
5.00
LOW-NOISE MODE
70
60
20V
70
60
LOW-NOISE
MODE
PWM MODE
4.95
PWM MODE
SKIP MODE
50
PWM MODE
50
4.90
0.001
0.01
0.1 1
10
0.001
0.01
0.1 1
10
0.0
1.0
2.0 3.0
4.0
5.0
100
90
LOAD CURRENT (A)
3.3V OUTPUT EFFICIENCY
vs. LOAD CURRENT
7V
12V
100
90
LOAD CURRENT (A)
3.3V OUTPUT EFFICIENCY
vs. LOAD CURRENT
SKIP MODE
3.39
3.36
LOAD CURRENT (A)
3.3V OUTPUT VOLTAGE
vs. LOAD CURRENT
SKIP MODE
LOW-NOISE MODE
80
70
20V
80
70
LOW-NOISE
PWM MODE
3.33
3.30
PWM MODE
60
60
MODE
3.27
SKIP MODE
50
PWM MODE
50
3.24
0.001
0.01
0.1 1
10
0.001
0.01
0.1 1
10
0
1
2 3
4
5
3
LOAD CURRENT (A)
OUTPUT VOLTAGE DEVIATION
vs. INPUT VOLTAGE
100
LOAD CURRENT (A)
NO-LOAD INPUT SUPPLY CURRENT
vs. INPUT VOLTAGE
LOAD CURRENT (A)
STANDBY AND SHUTDOWN INPUT CURRENT
vs. INPUT VOLTAGE
100
2
3.3V OUTPUT
PWM MODE
STANDBY (ONx = GND)
1
SHUTDOWN
0
10
10
(SHDN = GND)
5.0V OUTPUT
-1
LOW-NOISE MODE
-2
SKIP MODE
-3
1
1
0
4
8 12
16
20
0
4
8 12
16
20
0
4
8 12
16
20
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
_______________________________________________________________________________________
9
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