参数资料
型号: MAX8717ETI+T
厂商: Maxim Integrated Products
文件页数: 8/30页
文件大小: 0K
描述: IC CNTRLR PWR SUP 28-TQFN
标准包装: 2,500
应用: 控制器,笔记本电脑电源系统
输入电压: 4 V ~ 26 V
输出数: 2
输出电压: 3.3V,5V,1 V ~ 5.5 V
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(5x5)
包装: 带卷 (TR)
Interleaved High-Efficiency, Dual Power-Supply
Controllers for Notebook Computers
Typical Operating Characteristics (continued)
(Circuit of Figure 1, MAX8717, V IN = 12V, V DD = V CC = 5V, SKIP_ = GND, FSEL = REF, T A = +25°C, unless otherwise noted.)
100
1.8V OUTPUT EFFICIENCY
vs. LOAD CURRENT
28
NO-LOAD SUPPLY CURRENT vs. INPUT
VOLTAGE (FORCED-PWM MODE)
10
NO-LOAD SUPPLY CURRENT vs. INPUT
VOLTAGE (IDLE MODE)
90
V IN = 12V
L = 3.2 μ H
SKIP
MODE
24
20
I BIAS
1
SKIP1 = SKIP2 = GND OR REF
ON1 = ON2 = V CC
80
16
I BIAS
70
60
PWM
MODE
LOW-NOISE
MODE
12
8
4
I IN
SKIP1 = SKIP2 = V CC
ON1 = ON2 = V CC
0.1
I IN
50
0
0.01
0.001
0.01
0.1
1
10
0
4
8
12
16
20
24
0
4
8
12
16
20
24
LOAD CURRENT (A)
OUT2 IDLE-MODE CURRENT
vs. INPUT VOLTAGE
INPUT VOLTAGE (V)
OUT2 SWITCHING FREQUENCY
vs. LOAD CURRENT
INPUT VOLTAGE (V)
5V OUTPUT VOLTAGE
vs. INPUT VOLTAGE
2.0
1.8
MAXIMUM DUTY-
CYCLE LIMITED
1000
SKIP2 = V CC
5.05
1.6
1.4
SKIP2 = GND
100
SKIP2 = REF
5.00
1.2
1.0
0.8
0.6
SKIP2 = REF
10
SKIP2 = GND
4.95
0.4
0.2
SKIP2 = V CC
0
1
4.90
0
4
8
12
16
20
24
0.001
0.01
0.1
1
10
0
4
8
12
16
20
24
INPUT VOLTAGE (V)
3.3V OUTPUT VOLTAGE
vs. INPUT VOLTAGE
3.40
LOAD CURRENT (A)
0.4
INPUT VOLTAGE (V)
OUT2 DROPOUT VOLTAGE
vs. LOAD CURRENT
0.3
3.35
0.2
3.30
0.1
3.25
SKIP1 = V CC
0
V OUT2 = 4.8V
0
4
8
12
16
20
24
0
1
2
3
4
5
INPUT VOLTAGE (V)
LOAD CURRENT (A)
8
_______________________________________________________________________________________
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