参数资料
型号: MAX8744AETJ+
厂商: Maxim Integrated Products
文件页数: 12/36页
文件大小: 0K
描述: IC CNTRLR PWR SUP QUAD 32TQFN
标准包装: 60
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: 管件
High-Efficiency, Quad-Output, Main Power-
Supply Controllers for Notebook Computers
Typical Operating Characteristics (continued)
(Circuit of Figure 1, V IN = 12V, SKIP = GND, FSEL = REF, T A = +25°C, unless otherwise noted.)
OUTPUT OVERVOLTAGE
OUTPUT UNDERVOLTAGE
SKIP TRANSITION
MAX8744A toc22
FAULT PROTECTION (MAX8744A ONLY)
MAX8744A toc23
(SHORT-CIRCUIT) FAULT PROTECTION
MAX8744A toc24
3.3V
0
3.35V
3.25V
2A
0
12V
0
A
B
C
D
5V
0
3.3
0
5V
0
5V
0
A
B
C
D
5V
0
3.3V
0
5V
0
12V
0
A
B
C
D
40 μ s/div
1ms/div
20 μ s/div
A. SKIP, 5V/div
C. INDUCTOR CURRENT,
A. PGOOD3, 5V/div
C. 5V OUTPUT (V OUT5 ),
A. LOAD FET GATE, 5V/div
C. DL3, 5V/div
B. 3.3V OUTPUT (V OUT3 ),
100mV/div
0.5A LOAD
2A/div
D. LX3, 10V/div
B. 3.3V OUTPUT (V OUT3 ),
2V/div
5V/div
D. DL3, 5V/div
B. 3.3V OUTPUT (V OUT3 ), 1V/div D. DH3, 10V/div
30m Ω MOSFET
5.00V
LDOH5 LOAD TRANSIENT
MAX8744A toc25
5V
0
LDOHA LOAD TRANSIENT
MAX8744A toc26
A
4.95V
100mA
0
20 μ s/div
A
B
15.0V
14.5V
12.0V
11.9V
20 μ s/div
B
C
A. LDO5 OUTPUT, 50mV/div
B. LOAD CURRENT, 50mA/div
A. LOAD FET GATE, 5V/div
B. AUX LDO INPUT, 0.5V/div
0 TO 150mA LOAD TRANSIENT
C. AUX LDO OUTPUT (V OUTA ),
0.1V/div
12
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