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参数资料
| 型号： | MAX8744AETJ+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/36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) |
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High-Efficiency, Quad-Output, Main Power-
Supply Controllers for Notebook Computers
ABSOLUTE MAXIMUM RATINGS
IN, SHDN , DRVA, OUTA to GND............................-0.3V to +28V
LDO5, ON3, ON5, ONA to GND ..............................-0.3V to +6V
PGOODA, PGOOD3, PGOOD5 to GND...................-0.3V to +6V
CSL3, CSH3, CSL5, CSH5 to GND ..........................-0.3V to +6V
REF, FB3, FB5, FBA to GND...................-0.3V to (V LDO5 + 0.3V)
SKIP , FSEL, ILIM to GND........................-0.3V to (V LDO5 + 0.3V)
DL3, DL5 to PGND..................................-0.3V to (V LDO5 + 0.3V)
BST3, BST5 to PGND .............................................-0.3V to +34V
BST3 to LX3..............................................................-0.3V to +6V
DH3 to LX3 ..............................................-0.3V to (V BST3 + 0.3V)
BST5 to LX5..............................................................-0.3V to +6V
DH5 to LX5 ..............................................-0.3V to (V BST5 + 0.3V)
GND to PGND .......................................................-0.3V to +0.3V
BST3, BST5 to LDO5 .............................................-0.3V to +0.3V
LDO Short Circuit to GND ..........................................Momentary
REF Short Circuit to GND ...........................................Momentary
DRVA Current (Sinking) ......................................................30mA
OUTA Shunt Current ...........................................................30mA
Continuous Power Dissipation (T A = +70°C)
Multilayer PCB
32-Pin, 5mm x 5mm TQFN
(derated 34.5mW/°C above +70°C) .........................2459mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V IN = 12V, both SMPS enabled, FSEL = REF, SKIP = GND, ILIM = LDO5, FBA = LDO5, I REF = I LDO5 = I OUTA =
no load, T A = 0°C to +85°C , unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
INPUT SUPPLIES (Note 1)
V IN Input Voltage Range
V IN Operating Supply Current
V IN Standby Supply Current
V IN Shutdown Supply Current
V IN
I IN
I IN(STBY)
I IN(SHDN)
LDO5 in regulation
IN = LDO5, V CSL5 < 4.4V
LDO5 switched over to CSL5, either
SMPS on
V IN = 6V to 26V, both SMPS off, includes
I SHDN
V IN = 6V to 26V
5.4
4.5
20
65
8
26.0
5.5
36
120
20
V
μA
μA
μA
Both SMPS on, FB3 = FB5 = LDO5,
Quiescent Power Consumption
P Q
SKIP = GND, V CSL3 = 3.5V, V CSL5 = 5.3V,
V OUTA = 15V,
3.5
4.5
mW
P IN + P CSL3 + P CSL5 + P OUTA
MAIN SMPS CONTROLLERS
3.3V Output Voltage in Fixed
Mode
5V Output Voltage in Fixed Mode
Feedback Voltage in Adjustable
Mode (Note 2)
V OUT3
V OUT5
V FB_
V IN = 6V to 26V, SKIP = FB3 = LDO5,
0 < V CSH3 - V CSL3 < 50mV (Note 2)
V IN = 6V to 26V, SKIP = FB5 = LDO5,
0 < V CSH5 - V CSL5 < 50mV (Note 2)
V IN = 6V to 26V, FB3 or FB5
duty factor = 20% to 80%
V IN = 6V to 26V, FB3 or FB5
duty factor = 50%
3.265
4.94
1.980
1.990
3.315
5.015
2.010
2.010
3.365
5.09
2.040
2.030
V
V
V
2
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8744AEVKIT+ | 制造商:Maxim Integrated Products 功能描述:MAX8744A EVAL KIT - Rail/Tube |
| MAX8744ETJ+ | 功能描述:电流型 PWM 控制器 Quad-Out Main Power Supply Controller RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX8744ETJ+T | 功能描述:电流和电力监控器、调节器 Quad-Out Main Power Supply Controller RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| MAX8744EVKIT | 制造商:Maxim Integrated Products 功能描述:HIGH-EFFICIENCY QUAD OUTPUT MAIN - Rail/Tube |
| MAX8744EVKIT+ | 制造商:Maxim Integrated Products 功能描述:HIGH-EFFICIENCY QUAD OUTPUT MAIN - Rail/Tube |
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