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LTM4643MPV#PBF PDF预览

LTM4643MPV#PBF

更新时间: 2024-01-04 21:44:07
品牌 Logo 应用领域
凌特 - Linear 开关
页数 文件大小 规格书
32页 554K
描述
LTM4643 - Ultrathin Quad µModule Regulator with Configurable 3A Output Array; Package: LGA; Pins: 77; Temperature Range: -55°C to 125°C

LTM4643MPV#PBF 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:LGA包装说明:LGA,
针数:77Reach Compliance Code:compliant
风险等级:8.49其他特性:ALSO OPERATES IN ADJUSTABLE MODE FROM 0.6 TO 3.3V
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:20 V
最小输入电压:4 V标称输入电压:12 V
JESD-30 代码:R-PBGA-N77长度:15 mm
功能数量:1端子数量:77
最高工作温度:125 °C最低工作温度:-55 °C
封装主体材料:PLASTIC/EPOXY封装代码:LGA
封装形状:RECTANGULAR封装形式:GRID ARRAY
峰值回流温度(摄氏度):NOT SPECIFIED座面最大高度:1.92 mm
表面贴装:YES切换器配置:BUCK
最大切换频率:1200 kHz温度等级:MILITARY
端子形式:NO LEAD端子节距:1.27 mm
端子位置:BOTTOM处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:9 mmBase Number Matches:1

LTM4643MPV#PBF 数据手册

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LTM4643  
Ultrathin Quad µModule  
Regulator with Configurable  
3A Output Array  
FEATURES  
DESCRIPTION  
Quad Output Step-Down µModule® Regulator with  
The LTM®4643 is a quad DC/DC step-down µModule  
(powermodule)regulatorwith3Aperoutput. Outputscan  
be paralleled in an array for up to ±2A capability. Included  
in the package are the switching controllers, power FETs,  
inductors and support components. Operating over an  
input voltage range of 4V to 20V or 2.375V to 20V with  
an external bias supply, the LTM4643 supports an output  
voltage range of 0.6V to 3.3V each set by a single external  
resistor. Its high efficiency design delivers 3A continuous  
output current per channel. Only bulk input and output  
capacitors are needed.  
n
3A per Output  
n
Wide Input Voltage Range: 4V to 20V  
n
2.375V to 20V with External Bias  
n
0.6V to 3.3V Output Voltage  
n
3A DC Output Current Each Channel  
n
±±.5ꢀ Total Output Voltage Regulation  
n
Current Mode Control, Fast Transient Response  
n
Parallelable for Higher Output Current  
n
Output Voltage Tracking  
n
Internal Temperature Sensing Diode Output  
n
External Frequency Synchronization  
Fault protection features include overvoltage, overcurrent  
and overtemperature protection. The LTM4643 is offered  
in a 9mm ×±5mm × ±.82mm LGA and 9mm × ±5mm ×  
2.42mmBGApackageswithSnPb(BGA)orRoHScompli-  
ant terminal finish.  
n
Overvoltage, Current and Temperature Protection  
n
9mm × ±5mm × ±.82mm LGA and 9mm × ±5mm ×  
2.42mm BGA Packages  
APPLICATIONS  
Configurable Output Array*  
n
FPGAs, GPUs and ASICs Applications  
PCIe and Backside PCB Mounting  
3A  
6A  
n
3A  
3A  
3A  
9A  
3A  
±2A  
3A  
3A  
L, LT, LTC, LTM, Linear Technology, the Linear logo, µModule, LTpowerCAD and PolyPhase  
are registered trademarks of Analog Devices, Inc. All other trademarks are the property of their  
respective owners.  
* Note 4  
TYPICAL APPLICATION  
4V to 20V Input, Quad 0.9V, 1V, 1.2V and  
1.5V Output DC/DC µModule Regulator  
1.5V Output Efficiency and  
Power Loss (Each Channel)  
CLKIN  
CLKOUT  
95  
90  
85  
80  
75  
70  
65  
60  
55  
1.6  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0.0  
V
IN1  
V
4V to 20V  
1.5V/3A  
OUT1  
FB1  
PGOOD1  
22µF  
×2  
SVIN1  
RUN1  
47µF  
4V  
40.2k  
60.4k  
25V  
LTM4643  
V
V
1.2V/3A  
IN2  
OUT2  
FB2  
SVIN2  
RUN2  
47µF  
4V  
PGOOD2  
V
IN3  
V
1V/3A  
OUT3  
SVIN3  
RUN3  
FB3  
PGOOD3  
47µF  
4V  
90.9k  
121k  
V
V
= 5V  
= 12V  
IN  
IN  
V
IN4  
V
0.9V/3A  
OUT4  
FB4  
PGOOD4  
SVIN4  
RUN4  
47µF  
4V  
0
0.5  
1
1.5  
2
2.5  
3
LOAD CURRENT (A)  
TEMP SGND GND  
4643 TA01b  
4643 TA01a  
NOT ALL PINS  
ARE SHOWN  
4643fb  
1
For more information www.linear.com/LTM4643  

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