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LTM4644EY-1#PBF PDF预览

LTM4644EY-1#PBF

更新时间： 2024-02-01 03:47:12
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
36页 1041K
描述
LTM4644 - Quad DC/DC µModule (Power Module) Regulator with Configurable 4A Output Array; Package: BGA; Pins: 77; Temperature Range: -40°C to 85°C

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LTM4644EY-1#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：BGA包装说明：BGA-77
针数：77Reach Compliance Code：compliant
风险等级：8.48Base Number Matches：1

LTM4644EY-1#PBF 数据手册

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LTM4644/LTM4644-1  
Quad DC/DC µModule  
Regulator with Configurable 4A Output Array  
FEATURES  
DESCRIPTION  
Quad Output Step-Down µModule® Regulator with 4A  
per Output  
The LTM®4644/LTM4644-1 is a quad DC/DC step-down  
µModule (micromodule) regulator with 4A per output.  
Outputs can be paralleled in an array for up to 16A capabil-  
ity. Included in the package are the switching controllers,  
powerFETs,inductorsandsupportcomponents.Operating  
over an input voltage range of 4V to 14V or 2.375V to 14V  
with an external bias supply, the LTM4644/LTM4644-1  
supports an output voltage range of 0.6V to 5.5V. Its  
high efficiency design delivers 4A continuous (5A peak)  
output current per channel. Only bulk input and output  
capacitors are needed.  
n
n
Wide Input Voltage Range: 4V to 14V  
n
2.375V to 14V with External Bias  
n
n
n
0.6V to 5.5V Output Voltage  
4A DC, 5A Peak Output Current Each Channel  
Up to 5.5W Power Dissipation (T = 60°C, 200 LFM,  
A
No Heat Sink)  
n
n
n
n
n
n
n
n
1.5ꢀ Total Output Voltage Regulation  
Current Mode Control, Fast Transient Response  
Parallelable for Higher Output Current  
Output Voltage Tracking  
Internal Temperature Sensing Diode Output  
External Frequency Synchronization  
Overvoltage, Current and Temperature Protection  
9mm × 15mm × 5.01mm BGA Package  
LTM4644  
LTM4644-1  
Top Feedback Resistor  
from V -to-V  
Integrated  
60.4k 0.5ꢀ  
External (to be added on  
PCB)  
OUT  
FB  
(one resistor per channel) Resistor  
Application  
General  
Applications  
To Interface with  
PMBus power system  
management supervisory  
ICs such as the LTC2975  
APPLICATIONS  
n
Multirail Point of Load Regulation  
FPGAs, DSPs and ASICs Applications  
Configurable Output Array*  
n
4A  
4A  
8A  
All registered trademarks and trademarks are the property of their respective owners.  
12A  
16A  
4A  
4A  
4A  
4A  
4A  
* Note 4  
Click to view associated TechClip Videos.  
TYPICAL APPLICATION  
4V to 14V Input, Quad 0.9V, 1V, 1.2V and 1.5V Output DC/DC µModule Regulator*  
1.5V Output Efficiency and  
Power Loss (Each Channel)  
ꢑꢏꢒꢆꢇ  
ꢑꢏꢒꢖꢊꢀ  
ꢗꢍ  
ꢗꢌ  
ꢖꢍ  
ꢖꢌ  
ꢕꢍ  
ꢕꢌ  
6ꢍ  
6ꢌ  
ꢍꢍ  
ꢛ
ꢅ
ꢅ
4ꢅ ꢞꢟ ꢃ4ꢅ  
ꢃꢛꢜꢅꢝ4ꢁ  
ꢆꢇꢃ  
ꢖꢊꢀꢃ  
ꢔꢙꢃ  
ꢋꢋꢓꢔ  
ꢕꢋ  
ꢃ6ꢅ  
ꢈꢅꢆꢇꢃ  
ꢉꢊꢇꢃ  
4ꢚꢓꢔ  
4ꢅ  
ꢘꢍꢖꢖꢎꢃ  
4ꢂꢛꢋꢠ  
6ꢂꢛ4ꢠ  
ꢏꢀꢐ4644  
ꢘꢚꢍ  
ꢘ
ꢅ
ꢆꢇꢋ  
ꢅ
ꢃꢛꢋꢅꢝ4ꢁ  
ꢖꢊꢀꢋ  
ꢈꢅꢆꢇꢋ  
ꢉꢊꢇꢋ  
ꢔꢙꢋ  
4ꢚꢓꢔ  
4ꢅ  
ꢘꢍꢖꢖꢎꢋ  
ꢅ
ꢆꢇꢌ  
ꢅ
ꢃꢅꢝ4ꢁ  
ꢖꢊꢀꢌ  
ꢈꢅꢆꢇꢌ  
ꢉꢊꢇꢌ  
ꢔꢙꢌ  
4ꢚꢓꢔ  
4ꢅ  
ꢌꢚꢍ  
ꢌ
ꢘꢍꢖꢖꢎꢌ  
ꢡꢂꢛꢡꢠ  
ꢃꢋꢃꢠ  
ꢝ
ꢝ
ꢞ ꢍꢝ  
ꢏꢈ  
ꢏꢈ  
ꢅ
ꢆꢇ4  
ꢅ
ꢂꢛꢡꢅꢝ4ꢁ  
ꢞ ꢘꢛꢝ  
ꢖꢊꢀ4  
ꢈꢅꢆꢇ4  
ꢉꢊꢇ4  
ꢔꢙ4  
4ꢚꢓꢔ  
4ꢅ  
ꢌ
ꢘ
ꢛ
ꢜ
4
ꢘꢍꢖꢖꢎ4  
ꢀꢁꢂꢃ ꢄꢅꢆꢆꢇꢈꢉ ꢊꢂꢋ  
ꢀꢗꢐꢘ ꢈꢍꢇꢎ ꢍꢇꢎ  
4644 ꢉꢂꢌꢘꢙ  
4644 ꢀꢁꢂꢃꢄ  
ꢢꢀ ꢣ 6ꢂꢤꢑꢥ ꢋꢂꢂꢏꢔꢐꢥ ꢇꢖ ꢦꢗꢁꢀ ꢈꢆꢇꢒ  
ꢁ
4644fe  
1
For more information www.linear.com/LTM4644  
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