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LTM4670 PDF预览

LTM4670

更新时间: 2023-12-20 18:44:26
品牌 Logo 应用领域
亚德诺 - ADI 稳压器
页数 文件大小 规格书
28页 2505K
描述
具有可配置10A输出阵列的低VIN、四通道μModule稳压器

LTM4670 数据手册

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LTM4670  
Low V , Quad µModule Regulator with  
IN  
Configurable 10A Output Array  
FEATURES  
DESCRIPTION  
The LTM®4670 is a quad DC/DC step-down µModule®  
(micromodule) regulator with 10A per output. Outputs can  
be paralleled in an array for up to 40A capability. Included in  
the package are the switching controller, power MOSFETs,  
inductor and all support components. Operating over an input  
voltage range of 2.25V to 5.5V, each output voltage ranges  
n
Quad Output Step-Down µModule Regulator  
with 10A per Output  
n
n
n
n
n
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Input Voltage Range: 2.25V to 5.5V  
Output Voltage Range: 0.5V to V  
IN  
10A DC Output Current Each Channel  
Ultra Low EMI Noise  
Parallelable for Up to 40A Output Current  
Selectable Pulse-Skipping Mode/Forced  
Continuous Mode  
from 0.5V to V set by only one external resistor. Its high  
IN  
efficiency design delivers 10A continuous output current per  
channel. Only a few input and output capacitors are needed.  
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Output Voltage Tracking  
The LTM4670 employs a Silent Switcher®2 architecture  
with internal hot loop bypass capacitors to achieve both  
low EMI and high efficiency. The default frequency is inter-  
nally set to 2MHz, it can be externally synchronized to a  
clock from 1MHz to 2.6MHz.  
Die Temperature Monitoring Output  
External Frequency Synchronization  
Power Good Indicator  
Overvoltage, Overcurrent and Overtemperature  
Protection  
7.5mm × 15mm × 4.65mm BGA Package  
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Fault protection features include overvoltage, overcurrent  
and overtemperature protection. The LTM4670 is Pb-free  
and RoHS compliant.  
APPLICATIONS  
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Configurable Output Array  
Telecom, Networking and Industrial Equipment  
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10A  
Multirail Point-of-Load Regulation  
20A  
10A  
10A  
10A  
30A  
10A  
n
FPGAs, DSPs and ASICs Applications  
40A  
10A  
10A  
All registered trademarks and trademarks are the property of their respective owners.  
TYPICAL APPLICATION  
Efficiency and  
Quad Output, 10A DC/DC μModule Regulator  
Power Loss at 1.5VOUT  
V
IN  
2.25V TO 5.5V  
ꢀꢁꢂꢃꢂꢄ  
ꢁꢂꢃ  
ꢀꢁꢁ  
ꢀꢁ  
ꢀꢁ  
ꢀꢁ  
ꢀꢁ  
ꢀꢁ  
ꢀꢁ  
ꢀꢁ  
ꢀꢁ  
ꢀꢁ  
ꢀ.ꢁ  
V
OUT  
22μF  
×4  
6.3V  
ꢁꢂꢃꢄ  
ꢃ ꢄ.ꢄꢀ  
Rꢀꢁꢂ  
ꢀRꢁꢂꢃ  
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢉ  
ꢁꢂ  
0.8V, 10A  
ꢀꢁꢂ  
100μF  
×2  
6.3V  
0.1μF  
0.1μF  
ꢀꢁꢁꢂꢃꢂꢀꢄꢃꢅ  
100k  
ꢀ.ꢁ  
ꢀ.ꢁ  
ꢀ.ꢁ  
ꢀ.ꢁ  
ꢀꢀꢁꢁꢂ  
ꢃ ꢄ.ꢄꢀ  
ꢁꢂ  
ꢁꢂꢃ  
ꢀꢁꢂꢃꢂꢄ  
Rꢀꢁꢂ  
ꢀRꢁꢂꢃ  
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢉ  
ꢁꢂꢃꢄ  
1V, 10A  
ꢀꢁꢂ  
100μF  
×2  
6.3V  
60.4k  
ꢀꢁꢂꢃR ꢄꢁꢅꢅ  
ꢀꢀꢁꢁꢂ  
ꢂꢃꢄꢅꢆ  
ꢃ ꢄ.ꢄꢀ  
ꢁꢂ  
ꢁꢂꢃ  
ꢀꢁꢂꢃꢂꢄ  
ꢃ ꢄ.ꢄꢀ  
ꢁꢂ  
Rꢀꢁꢂ  
ꢀRꢁꢂꢃ  
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢉ  
ꢁꢂꢃꢄ  
1.2V, 10A  
ꢀꢁꢂ  
100μF  
×2  
6.3V  
0.1μF  
0.1μF  
43.2k  
30.1k  
ꢄ ꢅ.ꢆꢀ  
ꢁꢂꢃ  
ꢀꢀꢁꢁꢂ  
ꢀꢁ  
PINS NOT USED  
ꢁꢂꢃ  
ꢀꢁꢂꢃꢂꢄ  
ꢀꢁAꢂ ꢃꢄRRꢅꢆꢇ ꢈAꢉ  
IN THIS CIRCUIT:  
PGOOD1,2,3,4  
SW1,2,3,4  
ꢀꢁꢂꢃ ꢄAꢃꢅꢆ  
Rꢀꢁꢂ  
ꢀRꢁꢂꢃ  
ꢀꢁꢂꢃꢄꢅꢆꢇꢈꢉ  
1.5V, 10A  
ꢁꢂꢃꢄ  
ꢀꢁꢂ  
100μF  
×2  
COMP1,2,3,4  
6.3V  
ꢀꢀꢁꢁꢂ  
ꢀꢁꢂꢃꢄꢅꢆꢅꢇꢅꢈ ꢀꢁꢂꢃꢄꢅꢄꢆꢄꢇ  
4670 TA01a  
Rev. A  
1
Document Feedback  
For more information www.analog.com  

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