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ISL8240M PDF预览

ISL8240M

更新时间： 2024-11-05 01:08:23
品牌 Logo 应用领域
瑞萨 - RENESAS /
页数 文件大小 规格书
31页 1732K
描述
Dual 20A/Single 40A Step-Down Power Module

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中文翻译

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ISL8240M 数据手册

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DATASHEET  
ISL8240M  
Dual 20A/Single 40A Step-Down Power Module  
FN8450  
Rev 2.00  
January 7, 2015  
The ISL8240M is a fully-encapsulated step-down switching  
power supply that can deliver up to 100W output power from a  
small 17mmx17mm PCB footprint. The two 20A outputs may  
be used independently or combined to deliver a single output  
of 40A. Designing a high-performance board-mounted power  
supply has never been simpler -- only a few external  
components are needed to create a very dense and reliable  
power solution.  
Features  
• Fully-encapsulated dual step-down switching power supply  
• Up to 100W output from a 17mmx17mm PCB footprint  
• Dual 20A or single 40A output  
• Up to 94% conversion efficiency  
• 4.5V to 20V input voltage range  
1.5% output voltage accuracy, differential remote voltage  
sensing and fast transient response create a very  
high-performance power system. Built-in output overvoltage,  
overcurrent and over-temperature protection enhance system  
reliability.  
• 0.6V to 2.5V output voltage range  
• 1.5% output voltage accuracy with differential remote  
sensing  
• Output overvoltage, overcurrent and over-temperature  
protection  
The ISL8240M is available in a thermally-enhanced QFN  
package. Excellent efficiency and low thermal resistance  
permit full power operation without heat sinks or fans. In  
addition, the QFN package with external leads permits easy  
probing and visual solder inspection.  
• QFN package with exposed leads permits easy probing and  
visual solder inspection  
Applications  
• Computing, networking and telecom infrastructure  
Related Literature  
AN1922, “ISL8240MEVAL4Z Dual 20A/Optional 40A  
Cascadable Evaluation Board Setup Procedure”  
equipment  
• Industrial and medical equipment  
AN1923, “ISL8240MEVAL3Z 40A, Single Output Evaluation  
Board Setup Procedure”  
• General purpose point-of-load (POL) power  
4.5V TO 20V  
5x22µF  
1.0VAT 40A  
V
V
VIN1  
VIN2  
VOUT1  
VOUT2  
IN  
OUT  
1kΩ  
7.5mm  
VSEN1+  
R
SET  
1.5kΩ  
EN/FF1  
EN/FF2  
VSEN2-  
9x100µF  
OFF  
ON  
VSEN1-  
VMON1  
ISL8240M  
VMON2  
COMP1  
COMP2  
VCC  
SYNC  
4.7µF  
R
SYNC  
237kΩ  
470pF  
NOTE: All pins not shown are floating  
FIGURE 1. COMPLETE 40A STEP-DOWN POWER SUPPLY  
FIGURE 2. SMALL FOOTPRINT WITH HIGH POWER DENSITY  
FN8450 Rev 2.00  
January 7, 2015  
Page 1 of 31  
1234567...31

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