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EV1340QI

更新时间： 2022-02-26 13:21:14
品牌 Logo 应用领域
ENPIRION 双倍数据速率
页数 文件大小 规格书
20页 978K
描述
5A Synchronous Highly Integrated DC-DC DDR2/3/QDRTM Memory Termination and Low VIN Power SoC

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EV1340QI  
5A Synchronous Highly Integrated DC-DC  
DDR2/3/QDRTM Memory Termination and Low VIN  
Power SoC  
Description  
Features  
• High Efficiency, Up to 91%  
The EV1340 is a Power System on a Chip  
(PowerSoC) DC to DC converter in a 54 pin QFN  
that is optimized for DDR2, DDR3, and QDRTM  
VTT applications. It requires a nominal 3.3V  
power supply (AVIN) for the controller, and an  
input supply (VDDQ) voltage range of 1.0V to  
1.8V. It provides a tightly regulated and very  
stable output voltage (VTT) which tracks VDDQ  
while sinking and sourcing up to 5A of output  
current. In addition, the EV1340 is an excellent  
solution for general low VIN applications where  
high efficiency is critical.  
• Output Voltage Can Track VDDQ to within  
+/- 1.5%  
• Source and Sink Capability up to 5A  
• 125mm2 Total Solution Size  
• VDDQ Range (1.0V to 1.8V )  
• Monotonic Startup With Pre-bias  
• Programmable Soft-Start Time  
• Thermal Shutdown Protection  
• Over Current and Short Circuit Protection  
• Under-Voltage Protection  
The  
EV1340  
utilizes  
innovative  
circuit  
• RoHS Compliant, MSL level 3, 260°C reflow  
techniques, high-density circuit integrations and  
optimized switching frequency along with  
Enpirion’s proprietary inductor technology to  
deliver high-quality, ultra compact, non-isolated  
DC-DC conversion.  
Applications  
• Bus Termination: DDR2, DDR3, & QDR™  
Memory  
The complete power converter solution enhances  
productivity by offering greatly simplified board  
design, layout and manufacturing requirements.  
• General Low VIN Applications  
0402  
0402  
0402  
0402  
0402  
0402  
0402  
100µF  
1206  
Figure 2: Typical VTT Application Schematic (VDDQ is  
the memory core voltage; VTT is memory  
termination voltage that tracks VDDQ  
)
Figure 1: EV1340 Total Solution Size ~ 125mm2  
(not to scale)  
www.enpirion.com  
06218  
10/19/2011  
Rev: A  
1234567...20

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