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EN5310DI

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仕様・特性

EN5310 1A Voltage Mode Synchronous Buck PWM DC-DC Converter with Integrated Inductor ENPIRION RoHS Compliant Description Features The EN5310 is a Power System on a Chip DCDC converter. It is specifically designed to meet the precise voltage and fast transient requirements of present and future highperformance, low-power processor, DSP, FPGA, memory boards and system level applications in a distributed power architecture. Advanced circuit techniques, ultra high switching frequency, and very advanced, high-density, integrated circuit and proprietary inductor technology deliver highquality, ultra compact, non-isolated DC-DC conversion. Operating this converter requires only three external components that include small value input and output ceramic capacitors and a soft-start capacitor. • • • • • • • • • • • • The EN5310 significantly helps in system design and productivity by offering greatly simplified board design, layout and manufacturing requirements. In addition, a reduction in the number of vendors required for the complete power solution helps to enable an overall system cost savings. • • • • 1000mA output current capacity External inductor is NOT required RoHS compliant, MSL3 rated to 260°C 5MHz operating frequency More than 90% efficient VOUT accuracy of 2% over line, load and temperature 1/2 the board area of discrete component solutions Very fast transient response All high speed switching signals contained inside the part Wide input voltage range of 2.375V to 5.5V Digital voltage selector with options for common output voltages from 0.8V to 3.3V External divider option for programming output voltages from 0.9V to 4.0V Output enable pin and Power OK signal Programmable soft-start time Programmable over-current protection Thermal shutdown, short circuit, over-voltage and under-voltage protection Applications • • Typical Application Circuit • VIN PVIN 10µF VS0 AVIN VS1 VS2 POK SS VID Output Voltage Select • Ordering Information VSENSE VOUT VOUT Part Number EN5310DC EN5310DC-T EN5310DI EN5310DI-T EN5310DC-E 22µF 15nF AGND Rev 1.0 – January 2006 VOIP phones, video telephones Broadband, networking, LAN/WAN, optical telecommunications equipment Point of load regulation for low-power processors, network processors, DSPs, FPGAs, and ASICs Low voltage, distributed power architectures with 2.5V, 3.3V or 5V rails PGND 1 Temp Rating Package (°C) 0 to 70 36-pin DFN 0 to 70 36-pin DFN T&R -40 to +85 36-pin DFN -40 to +85 36-pin DFN T&R DFN Evaluation Board www.enpirion.com

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