DataSheeT enpirion power solutions EN5335QI 3A PowerSoC Step-Down DC-DC Switching Converter with Integrated Inductor DESCRIPTION FEATURES The EN5335QI is an Intel Enpirion Power System on Integrated INDUCTOR, MOSFETS, Controller a Chip (PowerSoC) DC-DC converter. It is specifically Footprint 1/3rd that of competing solutions designed to meet the precise voltage and fast Low Part Count: only 3 MLC Capacitors transient requirements of present and future high- Up to 10W continuous output power performance, low-power processor, DSP, FPGA, memory boards and system level applications in a 5MHz operating frequency distributed power architecture. High efficiency, up to 93% VOUT accuracy 3% over line, load and temp Advanced circuit techniques, ultra high switching frequency, and very advanced, high-density, Wide input voltage range of 2.375V to 6.6V integrated circuit and proprietary inductor 3-pin VID output voltage select to choose one of technology deliver high-quality, ultra compact, non- 7 pre-programmed voltage levels isolated DC-DC conversion. Operating this converter Output enable pin and Power OK signal requires as few as three external components that Programmable soft-start time include small value input and output ceramic capacitors and a soft-start capacitor. Programmable over-current protection Thermal shutdown, short circuit, and UVLO The Intel Enpirion solution significantly helps in Output over-voltage protection system design and productivity by offering greatly simplified board design, layout and manufacturing RoHS compliant, MSL level 3, 260C reflow requirements. In addition, a reduction in the number of vendors required for the complete power solution helps to enable an overall system cost savings. APPLICATIONS All Intel Enpirion products are RoHS compliant and Point of load regulation for low-power processors, lead-free manufacturing environment compatible. network processors, DSPs, FPGAs, and ASICs Notebook computers, servers, workstations Broadband, networking, LAN/WAN, optical V PVIN VS0 IN VID Output VS1 Low voltage, distributed power architectures with AVIN Voltage Select 22F VS2 2.5V, 3.3V or 5V rails POK VSENSE DSL, STB, DVR, DTV, iPC SS VOUT V OUT Ripple sensitive application 15nF 47F AGND PGND Figure 1: Simplified Applications Circuit Page 1 Datasheet Intel Enpirion Power Solutions: EN5335QI ORDERING INFORMATION Part Number Package Markings T Rating Package Description J EN5335QI EN5335QI -40C to +125C 44-pin (7.5mm x 10mm x 1.85mm) QFN EN5335QI-E EN5335QI QFN Evaluation Board Packing and Marking Information: