DataSheeT enpirion power solutions EN5337QI 3A PowerSoC Step-Down DC-DC Switching Converter with Integrated Inductor DESCRIPTION FEATURES The EN5337QI is a Power Supply on a Chip Integrated INDUCTOR, MOSFETS, Controller 2 (PowerSoC) DC-DC converter. It integrates MOSFET Total Power Solution 75mm switches, all small-signal circuits, compensation, and Minimal external components. the inductor in an advanced 4mm x 7mm QFN 3A Continuous Output Current Capability package. 5MHz operating frequency. Switching frequency The EN5337QI is specifically designed to meet the can be phase locked to an external clock. precise voltage and fast transient requirements of High efficiency, up to 92%. present and future high-performance, low-power Wide input voltage range of 2.375V to 5.5V. processor, DSP, FPGA, memory boards, and system Output Enable pin and Power OK signal. level applications in distributed power architectures. Programmable soft-start time. Advanced circuit techniques, ultra high switching Under Voltage Lockout, Over Current, Short frequency, and very advanced, high-density, Circuit and Thermal Protection. integrated circuit and proprietary inductor technology deliver high-quality, ultra compact, non- RoHS compliant, MSL level 3, 260C reflow. isolated DC-DC conversion. APPLICATIONS Intel Enpirion solution significantly helps in system POL for low-power processors, network design and productivity by offering greatly simplified processors, DSPs, FPGAs, and ASICs board design, layout and manufacturing Noise sensitive applications such as A/V, RF and requirements. In addition, a reduction in the number Gbit I/O of vendors required for the complete power solution Low voltage, distributed power architectures. helps to enable an overall system cost savings. Computing, Networking, DSL, STB, DVR, DTV, iPC Intel Enpirion products are RoHS compliant and lead- Ripple sensitive applications free manufacturing environment compatible. Beat frequency sensitive applications Efficiency vs. Output Current V V 90 OUT IN PVIN VOUT 85 RA ENA 80 CA 22F AVIN XFB 75 1206 47F 70 1206 PGND PGND 65 SS RB AGND 60 VOUT= 2.5V 55 50 0 0.5 1 1.5 2 2.5 3 OUTPUT CURRENT (A) Figure 1. Typical Application Schematic Figure 2. Efficincy at V =5V IN Page 1 EN5337QI EFFICIENCY (%)Datasheet Intel Enpirion Power Solutions: EN5337QI ORDERING INFORMATION Part Number Package Markings T Rating Package Description J EN5337QI EN5337QI -40C to +125C 38-pin (4mm x 7mm x 1.85mm) QFN EN5337QI-E EN5337QI QFN Evaluation Board Packing and Marking Information: