Enpirion Power Datasheet EN5336QI 3A PowerSoC Voltage Mode Synchronous Buck With Integrated Inductor Output Voltage Programming Description Features The EN5336QI is a Power System on Silicon DC- Integrated INDUCTOR, MOSFETS, Controller rd DC converter. It is specifically designed to meet Footprint 1/3 that of competing solutions the precise voltage and fast transient Minimum external components requirements of present and future high- Up to 10W continuous output power performance, low-power processor, DSP, FPGA, 5MHz operating frequency memory boards and system level applications in High efficiency, up to 93% a distributed power architecture. Advanced circuit V accuracy 3% over line, load and temp OUT techniques, ultra high switching frequency, and Wide input voltage range of 2.375V to 6.6V very advanced, high-density, integrated circuit External resistor divider for voltage feedback and proprietary inductor technology deliver high- and output voltage selection quality, ultra compact, non-isolated DC-DC Output enable pin and Power OK signal conversion. Operating this converter requires Programmable soft-start time only small value input and output ceramic Programmable over-current protection capacitors, a soft-start capacitor and a resistor Thermal shutdown, short circuit, and UVLO divider for voltage feedback to set the output Output over-voltage protection voltage to the desired value. RoHS compliant, MSL level 3, 260C reflow. Alteras Enpirion solution significantly helps in system design and productivity by offering greatly simplified board design, layout and Applications manufacturing requirements. In addition, a reduction in the number of vendors required for Point of load regulation for low-power the complete power solution helps to enable an processors, network processors, DSPs, overall system cost savings. FPGAs, and ASICs Notebook computers, servers, workstations Alteras Enpirion products are RoHS compliant Broadband, networking, LAN/WAN, optical and lead-free manufacturing environment Low voltage, distributed power architectures compatible. with 2.5V, 3.3V or 5V rails DSL, STB, DVR, DTV, iPC Typical Application Circuit Ripple sensitive applications POK V OUT V VOUT PVIN IN AVIN Ordering Information 22F XOV 47F SS XFB Temp Rating AGND PGND Part Number (C) Package 15 nF EN5336QI -40 to +85 44-pin QFN T&R EN5336QI-E QFN Evaluation Board Figure 1. Simple Layout. 1 www.altera.com/enpirion EN5336QI Pin Configuration Below is a top view diagram of the EN5336QI package. NOTE: NC pins are not to be electrically connected to each other or to any external signal, ground, or voltage. However, they must be soldered to the PCB. Failure to follow this guideline may result in part malfunction or damage. Figure 2. Pin-out diagram, top view. 2 www.altera.com/enpirion