Enpirion Power Datasheet EN5367QI 6A PowerSoC Highly Integrated Synchronous Buck With Integrated Inductor Description Features The EN5367QI is a Power System on a Chip High Efficiency (Up to 93%) (PowerSoC) DC to DC converter with an integrated Excellent Ripple and EMI Performance inductor, PWM controller, MOSFETs and Up to 6A Continuous Operating Current compensation to provide the smallest solution size in Input Voltage Range (2.5V to 5.5V) a 5.5x10x3mm 54-pin QFN module. It offers high efficiency, excellent line and load regulation over Frequency Synchronization (External Clock) temperature and up to the full 6A load range. The 3% V Accuracy (Over Line/Load/Temperature) OUT EN5367QI is specifically designed to meet the 2 Optimized Total Solution Size (160mm ) precise voltage and fast transient requirements of high-performance, low-power processor, DSP, FPGA, Programmable Soft-Start memory boards and system level applications in Output Enable Pin and Power OK distributed power architecture. The EN5367QI also Thermal Shutdown, Over-Current, Short Circuit, features switching frequency synchronization with an and Under-Voltage Lockout Protection (UVLO) external clock, programmable soft-start as well as RoHS Compliant, MSL Level 3, 260C Reflow thermal shutdown, over-current and short circuit protection. The devices advanced circuit techniques, Applications ultra high switching frequency, and proprietary integrated inductor technology deliver high-quality, Point of Load Regulation for Low-Power, ASICs ultra compact, non-isolated DC-DC conversion. Multi-Core and Communication Processors, DSPs, The Altera Enpirion integrated inductor solution FPGAs and Distributed Power Architectures significantly helps to reduce noise. The complete Blade Servers, RAID Storage and LAN/SAN power converter solution enhances productivity by Adapter Cards, Wireless Base Stations, Industrial offering greatly simplified board design, layout and Automation, Test and Measurement, Embedded manufacturing requirements. All Altera Enpirion Computing, and Printers products are RoHS compliant and lead-free Beat Frequency/Noise Sensitive Applications manufacturing environment compatible. 0.1F 0.1F Efficiency vs. Output Current 100 BTMP PG VDDB BGND V V 90 OUT IN PVIN VOUT 80 R A C 70 10 47F A EN5367QI 1206 60 Actual Solution Size 47F AVIN 2 CONDITIONS 50 160mm 1206 47nF ENABLE V = 5.0V VFB R CA IN 40 0805 0.1F 30 VOUT = 3.3V SS PGND 20 VOUT = 1.2V PGND R B 10 47nF AGND SYNC 0 0 1 2 3 4 5 6 OUTPUT CURRENT (A) Figure 1. Simplified Applications Circuit Figure 2. Highest Efficiency in Smallest Solution Size www.altera.com/enpirion 07013 October 11, 2013 Rev D EFFICIENCY (%)EN5367QI Ordering Information Part Number Package Markings Temp Rating (C) Package Description EN5367QI EN5367QI -40 to +85 54-pin (5.5mm x 10mm x 3mm) QFN T&R EN5367QI QFN Evaluation Board EVB-EN5367QI Packing and Marking Information: www.altera.com/support/reliability/packing/rel-packing-and-marking.html Pin Assignments (Top View) 1 36 NC SYNC KEEP OUT NC 2 35 BGND 3 34 NC VDDB 55 NC 33 4 BTMP PGND NC 5 KEEP OUT 32 PG 31 NC 6 PVIN NC 7 30 PVIN NC 8 29 PVIN 9 NC 28 PVIN Figure 3: Pin Out Diagram (Top View) NOTE A: 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. NOTE B: Shaded area highlights exposed metal below the package that is not to be mechanically or electrically connected to the PCB. Refer to Figure 9 for details. NOTE C: White dot on top left is pin 1 indicator on top of the device package. Pin Description PIN NAME FUNCTION 1-9, 18, NO CONNECT These pins may be internally connected. Do not connect them to each other 37, 40, or to any other electrical signal. Failure to follow this guideline may result in device damage. NC 42, 45, 48, 53-54 Regulated converter output. Connect these pins to the load and place output capacitor 10-17 VOUT between these pins and PGND pins 21-24. NO CONNECT These pins are internally connected to the common switching node of the 19-20, internal MOSFETs. They are not to be electrically connected to any external signal, ground, or NC(SW) 49-52 voltage. Failure to follow this guideline may result in damage to the device. Input/Output power ground. Connect these pins to the ground electrode of the input and 21-27 PGND output filter capacitors. See VOUT and PVIN pin descriptions for more details. Input power supply. Connect to input power supply. Decouple with input capacitor to PGND 28-31 PVIN pins 25-27. 32 PG High-side FET gate. This pin needs to be connected to BTMP using a 0.1F capacitor. 2 www.altera.com/enpirion 07013 October 11, 2013 Rev D VOUT 10 54 NC VOUT 11 53 NC VOUT 12 52 NC(SW) VOUT 13 51 NC(SW) 50 14 VOUT NC(SW) 49 15 NC(SW) VOUT 16 48 NC VOUT 17 47 AVIN VOUT 18 46 AGND NC 19 45 NC(SW) NC 20 44 NC(SW) VFB PGND 21 43 SS 22 42 PGND NC 41 23 EAOUT PGND 40 NC 24 PGND 25 PGND 39 POK PGND 26 38 ENABLE 27 KEEP OUT 37 NC PGND