Enpirion Power Datasheet EN23F0QI 15A PowerSoC Voltage Mode Synchronous Buck With Integrated Inductor Not Recommended for New Designs Description Features The EN23F0QI is a Power System on a Chip Integrated Inductor, MOSFETs, Controller 2 (PowerSoC) DC-DC converter. It integrates MOSFET Total Solution Size Estimate 308mm switches, small-signal control circuits, compensation Wide Input Voltage Range: 4.5V 14V and an integrated inductor in an advanced 1% Initial Output Voltage Accuracy 12x13x3mm QFN module. It offers high efficiency, excellent line and load regulation. The EN23F0QI Master/Slave Configuration for Parallel Operation operates over a wide input voltage range and is Up to 4 Devices with 48A capability specifically designed to meet the precise voltage and Frequency Synchronization (External Clock) fast transient requirements of high-performance Output Enable Pin and Power OK Signal products. The EN23F0QI features frequency Programmable Soft-Start Time synchronization to an external clock, power OK output voltage monitor, programmable soft-start along Under Voltage Lockout Protection (UVLO) with thermal and short circuit protection. The devices Short Circuit Protection advanced circuit design, ultra high switching Thermal Shutdown Protection frequency and proprietary integrated inductor o RoHS compliant, MSL level 3, 260 C reflow technology delivers high-quality, ultra compact, non- isolated DC-DC conversion. Applications The Altera Enpirion solution significantly helps in Space Constrained Applications system design and productivity by offering greatly Distributed Power Architectures simplified board design, layout and manufacturing requirements. In addition, overall system level Output Voltage Ripple Sensitive Applications reliability is improved given the small number of Beat Frequency Sensitive Applications components required with the Altera Enpirion Servers, Embedded Computing Systems, solution. LAN/SAN Adapter Cards, RAID Storage Systems, All Altera Enpirion products are RoHS compliant and Industrial Automation, Test and Measurement, lead-free manufacturing environment compatible. and Telecommunications 0.1F 0.47F Efficiency vs. Output Current 100 V OUT PG BTMP VDDB BGND 90 V IN VOUT PVIN 80 EN23F0QI ON 70 4.75k ENABLE 3x OFF EAIN 3x R A 60 CA 47F 22F 1206 VOUT = 3.3V AVINO 50 1206 R EA AVIN VOUT = 2.5V R CA 40 1F 1F VFB SS VOUT = 1.8V CONDITIONS 30 47nF V = 12.0V M/S VOUT = 1.2V IN 20 CGND AVIN = 3.3V PGND VOUT = 1.0V PGND 10 Dual Supply R B FQADJ AGND RCLX 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 R 100k FS OUTPUT CURRENT (A) Figure 1. Simplified Applications Circuit Figure 2. Highest Efficiency in Smallest Solution Size (Footprint Optimized) 07512 June 2, 2015 Rev D EFFICIENCY (%) EN23F0QI Ordering Information Part Number Package Markings T Rating (C) Package Description AMBIENT EN23F0QI EN23F0QI -40 to +85 92-pin (12mm x 13mm x 3mm) QFN T&R EVB-EN23F0QI EN23F0QI QFN Evaluation Board Packing and Marking Information: www.altera.com/support/reliability/packing/rel-packing-and-marking.html Pin Assignments (Top View) NC 1 70 S OUT KEEP OUT NC 2 69 S IN NC 3 68 BGND 4 NC 67 VDDB NC 5 66 BTMP NC 6 65 PG NC 7 64 AVINO NC 8 63 PVIN NC 9 62 PVIN 10 NC 61 PVIN 93 11 NC 60 PVIN KEEP OUT PGND NC 12 59 PVIN NC 13 58 PVIN 14 NC 57 PVIN NC 15 56 PVIN 16 55 NC PVIN 17 54 NC PVIN NC 18 53 PVIN NC 19 52 PVIN 20 51 NC PVIN NC 21 50 PVIN NC 22 49 PVIN 23 48 NC PVIN NC 24 47 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. All pins including NC pins 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 16 for details. NOTE C: White dot on top left is pin 1 indicator on top of the device package. www.altera.com/enpirion Page 2 07512 June 2, 2015 Rev D 25 VOUT 92 NC(SW) VOUT 26 91 NC(SW) 27 90 VOUT NC(SW) 28 VOUT 89 NC(SW) 29 88 VOUT NC(SW) 87 30 NC(SW) VOUT 31 86 NC(SW) VOUT VOUT 32 85 NC(SW) 33 84 NC(SW) VOUT 34 83 NC(SW) VOUT 35 VOUT 82 CGND 36 81 NC NC 80 NC(SW) 37 FQADJ 38 79 NC(SW) RCLX 39 NC(SW) 78 SS 40 PGND 77 EAIN 41 PGND 76 VFB 42 75 PGND M/S 43 74 PGND AGND 44 73 AVIN PGND 45 72 PGND ENABLE 46 71 POK PGND KEEP OUT