Enpirion Power Datasheet EC2630QI 4.5A, 27W 12V DC-DC Intermediate Voltage Bus Converter Description Features The EC2630QI is a high density, high efficiency Complete power conditioning solution from a DC-DC intermediate voltage bus converter which 12V power bus generates an output voltage that tracks one half the 5.5mm x 5.5mm x 3mm QFN Package 2 input voltages and is designed to provide power to Total solution size of 228mm Alteras highly integrated Enpirion DC-DC point-of- Input voltage range of 10V to 13.2V load converter products for a complete 12V The output voltage is one half of the input solution. EC2630QI provides the means to voltage condition power from a 12V input, to supply multiple High and flat efficiency, up to 97.5% lower voltage converters while enabling high 4.5A Continuous Output Current Capability efficiency and small PCB area. Due to its extremely Master/Slave Mode for Parallel Operation high efficiency, it avoids the common two stage VIN OK pin power conversion penalty and is equivalent to or Thermal shutdown, short circuit, and UVLO better than direct regulation. protection RoHS compliant, MSL level 3, 260C reflow This Altera Enpirion solution significantly helps in system design and productivity by offering greatly simplified board design, layout and manufacturing. Applications In addition, a reduction in the number of vendors Applications requiring down conversion from a required for the complete power solution helps to 12V bus to an output voltage with high enable an overall system cost savings. All of efficiency. Alteras Enpirion products are RoHS compliant. Systems requiring multiple voltage rails such as FPGA and ASIC. Enterprise, Industrial, Embedded, and Telecommunication applications. Multi-rail computer & network interface applications such as PCIe and ATCA AMC cards. Efficiency vs. Output Current 98 EC2630QI V OUT V IN 96 VOUT PVIN 30.1 CFLYP 94 0402 22F 3x AVIN 22F Cfly 92 1206 Cou t 1206 CFLYN PGND 90 CONDITION 0. 1F VBOOT V 3P 3 C =3x22uF (16V, 1206), IN VIN = 10V 88 PGND C =C =3X47uF (10V, 1206) OUT FLY AGND FADJ R = 100K 0. 1F VIN = 11V FADJ 86 100k VIN = 12V 0402 84 VIN = 13.2V 82 Figure 1. Typical Application Schematic Optimized for Maximum Efficiency OUTPUT CURRENT (A) Figure 2. Highest Efficiency in Smallest Solution Size 1 www.altera.com/enpirion EFFICIENCY (%) 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 EC2630QI Ordering Information Part Number Package Markings T Rating (C) Package Description AMBIENT EC2630QI EC2630QI -40 to +85 36 pin (5.5mm x 5.5mm x 3mm) QFN Package EVB-EC2630QI EC2630QI QFN Evaluation Board Packing and Marking Information: www.altera.com/support/reliability/packing/rel-packing-and-marking.html Pin Assignments (Top View) 37 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. Failure to follow this guideline may result in damage to the device. NOTE B: The white dot on the top left of the device package is the pin-1 indicator. 2 www.altera.com/enpirion