EV20046DQ-00A fast transient response, 2a linear regulator ev board EV20046DQ-00A rev. 1.0 www.monolithicpower.com 1 12/26/2013 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2013 mps. all rights reserved. the future of analog ic technology description the EV20046DQ-00A evaluation board demonstrates the performance of mp20046, a low noise, low dropout and high psrr linear regulator. it operates from a 2.7v to 5.5v input voltage and the output voltage is preset internally which ranges from 1.5v to 3.3v . the EV20046DQ-00A can supply up to 2a of load current, and features current limiting, over temperature protection and power-good status. an internal pmos pass element is used to allow a low 75 a ground current at full load, and drops down to 1 a when the device is disabled, making the mp20046 suitable for battery-power devices. electrical specifications parameter symbol value units input voltage v in 4.3 ? 5.5 v output voltage v out 3.3 v load current i out 2 a features ? up to 2a output current ? low 210mv dropout at 2a ? fast transient response ? 70db psrr at 100hz ? 17 v rms low noise output ? open drain power-good status output ? current limit and thermal protection applications ? telecom ? servers ? dsp, fpga supplies mps? and ?the future of analog ic technology? are registered trademarks of monolithic power systems, inc. EV20046DQ-00A evaluation board (l x w x h) 2.5? x 2.5? x 0.4? (6.35cm x 6.35cm x 1.1cm) board number mps ic number EV20046DQ-00A mp20046dq
EV20046DQ-00A ? fast transient re sponse, 2a linear regulator EV20046DQ-00A rev. 1.0 www.monolithicpower.com 2 12/26/2013 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2013 mps. all rights reserved. evaluation board schematic EV20046DQ-00A bill of materials qty ref value description package manufacturer part number 1 c1 10 f ceramic capacitor x5r, 16v 0805 kyocera cm21x5r106k16at 1 c2 47 f ceramic capacitor x5r, 10v 1210 murata grm32er61a476ke20l 1 cin ns 1 cout ns 1 c3 1nf ceramic capacitor x7r, 50v 0805 tdk c2012x7r1h102k 1 r1 100k film res, 5% 0603 any 1 u1 ldo regulator qfn10(3x3) mps mp20046dq
EV20046DQ-00A ? fast transient re sponse, 2a linear regulator EV20046DQ-00A rev. 1.0 www.monolithicpower.com 3 12/26/2013 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2013 mps. all rights reserved. printed circuit board layout figure 1?top layer figure 2?bottom layer figure 3?top silk layer
EV20046DQ-00A ? fast transient re sponse, 2a linear regulator notice: the information in this document is subject to change wi thout notice. users should warra nt and guarantee that third party intellectual property rights are not infringed upon w hen integrating mps products into any application. mps will not assume any legal responsibility for any said applications. EV20046DQ-00A rev. 1.0 www.monolithicpower.com 4 12/26/2013 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2013 mps. all rights reserved. quick start guide the output voltage of this board is set to 3.3v by operating from +4.3v to +5.5v input. the board layout accommodates most commonly used resistors and capacitors. 1. the /en pin is connected to gnd for automatic startup. you can connect /en to vin to disable the mp20046. do not float the /en pin. 2. attach the positive and negative ends of the load to the vout and gnd pins, respectively. 3. attach the input voltage (4.3v vin 5.5v) and input ground to the vin and gnd pins, respectively. to evaluate the other versions of mp20046dq with different output voltages, carefully remove the ic (u1) and replace it with the corresponding chip. please refer to the datasheet for the detailed information of different output voltage option of mp20046dq.
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