ev3414a-j-00a 3a, 1mhz synchronous step-up converter with output disconnect evaluation board ev3414a-j-00a rev.1.1 www.monolithicpower.com 1 6/16/2017 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2017 mps. all rights reserved. the future of analog ic technology description ev3414a-j-00a evaluation board is designed to demonstrate the capability of mp3414a. the mp3414a is a high-efficiency, synchronous, current-mode, step-up converter with output disconnect. the mp3414a provides inrush current limiting and output short-circuit protection. the integrated, p-channel, synchronous rectifier improves efficiency and eliminates the need for an external schottky diode. the pmos disconnects the output from the input when the part shuts down. the 1mhz switching frequency allows for small external components, while the internal compensation and the soft-start minimize the external component count. the mp3414a is available in a small 8-pin tsot23 package. electrical specification parameter symbol value units input voltage v in 2.5-4.7 (1) v output voltage v out 5 v output current i out 1 a note: 1) this board can supply 5v/1a load from 2.5v-4.7v input power, it can work with lower than 2.5v input but the load capability is lower than 1a. features ? 2.5v to 4.7v input voltage range ? program up to 5.5v output voltage ? internal synchronous rectifier ? 1mhz fixed frequency switching ? 22 a quiescent current ? <1 a shutdown current ? truly output disconnect from input ? up to 97% efficiency ? high efficiency over full load range ? internal compensation, inrush current limiting and internal soft-start ? tiny external components ? ovp, scp and otp protection ? tsot23-8 package applications ? two-cell and three-cell alkaline, nicd or nimh or single-cell li battery consumer products ? personal medical devices ? portable media players ? wireless peripherals ? handheld computers and smart phones all mps parts are lead-free, halogen free, and adhere to the rohs directive. for mps green status, please visit mps website under qualit y a ssurance. ?mps? and ?the future of analog ic technology? are registered trademarks of monolithic power systems, inc. ev3414a-j-00a evaluation board (l x w x h) 6.35cm x 6.35cm x 0.6cm board number mps ic number ev3414a-j-00a MP3414AGJ
ev3414a-j-00a?3a, 1mhz step-up converter with output disconnect ev board ev3414a-j-00a rev.1.1 www.monolithicpower.com 2 6/16/2017 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2017 mps. all rights reserved. evaluation board schematic ev3414a-j-00a bill of materials qty ref value description package manufacturer part number 1 c1 10uf ceramic cap.,10v,x7r 1210 murata grm32er71a106ka01l 1 c2a 22uf ceramic cap.,10v,x7r 1210 murata grm32er71a226ke20l 1 c2b 1uf ceramic cap.,10v,x7r 0603 murata grm188r71a105ka61d 1 c3 nc 1 r1 1m film res.,1% 0603 royal rc0603fr-071ml 1 r2 137k film res.,1% 0603 royal rc0603fr-07137kl 1 r3 100k film res.,5% 0603 royal rc0603jr-07100kl 1 r4 nc 1 l1 1.5uh ir=11a,isat=14a, dcr=6.6m ? smd wurth 744 311 150
ev3414a-j-00a?3a, 1mhz step-up converter with output disconnect ev board ev3414a-j-00a rev.1.1 www.monolithicpower.com 3 6/16/2017 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2017 mps. all rights reserved. evb test results v in = 3.3v, v out = 5v, l = 1.5h, t a = 25oc, unless otherwise noted.
ev3414a-j-00a?3a, 1mhz step-up converter with output disconnect ev board ev3414a-j-00a rev.1.1 www.monolithicpower.com 4 6/16/2017 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2017 mps. all rights reserved. evb test results (continued) v in = 3.3v, v out = 5v, l = 1.5h, t a = 25oc, unless otherwise noted.
ev3414a-j-00a?3a, 1mhz step-up converter with output disconnect ev board ev3414a-j-00a rev.1.1 www.monolithicpower.com 5 6/16/2017 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2017 mps. all rights reserved. evb test results (continued) v in = 3.3v, v out = 5v, l = 1.5h, t a = 25oc, unless otherwise noted.
ev3414a-j-00a?3a, 1mhz step-up converter with output disconnect ev board ev3414a-j-00a rev.1.1 www.monolithicpower.com 6 6/16/2017 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2017 mps. all rights reserved. printed circuit board layout figure 1?top silk layer figure 2?top layer figure 3?bottom layer
ev3414a-j-00a?3a, 1mhz step-up converter with output disconnect ev board notice: the information in this document is subject to change wi thout notice. please contact m ps for current specifications. users should warrant and guarantee that third party intellectual property rights ar e not infringed upon when integrating mps products into any application. mps will not assume any legal responsibility for any said applications. ev3414a-j-00a rev.1.1 www.monolithicpower.com 7 6/16/2017 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2017 mps. all rights reserved. quick start guide the output voltage of this board is set to 5v. the board layout accommodates most commonly used components. 1. preset power supply to 2.5v v in 4.7v. 2. turn power supply off. 3. connect power supply terminals to: a. positive (+): vin b. negative (?): gnd 4. connect load to: a. positive (+): vout b. negative (?): gnd 5. turn power supply on after making connections. 6. the mp3414a is enabled on the evaluation board once vin is applied. 7. the output voltage vout can be changed by varying r2. calculate the new value using the formula: out fb r1 vv(1) r2 ??? where v fb = 0.6v and r1=1m ? . 8. to use the enable function, apply a digital input to the en pin. drive en higher than 1.2v to turn on ev3414a-j-00a or less than 0.4v to turn it off.
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