ev3415-g-00a 3.6a, 1mhz synchronous step-up converter with output disconnect evaluation board ev3415-g-00a rev.1.0 www.monolithicpower.com 1 12/11/2015 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2015 mps. all rights reserved. the future of analog ic technology description ev3415-g-00a evaluation board is designed to demonstrate the capability of mp3415. the mp3415 is a high-efficiency, synchronous, current-mode, step-up converter with output disconnect. the mp3415 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 mp3415 is available in a small 12-pin qfn 2mm x 2mm package. electrical specification parameter symbol value units input voltage v in 1.8-4.5 (1) v output voltage v out 5 v output current iout 1.5 a note: 1) this board can supply 5v/1.5 a load from 2.8v-4.5v input power, it can work with lower than 2.8v input, but the load capability is lower than 1.5a. features ? 1.8v to 4.5v board input ? program up to 5.5v output voltage ? internal synchronous rectifier ? 1mhz fixed frequency switching ? 22 a quiescent current ? <1 a shutdown current ? true 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 ? small 2x2mm qfn12 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. fo r mps green status, please visit mps website under quality assurance. ?mps? and ?the future of analog ic technology? are registered trademarks of monolithic power systems, inc. ev3415-g-00a evaluation board tbd (l x w x h) 6.35cm x 6.35cm x 0.6cm board number mps ic number ev3415-g-00a MP3415GG
ev3415-g-00a?3.6a. 1mhz setp-up converte r with output disconnect ev board ev3415-g-00a rev.1.0 www.monolithicpower.com 2 12/11/2015 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2015 mps. all rights reserved. evaluation board schematic agnd pgnd sw t-ev3415-g-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 1nf ceramic cap.,50v,x7r 0603 murata grm188r71h102ka01d 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 1 ? film res.,1% 0603 royal rc0603fr-071rl 1 l1 1.5uh ir=11a,isat=14a, dcr=6.6m ? smd wurth 744 311 150 1 u1 3.6a, 1mhz synchronous step-up converter qfn 2mm*2mm mps MP3415GG
ev3415-g-00a?3.6a. 1mhz setp-up converte r with output disconnect ev board ev3415-g-00a rev.1.0 www.monolithicpower.com 3 12/11/2015 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2015 mps. all rights reserved. evb test results v in = 3.3v, v out = 5v, l = 1.5h, t a = 25oc, unless otherwise noted. efficiency vs. load current load current(a) load regulation load current(a) line regulation input voltage (v) case temperature rise vs. load current phase margin (deg) gain(db) frequency(khz) bode plot v in =3.3v, v out =5v, i out =1.5a -60 -40 -20 0 20 40 60 1 10 100 1000 -180 -120 -60 0 60 120 180 load current(a) 70 75 80 85 90 95 100 0 0.3 0.6 0.9 1.2 1.5 v in =2.8v -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 0 0.25 0.5 0.75 1 1.25 1.5 1.75 v in =4.2v v in =2.8v v in =3.3v -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 1.5 2.5 3.5 4.5 5.5 i out =0a i out =0.75a i out =1.5a phase gain 0 10 20 30 40 50 0 0.5 1 1.5 2 2.5 v in =3v v in =3.3v v in =4.2v v in =3.3v v in =4.2v .
ev3415-g-00a?3.6a. 1mhz setp-up converte r with output disconnect ev board ev3415-g-00a rev.1.0 www.monolithicpower.com 4 12/11/2015 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2015 mps. all rights reserved. evb test results (continued) v in = 3.3v, v out = 5v, l = 1.5h, t a = 25oc, unless otherwise noted.
ev3415-g-00a?3.6a. 1mhz setp-up converte r with output disconnect ev board ev3415-g-00a rev.1.0 www.monolithicpower.com 5 12/11/2015 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2015 mps. all rights reserved. evb test results (continued) v in = 3.3v, v out = 5v, l = 1.5h, t a = 25oc, unless otherwise noted. scp entry i out = 0a to short scp recovery i out = short to 0a v sw 5v/div. v out 2v/div. v en 2v/div. i l 1a/div. v sw 5v/div. v in 2v/div. v out 2v/div. v out /ac 500mv/div. i l 1a/div. v sw 5v/div. v in 2v/div. v out 2v/div. i l 1a/div. i l 1a/div. v sw 5v/div. v out 2v/div. v in 2v/div. i l 1a/div. v sw 5v/div. v out 2v/div. v in 2v/div. i out 500ma/div. v out /ac 500mv/div. i out 500ma/div.
ev3415-g-00a?3.6a. 1mhz setp-up converte r with output disconnect ev board ev3415-g-00a rev.1.0 www.monolithicpower.com 6 12/11/2015 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2015 mps. all rights reserved. printed circuit board layout figure 1?top silk layer figure 2?top layer figure 3?bottom layer
ev3415-g-00a?3.6a. 1mhz setp-up converte r 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. ev3415-g-00a rev.1.0 www.monolithicpower.com 7 12/11/2015 mps proprietary information. unaut horized photocopy and duplication prohibited. ? 2015 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 1.8v v in 4.5v. 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 mp3415 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 ev3415-g-00a or less than 0.4v to turn it off.
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