EVM3620A-QV-00A 24v/2a module converter with integrated inductor evaluation board EVM3620A-QV-00A rev. 1.0 www.monolithicpower.com 1 9/25/2014 mps proprietary information. patent protected. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. the future of analog ic technology description the EVM3620A-QV-00A is an evaluation board for mpm3620a, a synchronous rectified, step- down module converter with built-in power mosfets, inductor and two capacitors. the evaluation board can deliver a 2a continuous output current with excellent load and line regulation over a wide input supply range. current-mode operation provides fast transient response and eases loop stabilization. full protection features include over-current protection and thermal shut down. the mpm3620a is available in a space-saving qfn20 (3mm x5mmx1.6mm) package. electrical specification (1) paramete r symbol v alue units input voltage v in 12 v output voltage v out 3.3 v output current i out 2 a notes: 1) for different input, output spec, please refer to application and typical application circuits section on datasheet to choose proper values. features ? 2a continuous load current ? 90m ? /40m ? low r ds(on) internal power mosfets ? integrated inductor ? integrated vcc and bootstrap capacitors ? power save mode at light load ? power good indicator ? ocp protection and hiccup ? thermal shutdown ? output adjustable from 0.8v ? available in qfn20 (3x5x1.6mm) package ? total solution size 6.7mm x7.3mm applications ? industrial controls ? medical and imaging equipment ? telecom and networking applications ? ldo replacement ? space and resource-limited applications a ll mps parts are lead-free and adhere to the rohs directive. for mps green status, please visit mps website under products, quality assurance page. ?mps? and ?the future of analog ic technology? are registered trademarks of monolithic power systems, inc. EVM3620A-QV-00A evaluation board (l x w x h) 6.35cm x 6.35cm x 0.32cm board number mps ic number EVM3620A-QV-00A mpm3620agqv
EVM3620A-QV-00A 24v/2a step-down module converter EVM3620A-QV-00A rev. 1.0 www.monolithicpower.com 2 9/25/2014 mps proprietary information. patent protected. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. evaluation board schematic EVM3620A-QV-00A bill of materials qty re f v alue description package manufacture r manufacturer p/n 1 c1 10 f ceramic cap,25v,x5r 0805 murata grm21br61e106ka73l 1 c2 22 f ceramic cap,16v,x5r 0805 murata grm219r61c226me15l 0 c3 ns 1 r1 75k thick film res., 1% 0402 any 1 r2 24k thick film res., 1% 0402 any 1 r3 100k thick film res., 1% 0402 any 1 r4 100k thick film res., 1% 0402 any 1 u1 mpm3620a synchronous step-down module converter qfn-20 mps mpm3620agqv
EVM3620A-QV-00A 24v/2a step-down module converter EVM3620A-QV-00A rev. 1.0 www.monolithicpower.com 3 9/25/2014 mps proprietary information. patent protected. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. evb test results performance waveforms are tested on the evaluation board. v in = 12v, v out = 3.3v, t a =25c, unless otherwise noted.
EVM3620A-QV-00A 24v/2a step-down module converter EVM3620A-QV-00A rev. 1.0 www.monolithicpower.com 4 9/25/2014 mps proprietary information. patent protected. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. evb test results (continued) performance waveforms are tested on the evaluation board. v in = 12v, v out = 3.3v, t a =25c, unless otherwise noted. v out /ac 100mv/div. v sw 10v/div. v out 2v/div. v pg 5v/div. v en 5v/div. i out 2a/div. i out 1a/div. load transient response 1a to 2a shutdown through enable i out = 2a v out 1v/div. v sw 10v/div. i out 5a/div. v out 2v/div. v sw 10v/div. i out 5a/div. v out 2v/div. v sw 10v/div. i out 5a/div. short circuit steady state short circuit entry i out =0a short circuit recovery i out =0a v sw 10v/div. v out 2v/div. v pg 5v/div. v en 5v/div. i out 2a/div. v sw 10v/div. v out 2v/div. v pg 5v/div. v en 5v/div. i out 2a/div. startup through enable i out = 2a shutdown through enable i out = 0a
EVM3620A-QV-00A 24v/2a step-down module converter EVM3620A-QV-00A rev. 1.0 www.monolithicpower.com 5 9/25/2014 mps proprietary information. patent protected. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. printed circuit board layout figure 1?top silk layer figure 2?top layer figure 3?bottom silk layer figure 4?bottom layer
EVM3620A-QV-00A 24v/2a step-down module converter notice: the information in this document is subject to change without notice. please contact mps for current specifications. users should warrant and guarantee that third party intellectual property rights are not infringed upon when integrating mps products into any application. mps will not assume any legal responsibility for any said applications. EVM3620A-QV-00A rev.1.0 www.monolithicpower.com 6 9/25/2014 mps proprietary information. patent protected. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. quick start guide 1. connect the positive and negative terminals of the load to the v out and gnd pins, respectively. 2. preset the power supply output between 4.5v and 24v, and then turn off the power supply. 3. connect the positive and negative terminals of the power supply output to the v in and gnd pins, respectively. 4. turn the power supply on. the board will automatically start up. 5. to use the enable function, apply a digital input to the en pin. drive en higher than 1.4v to turn on the converter, or less than 1.25v to turn it off.
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