ev28163-q-00a high efficiency single inductor buck-boost dc-dc converter evaluation board ev28163-q-00a rev.1.0 www.monolithicpower.com 1 1/26/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. the future of analog ic technology description the ev28163-q-00a evaluation board is designed to demonstrate the capabilities of mps? mp28163. the mp28163 is a highly efficient, low quiescent current buck-boost converter, which operates from input voltage above, below and equal to the output voltage. the device provides power solution for products powered by a one-cell lithium-ion or multi-cell alkaline battery applications where the output voltage is within battery voltage rang. the mp28163 operates with input voltage from 2v to 5.5v to provide adjustable output voltage (1.5v to 5v), and is available in qfn10-3x3mm package. electrical specification parameter symbol value units supply voltage v in 2 ? 5.5 v output voltage v out 3.3 v output current i out 0 ? ocp a features ? high efficiency up to 95%. ? load disconnect during shutdown ? input voltage range: 2v to 5.5v ? adjustable output voltage from 1.5v to 5v ? 1mhz switching frequency ? pulse skipping mode at light load ? typical 80ua quiescent current ? internal loop compensation for fast response ? internal soft start ? otp, hiccup scp ? available in small qfn10-3x3 package applications ? battery-powered products ? portable instruments ? tablet pcs ? pos systems all 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. ev28163-q-00a evaluation board (l w h) 5.08cm 5.08cm 1.3cm board number mps ic number ev28163-q-00a MP28163GQ
ev28163-q-00a D high efficiency si ngle inductor buck-boost dc-dc converter evb ev28163-q-00a rev.1.0 www.monolithicpower.com 2 1/26/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. evaluation board schematic mp28163 sw1 4 sw2 2 vin 5 vcc 8 vout 1 fb 10 mode/ sync 7 en 6 pg n d 3 agnd 9 u1 3. 3 u h l1 ns c1 10uf/6.3v c2 22uf 6.3v c3 22uf 6. 3 v c4 2 3 1 jp1 2 3 1 jp2 gnd gnd gnd 143k r2 820k r1 gnd gnd vin gnd vout gnd r3 750k c5 68pf ev28163-q-00a bill of materials qty refdes value description manufacturer manufacturer p/n package 1 c1 ns 0805 1 c2 10uf 6.3v x7r ceramic capacitor murata grm21br60j106ke19d 0805 2 c3, c4 22uf 6.3v x5r ceramic capacitor murata grm21br60j226me39l 0805 1 c5 68pf 50v, x7r ceramic capacitor murata grm188r71h680kl 0603 2 jp1, jp2 3 pins header di 1 l1 3.3uh 9mohm, 8a inductor wurth 744314330 smd 1 r1 820k film resistor, 1% yageo rc0603fr-07820kl 0603 1 r2 143k film resistor, 1% yageo rc0603fr-07143kl 0603 1 r3 750k film resistor, 5% yageo rc0603jr-07750kl 0603 1 u1 mp28163 2~5.5v, 2.6a buck- boost converter mps MP28163GQ qfn10-3*3
ev28163-q-00a D high efficiency si ngle inductor buck-boost dc-dc converter evb ev28163-q-00a rev.1.0 www.monolithicpower.com 3 1/26/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. evb test results performance waveforms are tested on the evaluation board. v in = 3.3v, v out = 3.3v, l = 3.3h, c out =2x22uf, t a = 25c, unless otherwise noted.
ev28163-q-00a D high efficiency si ngle inductor buck-boost dc-dc converter evb ev28163-q-00a rev.1.0 www.monolithicpower.com 4 1/26/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. evb test results (continued) performance waveforms are tested on the evaluation board. v in = 3.3v, v out = 3.3v, l = 3.3h, c out =2x22uf, t a = 25c, unless otherwise noted.
ev28163-q-00a D high efficiency si ngle inductor buck-boost dc-dc converter evb ev28163-q-00a rev.1.0 www.monolithicpower.com 5 1/26/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. evb test results (continued) performance waveforms are tested on the evaluation board. v in = 3.3v, v out = 3.3v, l = 3.3h, c out =2x22uf, t a = 25c, unless otherwise noted.
ev28163-q-00a D high efficiency si ngle inductor buck-boost dc-dc converter evb ev28163-q-00a rev.1.0 www.monolithicpower.com 6 1/26/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. evb test results (continued) performance waveforms are tested on the evaluation board. v in = 3.3v, v out = 3.3v, l = 3.3h, c out =2x22uf, t a = 25c, unless otherwise noted. scp entry v in =2.4v, i out =0.5a, mode=high scp recovery v in =2.4v, i out =0.5a, mode=high v out 2v/div. v sw1 2v/div. v sw2 2v/div. i l 1a/div. v out 2v/div. v sw1 2v/div. v sw2 2v/div. i l 1a/div. i load 200ma/div. v out /ac 100mv/div. i load 500ma/div. v out /ac 100mv/div. i load 500ma/div. v out /ac 100mv/div. scp entry v in =4.2v, i out =0.5a, mode=high scp recovery v in =4.2v, i out =0.5a, mode=high v out 2v/div. v sw1 5v/div. v sw2 2v/div. i l 1a/div. v out 2v/div. v sw1 5v/div. v sw2 2v/div. i l 1a/div.
ev28163-q-00a D high efficiency si ngle inductor buck-boost dc-dc converter evb ev28163-q-00a rev.1.0 www.monolithicpower.com 7 1/26/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. printed circuit board layout figure 1: top silkscreen layer figure 2: top layer figure 3: bottom silkscreen layer
ev28163-q-00a D high efficiency si ngle inductor buck-boost dc-dc converter evb 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. ev28163-q-00a rev.1.0 www.monolithicpower.com 8 1/26/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. quick start guide 1. preset the load to some value, e.g. 0.5a, notice that the mp28163 may enter scp hiccup if starting up with a heavier load due to the secondary current limit which is for inrush protection.. 2. connect the positive and negative terminals of t he load to the vout and gnd pins, respectively. 3. preset the power supply output voltage (2~5.5v), and then turn off the power supply. 4. connect the positive and negative terminals of the power supply output to the vin and gnd pins, respectively. 5. turn on the power supply. the mp28163 demo board will automatically start up. 6. to use the enable function, remove the jumper jp1, apply a digital input to the en pin. drive en higher than 1.2v to turn on the regulator or less than 0.4v to turn it off. 7. to use mode pin for psm operation, please turn off vin then connect the jumper jp2 to gnd. 8. if other output voltage is preferred, the output voltage vout can be programmed by changing r1 and r2 according to below equation: fb out fb v r2 r1 vv = ? , where fb v . is typically 0.496v, and r1, r2?s units are in k , v out ?s unit is in v. the value of r2 is recommended to be from 100 k ? through 180 k ? . the recommended output voltage can be from 1.5v through 5v.
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