$ features 600 khz operation 4.5-14 vdc input voltage range programmable output voltage from 0.591-6.0 vdc drives up to 200 f ceramic capacitive loads high power conversion ef? ciency at 93% outstanding thermal derating performance over temperature and over current protection on/off control sip, 0.41 x 0.65 x 0.4 inches (10.4 x 16.5 x 10.2 mm). meets ul/en/iec 60950-1 safety certi? cation rohs-6 hazardous substance compliance the okr-t/3 series are miniature sip non-isolated point-of-load (pol) dc/dc power converters measuring only 0.41 x 0.65 x 0.22 inches (10.4 x 16.5 x 5.6 mm). the wide input range is 4.5 to 14 volts dc. based on 600 khz synchronous buck topology, the high power conversion ef? cient point of load (pol) module features programmable output voltage and on/off control, under voltage lock out (uvlo), overcurrent and over temperature protections. these units meet all standard ul/en/ iec 60950-1 safety certi? cations and rohs-6 hazardous substance compliance. product overview figure 1. connection diagram typical unit external dc power source f1 on/off control common common open = on closed = off +vin +vout trim controller reference and error ampli?er t 4 x j u d i j o h t ' j m u f s t t $ v s s f o u 4 f o t f (positive on/off) ty t p i ca l un it contents of full data sheet page description, connection diagram, photograph 1 ordering guide, model numbering, product label 2 mechanical speci? cations, input/output pinout 3 detailed electrical speci? cations 4 trim connections, soldering guidelines 5 application notes 6 performance data 8 oscillograms 9 okr-t/3 series adjustable output 3-amp sip-mount dc/dc converters for full details go to www.murata-ps.com/rohs www.murata-ps.com www.murata-ps.com email: sales@murata-ps.com 30 oct 2009 mdc_okr-t/3-w12.a02_short page 1 of 3 this data sheet contains core information only. please click here for the full data sheet.
part number structure ? dimensions are in inches (mm). ? ripple and noise is shown at vout=1v. see specs for details. ? all speci? cations are at nominal line voltage, vout= 5v and full load, +25 deg.c. unless otherwise noted. output capacitors are 1 f ceramic and| 10 f electrolytic in parallel. input cap is 22 f. see detailed speci? cations. i/o caps are necessary for our test equip- ment and may not be needed for your application. vin must be 2v or higher than vout for 3.3 to 5v outputs. ordering guide root model output input ef? ciency package v out (volts) i out (amps max) power (watts) r/n (mvp-p) regulation (max.) v in nom. (volts) range (volts) i in , no load (ma) i in , full load (amps) case pinout max. line load min. typ. okr-t/3-w12-c 0.591-6 3 15 25 0.3% 1.4% 12 4.5-14 80 1.34 90.75% 93% c72 p73 performance speci? cations and ordering guide output voltage range t = trimmable, 0.591-6 volts wide input voltage range w12 = 4.5 C 14 volts w12 okami non-isolated pol maximum rated output current in amps sip-mount ok r -/- t 3 c - rohs hazardous substance compliance c = rohs-6 ( does not claim eu rohs exemption 7bClead in solder ) note: some model number combinations may not be available. contact murata power solutions for availability. product label because of the small size of these products, the product label contains a character-reduced code to indicate the model number and manufacturing date code. not all items on the label are always used. please note that the label dif- fers from the product photograph on page 1. here is the layout of the label: the label contains three rows of information: first row C murata power solutions logo second row C model number product code (see table) third row C manufacturing date code and revision level the manufacturing date code is four characters: first character C last digit of manufacturing year, example 200 9 second character C month code (1 through 9 and o through d) third character C day code (1 through 9 = 1 to 9, 10 = o and 11 through 31 = a through z) fourth character C manufacturing information figure 2. label artwork layout xxxxxx product code mfg. date code revision level ymdx rev. model number product code okr-t/3-w12-c r01103 okr-t/3 series adjustable output 3-amp sip-mount dc/dc converters www.murata-ps.com email: sales@murata-ps.com 30 oct 2009 mdc_okr-t/3-w12.a02_short page 2 of 3 this data sheet contains core information only. please click here for the full data sheet.
mechanical specifications input/output connections okr-t-w12 pin function p73 1 remote on/off control 2+v in 3 ground 4+v out 5 output trim 0.05 (1.3) 0.05 (1.3) 0.067 (1.7) 0.134 (3.4) 0.067 (1.7) 0.134 (3.4) 0.205 (5.2) 0.30 (7.62) 0.15 (3.8) 0.15 (3.8) 0.032 (0.81) 0.032 (0.81) 0.05 (1.3) ref thk 0.05 (1.3) ref thk 0.20 (5.1) okr-t/3 case c72 0.22 (5.6) 0.12 (3.05) pin #1 pin diameter: 0.032 (0.81) tolerance: 0.002 (0.05) pin material: copper alloy pin ?nish: pure matte tin 100-300 in. over 75-100 in. nickel pin #1 c l pin #5 0.41 (10.4) 0.65 (16.5) okr-t/6 okr-t/10 case c90 figure 2. okr series component locations are typical. third angle projection dimensions are in inches (mm shown for ref. only). components are shown for reference only. tolerances (unless otherwise speci?ed): .xx 0.02 (0.5) .xxx 0.010 (0.25) angles 2? okr-t/3 series adjustable output 3-amp sip-mount dc/dc converters murata power solutions, inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. the descriptions contained her ein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. speci? cations are subject to cha nge without notice. ? 2009 murata power solutions, inc. www.murata-ps.com/locations email: sales@murata-ps.com murata power solutions, inc. 11 cabot boulevard, mans? eld, ma 02048-1151 u.s.a. iso 9001 and 14001 registered 30 oct 2009 mdc_okr-t/3-w12.a02_short page 3 of 3 this data sheet contains core information only. please click here for the full data sheet.
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