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innoline dc/dc-converter with 3 year warranty r-78aa-0.5 iec/en-60950-1 certified note 1:1.5v output can be unstable with vin>30vdc 0.5 amp smd single output replacement for r-78axx-0.5smd series rohs 6/6 conform (100% lead free) efficiency up to 97%,non isolated, no need for heatsinks high reflow temperature smd package adjustable output voltage wide input range.(4.75v ~ 32v) short circuit protection, thermal shutdown remote on/off control ul94v-0 package material very low shutdown current see innoline application notes for use as an inverter (alternative to lm79xx linear) features selection guide part input output adjust output efficiency number range voltage range current min. vin max. vin smd (v) (v) (v) (a) (%) (%) r-78aa1.5-0.5smd* 4.75 ? 30 1.5 fixed 0.5 73 63 r-78aa1.8-0.5smd* 4.75 ? 32 1.8 1.5~3.0 0.5 82 71 r-78aa2.5-0.5smd* 4.75 ? 32 2.5 1.5~3.0 0.5 87 77 r-78aa3.3-0.5smd* 4.75 ? 32 3.3 3.0~5.5 0.5 91 81 r-78aa5.0-0.5smd* 6.5 ? 32 5.0 3.0~8.0 0.5 94 86 r-78aa6.5-0.5smd* 8.0 ? 32 6.5 3.3~11.0 0.5 95 88 r-78aa9.0-0.5smd* 11 ? 32 9.0 4.5~12.6 0.5 96 92 r-78aa12-0.5smd* 15 ? 32 12 4.5~12.6 0.5 97 94 r-78aa15-0.5smd* 18 ? 32 15 fixed 0.5 97 95

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derating-graph (ambient temperature) the r-78aaxx-0.5smd series are manufactured without lead and meet the requirements for rohs 6/6 as well as the increased reflow soldering temperatures associated with vapor phase soldering, making these high efficiency switching regulators ideally suited to modern pick-and-place mass production. the efficiency of up to 97% means that very little energy is wasted as heat. the additional features of remote on/off control and adjustable output voltages will find many uses in the battery-powered, industrial, medical and automotive markets. description * add suffix -r for tape&reel packing e.g. r-78aa5.0-0.5-r . for more details see application notes. standard application circuit << 6

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3,3* rohs 2011/65/eu 6/6 refer to application notes www.recom-power.com i-7 rev: 1/2015
r.78aa-0.5 characteristics conditions min. typ. max. input voltage range see table 4.75v 32v 34v abs. max. output voltage range see table 1.5v 15v output current (see note) all series 0ma* 500ma short circuit input current vin = 24v 60ma 100ma internal power dissipation 0.4w short circuit protection continuous, automatic recovery output voltage accuracy 100% load 2% 3% adjustable voltage range see table 1 50% line voltage regulation (vin = min. to max. at full load) 1.5v to 6.5v 0.2% 0.4% 9v to 15v 0.1% 0.2% load regulation (10 to 100% full load) 1.5v to 6.5v 0.7% 1.0% 9v to 15v 0.25% 0.4% dynamic load stability 100% <-> 50% load 75v 100mv with 100f output capacitor 100% <-> 10% load 100mv ripple & noise (without output capacitor) 1.5v to 6.5v 20mvp-p 30mvp-p 9v to 15.5v 30mvp-p 40mvp-p temperature coefficient -40c ~ +85c ambient 0.015%/c max capacitance load with normal start-up time, no external components 220f with <1 second start up time + diode protection circuit 6800f switching frequency 280khz 330khz 380khz quiescent current vin = min. to max. at 0% load 5ma 7ma on/off remote control pin drive current on: open or 1.6v r-78aa-0.5 innoline dc/dc-converter characteristics 8!!*
*3 8!!*
*3-1 -&226, -9$- -9#$#- -9- -9:- -9-;- -- # # -9$- efficiency 8!!*
*3 $ 8!!*
*3-1 6,-95< -9$- -9#$#- -9- -9-
" $ $# $ $ $ -9- -9$- 8!!*
*3 $ 8!!*
*3-1 6,-95 -9$- -9#$#- -9- -9;-
" $ $# $ $ $ -9$- 72
- 72
-1 -!222, -9$- -9#$#- -9- -9:- -9- # -- # -9- -9$- ripple 72
- $ 72
-1 6,-9- -9$- -9#$#- -9- -9-
" $ $# $ $ $ -9$- -9:- -9- 72
- $ 72
-1 6,-95 -9#$#;:- -9- -9-
" $ $# $ $ $ -9$- -9$- -9- r-78aaxx-0.5 smd series www.recom-power.com i-9 rev: 1/2015
r-78aa-0.5 application examples innoline dc/dc-converter <<$ 6 /'1'.##.9- "-.,6#' $2 >8'1'.#>381#8 "-.,6#'8'1'.#-.1?' 81# 8'1'.# $$ >8'1'.#>1381#8 $3
<< 6
$ %&''()* +#/'&-.1%-'1-. 0+/-.1.1 3$)/.- 8:;.<'' =1,-.&-.1 5%5:: #5%5::'- r-78aaxx-0.5 smd series optional protection circuit <(<* 6

@'#/&-.1 /'/ @; add a blocking diode to vout if current can flow backwards into the output, as this can damage the converter when it is powered down. the diode can either be fitted across the device if the source is low impedance or fitted in series with the output (recommended).

<(<* 6 @; optional protection 1: optional protection 2:

!" application example: driving a high capacitive load i-10 www.recom-power.com rev: 1/2015
r-78aa-0.5 $# a#? $ @/? $# $ $ $< :$ :$ :$ 456 <<6 $ #$ $ $# $ # : # : package style and pinning (mm) smd 10pin package pin connections pin # 1,2 +vin 3,7,8,9 gnd 4,5 +vout 6 v adj 10 remote on/off xx.x 0.5mm xx.xx 0.25mm table 1: adjustment resistor values innoline dc/dc-converter r-78aaxx-0.5 smd series recommended footprint details r1 r2 r3 vref(v) 1.8v 10k? 21k? 5.6k? 1.23 2.5v 22k? 21k? 5.6k? 1.23 3.3v 16.9k? 10k? 5.6k? 1.23 5.0v 30.9k? 10k? 10k? 1.23 6.5v 43k? 10k? 10k? 1.23 9v 63.4k? 10k? 22.1k? 1.23 12v 88.7k? 10k? 22.1k? 1.23 7 , 7 -,d @- ef/ 7# 7 7 @- ef/
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! r 2 (r 1 +r 3 ) x (v ref - v o ) + v ref x r 1 r 3 trim down r down = r 2 v o - v ref (r 1 + r 2 ) r 2 r 3 (v ref - v o ) + v ref r 1 (r 2 + r 3 ) trim up r up = r 2 (v o - v ref) - v ref r 1 www.recom-power.com i-11 rev: 1/2015 the product information and specifications are subject to change without prior notice. recom products are not authorized for us e in safety-critical applications (such as life support) without recoms explicit written consent. a safety-critical application is defined as an applica tion where a failure of a recom product may reasonably b e expected to endanger or cause loss of life, inflict bodily harm or damage property. the buyer shall indemnify and hold harmless recom, its affiliated companies and its representatives against any damage claims in connecti on with the unauthorized use of recom products in such safety-critical applications.

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