cui .com date 04/22/2013 page 1 of 7 series : v78-1000 description: non-isolated switching regulator date 04/22/2013 page 1 of 7 features ? 1 a current output ? extremely high efficiency up to 97% ? no heat sink required ? pin compatible to lm78xx linear regulators ? available in straight and right angle sip packages ? low ripple and noise ? short circuit protection, thermal shutdown ? wide temperature (-40~85c) rohs part number key model input voltage output voltage output current ripple and noise 1 effciency typ (vdc) range (vdc) (vdc) max (ma) max (mvp-p) vin min (%) vin max (%) v7803-1000 24 4.75~28 3.3 1,000 35 90 83 v7805-1000 24 6.5~32 5 1,000 35 93 88 v7806-1000 24 9~32 6.5 1,000 35 94 90 V7809-1000 24 12~32 9 1,000 35 95 92 v7812-1000 24 16~32 12 1,000 35 96 94 v7815-1000 24 20~32 15 1,000 35 97 94 notes: 1. ripple and noise are measured at 20 mhz bw v78 xx - 1000 x output voltage output current base number "blank" = straight pins r = 90 pins
cui .com cui inc series : v78-1000 description: non-isolated switching regulator date 04/22/2013 page 2 of 7 input parameter conditions/description min typ max units operating input voltage 3.3 v model 5 v model 6.5 v model 9 v model 12 v model 15 v model 4.75 6.5 9.0 12 16 20 24 24 24 24 24 24 28 32 32 32 32 32 vdc vdc vdc vdc vdc vdc output parameter conditions/description min typ max units line regulation vin = min ~ max, at full load 0.2 0.4 % load regulation measured from 10% load to full load 0.4 0.6 % voltage accuracy 100% load 2 3 % switching frequency 100% load, input voltage range 280 330 450 khz temperature coeffcient 0.02 %/c load capatance 1,000 f protections parameter conditions/description min typ max units short circuit protection continuous, automatic recovery thermal shutdown 150 c safety and compliance parameter conditions/description min typ max units mtbf 2,000,000 hours rohs compliant yes environmental parameter conditions/description min typ max units operating temperature -40 85 c storage temperature -55 125 c case temperature 100 c storage humidity non-condensing 95 % temperature rise at full load 25 c lead temperature 1.5 mm from case for 10 seconds 300 c
cui .com cui inc series : v78-1000 description: non-isolated switching regulator date 04/22/2013 page 3 of 7 mechanical parameter conditions/description min typ max units dimensions 11.50 x 9.00 x 17.50 (0.689 x 0.354 x 0.453 inch) mm case material plastic (ul94-v0) weight 3.7 g v78xx-100 0 v78xx-1000r (botto mv ie w) 0. 30 [0 .012 ] 0.50 [0.020] 4.10 [0.161 ] 17.5 0[ 0.689] 0 . 50 [0 . 0 20] 2. 15 [0 .085 ] 5. 08 [0.200 ] 12 3 9. 00 [0.354 ] 2. 15 [0 .085 ] 4.10[0.161 ] 9. 00 [0.354 ] 11 .50[0.45 3] 17 .5 0 [0.6 89 ] 0 . 50 [ 0.020 ] 5.08 [0.200 ] 11 .50[0.453 ] 1.50 [0.0 59] 1 2 3 (b ot to mv ie w) 2. 54 [0.100 ] 1.00 [0.039] 12 3 2 .5 4 [0.100 ] 2. 15 [0.0 85 ] 5.08 [0.200] 1.00 [0.039 ] 5. 08 [0.200 ] 1.35 [0.053] mechanical drawing pin connections pin function 1 +vin 2 gnd 3 +vo units: mm [inches] tolerance: 0.25 [0.010] pin section tolerance: 0.10 [0.004] 100 80 60 40 20 ambient t emper ature (c) load (% ) -40- 20 02 04 06 07 1 85 100 120 derating curves 1. output power vs. ambient temperature
cui .com cui inc series : v78-1000 description: non-isolated switching regulator date 04/22/2013 page 4 of 7 external capacitor table part number c1,c3 (ceramic capacitor) c2,c4 (ceramic capacitor) v7803-1000(r) 10f/50v 22f/6.3v v7805-1000(r) 10f/50v 22f/10v v7806-1000(r) 10f/50v 10f/10v V7809-1000(r) 10f/50v 10f/16v v7812-1000(r) 10f/50v 10f/25v v7815-1000(r) 10f/50v 10f/25v typical application circuit application example v78xx-1000(r) v78xx-1000(r) 1 2 3 +vin gn d -v ou t c2 gn d 1 2 3 +v ou t c3 c4 1. c1 and c2 are required and should be fitted close to the converter pins . 2. the cap acit ance of c1 ,c 2, c3 and c4 sees ex ternal capa cito r ta ble, it can be increased properl yi f required ,a nd ta ntalum or lo w esr electrolytic cap acitors may also suff ice. 3. no p arallel connectio no rp lug and play . c1 v78xx-1000(r) v78xx-1000(r) 1 2 3 vi n gn d +v ou t c2 c1 1 2 3 +vin gn d -v ou t c2 c1 gn d output ripple reduction 3 vi n gnd +v ou t 1 dc /d c co nv erte r c1 22 f 2 c2 lo ad l to reduce output ripple, it is recommended to add a lc filter in output port. l: recommended p arameter 10 h~47 h.
cui .com cui inc series : v78-1000 description: non-isolated switching regulator date 04/22/2013 page 5 of 7 efficiency and ripple curves v7803-1000 v7805-1000 v7812-1000 v7806-1000 V7809-1000 v7815-1000 v7803-1000 v7805-1000 v7812-1000 v7806-1000 V7809-1000 v7815-1000 v7803-1000 v7805-1000 v7812-1000 v7806-1000 V7809-1000 v7815-1000 v7803-1000 v7805-1000 v7812-1000 v7806-1000 V7809-1000 v7815-1000 v7803-1000 v7805-1000 v7812-1000 v7806-1000 V7809-1000 v7815-1000 v7803-1000 v7805-1000 v7812-1000 v7806-1000 V7809-1000 v7815-1000 ef ficiency ripple ef fi ci en cy vs vi n(fu ll load ) 60 70 80 90 100 4. 75 81 21 62 02 42 83 2 vi n( v) ef fi ci en cy (% ) v7803-1000 v7805-1000 v7812-1000 v7806-1000 V7809-1000 v7815-1000 ripple vs vi n( fu ll load) 5 10 15 20 25 30 35 40 4. 75 81 21 62 02 42 83 2 vi n( v) ripple (m v) ef fi ci en cy vs load(v in =v in _m in ) 65 70 75 80 85 90 95 100 40 80 2004 00 6008 00 1000 load(m a) ef fi ci en cy (% ) ripple vs load (v in =v in_m in ) 0 5 10 15 20 40 80 20 04 00 60 08 00 1000 load (m a) ripple (m v) ef fi ci en cy vs load(v in =v in _m ax ) 50 60 70 80 90 10 0 40 80 20 04 00 600 80 01 00 0 load(m a) ef fi ci en cy (% ) ri p ple vs load (v in =2 4v ) 0 5 10 15 20 25 30 35 40 80 20 04 00 60 08 00 1000 load (m a) ripple (m v)
cui .com cui inc series : v78-1000 description: non-isolated switching regulator date 04/22/2013 page 6 of 7 test configuration efficiency and output vo lt age ripple t est sc op e ce rami c 3 vi n gn d +v ou t c2 c1 25 .4 mm 1 2. 54 mm dc/d c co nv erte r 2 25 .4 mm 12 .7 mm 1f 10 f ta nt al um copp er st rip co pper st ri p lo ad st art-up and load t ransient response t est 3 vi n gnd +v ou t c2 c1 50.8 mm 1 2. 54 mm dc/d c co nv er te r 2 sc ope c opper st ri p lo ad c opper st ri p note: all specifcations measured at 25c, humidity <75%, nominal input voltage, and full load unless otherwise noted.
cui inc series : v78-1000 description: non-isolated switching regulator date 04/22/2013 page 7 of 7 cui offers a two (2) year limited warranty. complete warranty information is listed on our website. cui reserves the right to make changes to the product at any time without notice. information provided by cui is believed to be accurate and reliable. however, no responsibility is assumed by cui for its use, nor for any infringements of patents or other rights of third parties which may result from its use. cui products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. a critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. headquarters 20050 sw 112th ave. tualatin, or 97062 800.275.4899 fax 503.612.2383 cui .com techsupport@cui.com rev. description date 1.0 initial release 07/13/2010 1.01 v-infnity branding removed 09/04/2012 1.02 updated typical application circuits 09/25/2012 1.03 corrected switching frequency values 04/22/2013 the revision history provided is for informational purposes only and is believed to be accurate. revision history
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