ver : b_0 update : 2012.01.20 encapsulated dc-dc converter sr78/1000 series 1 a http://www.archcorp.com.tw tel: +886-2-26989508 fax: +886-2-26981319 -1- all specifications are typical at normal i nput voltage, full load and +25c otherwise noted electrical specifications model no. ( single output ) sr78-1.5s/1000 sr78-1.8s/1000 sr78-2.5s/1000 sr78-3.3s/1000 sr78-5s/1000 max output wattage (w) 1. 5w 1.8w 2.5w 3.3w 5w input voltage range (v.dc.) 4.6-36v 4.6-36v 4.6-36v 4.75-36v 6.5-36v output voltage (v.dc.) 1.5v / 1000ma 1.8v / 1000ma 2.5v / 1000ma 3.3v / 1000ma 5.0v / 1000ma efficiency(min. vin) (typ.) 76% 80% 85% 88% 93% efficiency(max. vin) (typ.) 66% 71% 76% 80% 85% model no. ( single output ) sr78-6.5s/1000 sr78-9s/1000 sr78-12s/1000 sr78-15s/1000 max output wattage (w) 6.5w 9w 12w 15w input voltage range (v.dc.) 8.0-36v 11-36v 15-36v 18-34v output voltage (v.dc.) 6.5v / 1000ma 9.0v / 1000ma 12v / 1000ma 15v / 1000ma efficiency(min. vin) (typ.) 93% 95% 95% 96% efficiency(max. vin) (typ.) 87% 90% 92% 93% model no. ( single output ) sr78-1.5 s/1000 sr78-1.8 s/1000 sr78-2.5 s/1000 sr78-3.3 s/1000 sr78-5s /1000 sr78-6.5 s/1000 sr78-9s /1000 sr78-12 s/1000 sr78-15 s/1000 max output wattage (w) 1.5w 1.8w 2.5w 3.3w 5w 6.5w 9w 12w 15w input voltage range (v.dc.)(note 1) 4.6-36v 4.6-36v 4.6-36v 4.75-36v 6.5-36v 8.0-36v 11-36v 15-36v 18-34v nominal input 9 vdc 12 vdc 24 vdc input input filter c filter voltage (v.dc.) 1.5v 1.8v 2.5v 3.3v 5.0v 6.5v 9.0v 12v 15v voltage accuracy (at full load) 3% current (ma) (max.) 1000 quiescent current (ma) (max.) 1~2 (vin=min. to max. at 0% load) minimum load (note 2) 0% line regulation (ll-28v) (typ.) (note 1) 1% (at full load) load regulation (10-100%) (typ.) 0.8% (nominal input) ripple&noise (nominal input) (20mhz) 50mv 75mv 100mv 120mv switching frequency (typ.) 500khz output capacitor load (max) 470uf current limit (ma) (max.) 2000 short circuit protection continuous, auto-recovery protection thermal shout down (typ.) +160c (internal ic junction) operating temperature -40c?+85c (with derating) storage temperature -55c?+125c operating case temperature +100c max. case thermal impendance (max.) 70c / w humidity 95% rh environment mtbf 5,358,000 h @ 25c (mil-hdbk-217f) dimension (l x w x h) 0.45 x 0.40 x 0.3 inches ( 11.5 x 10.2 x 7.55 mm ) tolerance 0.25 mm case material non-conductive black plastic physical weight 1.9 g conducted emissions en 55022 class a(note3) radiated emissions en 55022 class a(note3) conducted emissions en 55022 class b(note4) emc radiated emissions en 55022 class b(note4) key features ? sip-package fits existing to-220 footprint ? pin compatible with lmxx linear regulators ? efficiency up to 96%,non isol ated, no need for heatsinks ? wide input operating (4.6v~36v) ? non standard outputs available as specials between 1.5v~15v ? short circuit protection ? over-current protection & over-temperature protection ? ul94v-0 package material ? meet en55022 class a conducted emi ssions& radiated emissions(note 3) ? meet en55022 class bconducted emissions& radiated emissions(note 4) ? 3-years product warranty a type pin material: metal (nickel plate brass)
ver : b_0 update : 2012.01.20 encapsulated dc-dc converter sr78/1000 series 1 a http://www.archcorp.com.tw tel: +886-2-26989508 fax: +886-2-26981319 -2- b. line regulation (ll-36v) (typ.) < sr78-1.5s sr78-1.8s< 2.5% (at full load) sr78-2.5s sr78-3.3s< 2% (at full load) note 1: a. input capacitor needed only if vin>28vdc note 2: a. the input voltage minus the output voltage should be greater than 3 vdc, if less, a 3% minimum load is required for proper regulation. b. for sr78-1.5s or sr78-1.8s models, inputs greater than 28vdc require 3% minimum load for proper regulation. note 3: note 4: mechanical dimension ( top view ) pin# single 1 +vin 2 gnd 3 +vout derating sr78-1.5s 5s 1.8 s 2.5 s 3.3s sr78-6.5s 9s 12 s 15s
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