? seaward electronics, inc., 2004. ? www.seawardinc.com.cn ? tel: 0086-010-82895700 ? fax: 0086-010-82895706 room 1605, building 1, international pioneering park, #1 shangdi xinxi road ? haidian district, beijing 100085, china preliminary and all contents are subject to change without prior notice. 1 seaward electronics inc. 1a positive voltage regulators (preliminary) SE8117 features ? low dropout performance. ? guaranteed 1a output current. ? wide input supply voltage range. ? over-temperature and over-current protection. ? fixed or adjustable output voltage. ? rugged 3kv esd withstand capability. ? available in sot-223 packages. description the SE8117 series of high performance low dropout voltage regulators are designed for applications that require efficient conversion and fast transient response. pin configuration 1 23 in out adj/gnd tab is vout sot-223 front view ordering information device package v out volts SE8117ta sot-223 output voltage is adjustable. SE8117txx sot-223 xx denotes voltage options. available voltages are 1.5v, 1.8v, 2.5v, 3.0v, and 3.3v. absolute maximum rating symbol parameter maximum units v in input supply voltage 9 v jc thermal resistance junction to case sot-223 15 c/w ja thermal resistance junction to ambient sot-223 156 c/w t j operating junction temperature range 0 to 125 c t stg storage temperature range -40 to 150 c t lead lead temperature (soldering 10 sec) 260 c application ? active scsi terminators. ? high efficiency linear regulators. ? 5v to 3.3v linear regulators ? motherboard clock supplies.
? seaward electronics, inc., 2004. ? www.seawardinc.com.cn ? tel: 0086-010-82895700 ? fax: 0086-010-82895706 room 1605, building 1, international pioneering park, #1 shangdi xinxi road ? haidian district, beijing 100085, china preliminary and all contents are subject to change without prior notice. 2 seaward electronics inc. 1a positive voltage regulators (preliminary) SE8117 electrical characteristic v in,max 8v, v in,min ? v out = 1.5v, i out = 10ma, c in = 10f, c out = 22f, t j = 0 ? 125c, unless otherwise specified. symbol parameter test condition min typ max units v o output voltage (1) 10ma i out 1a, t a = 25c, SE8117t15 SE8117t18 SE8117t25 SE8117t30 SE8117t33 (-2%) 1.5 1.8 2.5 3.0 3.3 (+2%) v v ref reference voltage (1) (adj. voltage version) 10ma i out 1a 1.225 (-2%) 1.250 1.275 (+2%) v v sr line regulation (1) i out = 10ma 0.3 % v lr load regulation (1) (v in - v out ) = 2v 10ma i out 1a 0.4 % i q quiescent current 9 ma i adj adjust pin current 48 a ? i adj adjust pin current change 10ma i out 1a 0.2 a v d dropout voltage (2) ? v ref = 1%, i out = 1a 1.1 v i o minimum load current 4 ma i cl current limit 1.8 a t c temperature coefficient 0.07 %/c otp thermal protection 175 c v n rms output noise t a = 25c, 10hz f 10khz 0.003 %v o r a ripple rejection ratio f = 120hz, c out = 22 f (tantalum), (v in - v out ) = 3v, i out = 1a 72 db notes: 1. low duty cycle pulse testing with which t j remains unchanged. 2. ? v out , ? v ref = 1%.
? seaward electronics, inc., 2004. ? www.seawardinc.com.cn ? tel: 0086-010-82895700 ? fax: 0086-010-82895706 room 1605, building 1, international pioneering park, #1 shangdi xinxi road ? haidian district, beijing 100085, china preliminary and all contents are subject to change without prior notice. 3 seaward electronics inc. 1a positive voltage regulators (preliminary) SE8117 typical applications SE8117t15 r2 24.9 ohm r1 124 ohm c in 10uf 3 1 2 v ref i adj v out = 1.5v v in >= 3.0v adjustable voltage regulator SE8117t33 c out 22uf c in 10uf 3 1 2 i q v out = 3.3v v in >= 4.8v fixed voltage regulator c out 22uf
? seaward electronics, inc., 2004. ? www.seawardinc.com.cn ? tel: 0086-010-82895700 ? fax: 0086-010-82895706 room 1605, building 1, international pioneering park, #1 shangdi xinxi road ? haidian district, beijing 100085, china preliminary and all contents are subject to change without prior notice. 4 seaward electronics inc. 1a positive voltage regulators (preliminary) SE8117 typical performance characteristics reference voltage vs junction temperature 1220 1225 1230 1235 1240 1245 1250 -25 0 25 50 75 100 125 150 junction temperature (c) reference voltage (mv) output voltage vs junction temperature 3.20 3.25 3.30 3.35 3.40 3.45 3.50 3.55 3.60 3.65 3.70 -25 0 25 50 75 100 125 150 junction temperature (c) output voltage dropout voltage vs output current 1 1.02 1.04 1.06 1.08 1.1 1.12 1.14 0 200 400 600 800 1000 output current (ma) dropout voltage (v) line transients c in = 0.1 f, c out = 1 f v in = 4.5v ? 5.5 v load transients c out = 22 f, c in = 10 f i load = 10ma ? 1a
? seaward electronics, inc., 2004. ? www.seawardinc.com.cn ? tel: 0086-010-82895700 ? fax: 0086-010-82895706 room 1605, building 1, international pioneering park, #1 shangdi xinxi road ? haidian district, beijing 100085, china preliminary and all contents are subject to change without prior notice. 5 seaward electronics inc. 1a positive voltage regulators (preliminary) SE8117 outline drawing for sot-223
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