page ? no. ? : ? 1/9 ds \ rs7213 \ 02 ??? september, ? 2009 ? www.orister.com rs7213 ? 300ma ? high ? speed, ? low ? noise ? ldo ? with ? fast ? enable ? and ? fast ? discharge ? function ? ? general ? description ? the ? rs7213 ? series ? is ? a ? low \ dropout ? linear ? regulator ? with ? on/off ? control ? that ? operates ? in ? the ? input ? voltage ? range ? from ? +1.8v ? to ? +5.5v ? and ? delivers ? 300ma ? output ? current. ? ? the ? fixed ? output ? voltage ? is ? preset ? at ? an ? internally ? trimmed ? voltage ? 1.8v, ? 2.5v, ? or ? 3.3v. ? other ? options ? 1.0v, ? 1.2v, ? 1.5v, ? 2.2v, ? 3.0v ? and ? 3.6v ? are ? available ? by ? special ? order ? only. ? ? the ? rs7213 ? consists ? of ? a ? 0.87v ? bandgap ? reference, ? an ? error ? amplifier, ? and ? a ? p \ channel ? pass ? transistor. ? other ? features ? include ? short \ circuit ? protection, ? thermal ? shutdown ? protection, ? fast ? respond ? and ? fast ? discharge ? functions. ? the ? rs7213 ? series ? devices ? are ? available ? in ? sot \ 25 ? & ? sc \ 70 \ 5 ? packages. ? features ? applications ? operating ? voltage ? range +1.8v ? to ? +5.5v ? output ? voltages +0.9v ? to ? +5.0v ? (0.1v ? step) ? dropout ? voltage 90mv@100ma ? (typ.) ? fast ? response ? in ? power \ on ? transient 35 s ? (typ.) ? low ? current ? consumption 30 a ? (typ.) ? shutdown ? current 0.7 a ? (typ.) ? 2% ? output ? voltage ? accuracy ? (special ? 1%highly ? accurate), ? v out R 1.8v ? low ? esr ? capacitor ? compatible ? high ? ripple ? rejection 70db ? (typ.) ? output ? current ? limit ? protection 500ma ? (typ.) ? short ? circuit ? protection 70ma ? (typ.) ? thermal ? overload ? shutdown ? protection ? control ? output ? on/off ? function ? sot \ 25 ? & ? sc \ 70 \ 5 ? packages ? rohs ? compliant ? and ? 100% ? lead ? (pb) \ freeand ? green ? (halogen ? free ? with ? commercial ? standard) ? battery \ powered ? equipment ? voltage ? regulator ? for ? microprocessor ? voltage ? regulator ? for ? lan ? cards ? wireless ? communication ? equipment ? audio/video ? equipment ? post ? regulator ? for ? switching ? power ? home ? electric/electronic ? appliance ? cdma/gsm ? cellular ? handsets ? laptop, ? palmtops, ? notebook ? computers ? portable ? information ? application ? application ? circuits ? ? ? ? ? ? ? this ? integrated ? circuit ? can ? be ? damaged ? by ? esd. ? orister ? corporation ? recommends ? that ? all ? integrated ? circuits ? be ? handled ? with ? appropriate ? precautions. ? failure ? to ? observe ? proper ? handling ? and ? installation ? procedures ? can ? cause ? damage. ? ? esd ? damage ? can ? range ? from ? subtle ? performance ? degradation ? to ? complete ? device ? failure. ? precision ? integrated ? circuits ? may ? be ? more ? susceptible ? to ? damage ? because ? very ? small ? parametric ? changes ? could ? cause ? the ? device ? not ? to ? meet ? its ? published ? specifications. ?
page ? no. ? : ? 2/9 ds \ rs7213 \ 02 ??? september, ? 2009 ? www.orister.com pin ? assignment ? ?? sot \ 25 ? sc \ 70 \ 5 ? ?? ? ? ? package ? pin ? symbol ? description ? 1 ? vin ? regulator ? input ? pin ? 2 ? gnd ? ground ? pin ? 3 ? en ? chip ? enable ? pin ? 4 ? nc ? no ? connection ? sot \ 25 ? 5 ? vout ? regulator ? output ? pin ? ? package ? pin ? symbol ? description ? 1 ? vin ? regulator ? input ? pin ? 2 ? gnd ? ground ? pin ? 3 ? en ? chip ? enable ? pin ? 4 ? nc ? no ? connection ? sc \ 70 \ 5 ? 5 ? vout ? regulator ? output ? pin ? ordering ? information ? device ? device ? code ? rs7213 \ xx ? eee ? yy ? z ? xx ? is ? nominal ? output ? voltage ? (for ? example, ? 18 ? = ? 1.8v, ? 33 ? = ? 3.3v, ? 285 ? = ? 2.85v). ? eee ? is ? ce ? input ? logic ? & ? discharge ? function ? selection ? : ? (see ? ce ? & ? discharge ? function ? selection ? table ) ? yy ? is ? package ? designator ? : ? ne ? : ? sot \ 25 ? sc ? : ? sc \ 70 \ 5 ? z ? is ? lead ? free ? designator ? : ? p: ? commercial ? standard, ? lead ? (pb) ? free ? and ? phosphorous ? (p) ? free ? package ? g: ? green ? (halogen ? free ? with ? commercial ? standard) ? ce ? & ? discharge ? function ? selection ? table ? en ? type ? en ? type ? eee ? code ? type ? 1 ? type ? 2 ? discharge eee ? code ? type ? 1 ? type ? 2 ? discharge nhf ? none ? high ? active ? fast ? uhn ? pull ? high ? high ? active ? normal ? nlf ? none ? low ? active ? fast ? uln ? pull ? high ? low ? active ? normal ? nhn ? none ? high ? active ? normal ? dhf ? pull ? low ? high ? active ? fast ? nln ? none ? low ? active ? normal ? dlf ? pull ? low ? low ? active ? fast ? uhf ? pull ? high ? high ? active ? fast ? dhn ? pull ? low ? high ? active ? normal ? ulf ? pull ? high ? low ? active ? fast ? dln ? pull ? low ? low ? active ? normal ? ? ? ? ?
page ? no. ? : ? 3/9 ds \ rs7213 \ 02 ??? september, ? 2009 ? www.orister.com block ? diagram ? ? ? ? absolute ? maximum ? ratings ? parameter ? symbol ? ratings ? units input ? voltage ? v in ? to ? gnd ? v in ? 6.0 ? v ? output ? current ? limit, ? i (limit) ? i limit ? 0.5 ? a ? junction ? temperature ? t j ? +155 ? o c ? sot \ 25 ? 250 ? thermal ? resistance ? sc \ 70 \ 5 ? ja ? 333 ? o c/w sot \ 25 ? 400 ? power ? dissipation ? sc \ 70 \ 5 ? p d ? 200 ? mw ? operating ? ambient ? temperature ? t opr ?\ 40 ? ~ ? +125 ? o c ? storage ? temperature ? t stg ?\ 55~+150 ? o c ? lead ? temperature ? (soldering, ? 10sec) ?\? +260 ? o c ? notes ? 1 the ? power ? dissipation ? values ? are ? based ? on ? the ? condition ? that ? junction ? temperature ? t j ? and ? ambient ? temperature ? t a ? difference ? is ? 100c. ? 2 stresses ? beyond ? those ? listed ? under ? ?absolute ? maximum ? ratings? ? may ? cause ? permanent ? damage ? to ? the ? device. ? these ? are ? stress ? ratings ? only, ? and ? function ? operation ? of ? the ? device ? at ? these ? or ? any ? other ? conditions ? beyond ? those ? indicated ? under ? ?recommended ? operating ? conditions? ? is ? not ? implied. ? exposure ? to ? absolute \ maximum ? ?rated ? conditions ? for ? extended ? periods ? may ? affect ? device ? reliability. ? ? ? ? ? ? ? ?
page ? no. ? : ? 4/9 ds \ rs7213 \ 02 ??? september, ? 2009 ? www.orister.com electrical ? characteristics ? (v in =5v, ? t a =25c, ? unless ? otherwise ? specified) ? symbol ? parameter ? conditions ? min. ? typ. ? max. unit ? v in ? input ? voltage ?\? 1.8 ?\? 5.5 ? v ? v in =v out +1.0v, ? i out =1ma, ? vout R 1.8v ? \ 2% ? +2% ? v ? v out ? output ? voltage ? vin=v out +1.0v, ? i out =1ma, ? v out 1.8v, ? v in 2.4v ? \ 35 ? v out ? +35 ? mv ? i max ? output ? current ? (see ? note ? 1) ? v out +1.0v Q v in Q 5.5v, ? v in R 2.4v ? 300 ?\? \? ma ? v drop ? dropout ? voltage ? i out =300ma, ? v out 2.0v ? \? 300 ? 500 ? mv ? v line ? line ? regulation ? v out +1.0v Q v in Q 5.5v, ? i out =1ma ?\? 0.2 ? 0.3 ? %/v ? v load ? load ? regulation ? v in =v out +1v, ? 1ma Q i out Q 100ma ?\? 0.01 ? 0.02 ? %/ma ? i q ? ground ? pin ? current ? i load =0ma ? to ? 300ma, ? v in =v out +1v ?\? 30 ? 50 ? ua ? i sd ? shutdown ? current ? v in =v out +1v, ? en=0v, ? no ? load ?\? 0.7 ? 1.0 ? ua ? i sc ? short ? circuit ? current ?\?\? 70 ?\? ma ? psrr ? ripple ? rejection ? i out =30ma, ? f=1khz, ? c out =1uf ?\? 70 ?\? db ? e n ? output ? noise ? i out =100ma ? , ? f=1khz, ? c out =1uf ?\? 40 ?\? uv (rms) ? v ih ? en ? pin ? input ? voltage ? ?h? ? v in Q 5.0v ? 1.6 ?\? \? v ? v il ? en ? pin ? input ? voltage ? ?l? ? v in Q 5.0v ?\?\? 0.3 ? v ? r dis ? discharge ? resistor ? v en =0v ?\? 30 ? 100 ?? t dis ? discharge ? time ? v out =3.3v ? to ? 0v, ? c out =1uf ?\? 70 ? 100 ? us ? t c ? temperature ? characteristics ? i out =1ma, ?\ 25c Q t opr Q +85c ?\? 100 ?\? ppm/ ? o c ? t sd ? thermal ? shutdown ? temperature ?\? \? 150 ?\? o c ? t hys ? thermal ? shutdown ? hysteresis ?\?\? 30 ?\? o c ? notes ? 1 measured ? using ? a ? double ? sided ? board ? with ? 1? ? x ? 2? ? square ? inches ? of ? copper ? area ? connected ? to ? the ? gnd ? pins ? for ? ?heat ? spreading?. ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
page ? no. ? : ? 5/9 ds \ rs7213 \ 02 ??? september, ? 2009 ? www.orister.com detail ? description ? the ? rs7213 ? is ? a ? low \ dropout ? linear ? regulator. ? the ? device ? provides ? preset ? 1.8v, ? 2.5v ? and ? 3.3v ? output ? voltages ? for ? output ? current ? up ? to ? 300ma. ? other ? mask ? options ? for ? special ? output ? voltages ? are ? also ? available. ? as ? illustrated ? in ? function ? block ? diagram, ? it ? consists ? of ? a ? 0.87v ? bandgap ? reference, ? an ? error ? amplifier, ? a ? p \ channel ? pass ? transistor ? and ? an ? internal ? feedback ? voltage ? divider. ? ? the ? bandgap ? reference ? for ? is ? connected ? to ? the ? error ? amplifier, ? which ? compares ? this ? reference ? with ? the ? feedback ? voltage ? and ? amplifies ? the ? voltage ? difference. ? if ? the ? feedback ? voltage ? is ? lower ? than ? the ? reference ? voltage, ? the ? pass ? transistor?s ? gate ? is ? pulled ? lower, ? which ? allows ? more ? current ? to ? pass ? to ? the ? output ? pin ? and ? increases ? the ? output ? voltage. ? if ? the ? feedback ? voltage ? is ? too ? high, ? the ? pass ? transistor?s ? gate ? is ? pulled ? up ? to ? decrease ? the ? output ? voltage. ? ? the ? output ? voltage ? is ? feed ? back ? through ? an ? internal ? resistor ? divider ? connected ? to ? v out ? pin. ? additional ? blocks ? include ? an ? output ? current ? limiter, ? thermal ? sensor, ? and ? shutdown ? logic. ? ? internal ? p \ channel ? pass ? transistor ? the ? rs7213 ? features ? a ? p \ channel ? mosfet ? pass ? transistor. ? unlike ? similar ? designs ? using ? pnp ? pass ? transistors, ? p \ channel ? mosfets ? require ? no ? base ? drive, ? which ? reduces ? quiescent ? current. ? pnp \ based ? regulators ? also ? waste ? considerable ? current ? in ? dropout ? when ? the ? pass ? transistor ? saturates, ? and ? use ? high ? base \ drive ? currents ? under ? large ? loads. ? the ? rs7213 ? does ? not ? suffer ? from ? these ? problems ? and ? consumes ? only ? 30 a ? (typ.) ? of ? current ? consumption ? under ? heavy ? loads ? as ? well ? as ? in ? dropout ? conditions. ? ? enable ? function ? en ? pin ? starts ? and ? stops ? the ? regulator. ? when ? the ? en ? pin ? is ? switched ? to ? the ? power ? off ? level, ? the ? operation ? of ? all ? internal ? circuit ? stops, ? the ? build \ in ? p \ channel ? mosfet ? output ? transistor ? between ? pins ? v in ? and ? v out ? is ? switched ? off, ? allowing ? current ? consumption ? to ? be ? drastically ? reduced. ? the ? v out ? pin ? enters ? the ? gnd ? level ? through ? the ? internal ? discharge ? path ? between ? v out ? and ? gnd ? pins. ? ? operating ? region ? and ? power ? dissipation ? maximum ? power ? dissipation ? of ? the ? rs7213 ? depends ? on ? the ? thermal ? resistance ? of ? the ? case ? and ? circuit ? board, ? the ? temperature ? difference ? between ? the ? die ? junction ? and ? ambient ? air, ? and ? the ? rate ? of ? airflow. ? the ? power ? dissipation ? across ? the ? devices ? is ? p ? = ? i out ? x ? (v in \ v out ). ? the ? resulting ? maximum ? power ? dissipation ? is: ? ja a j ca jc a j max ) t t ( ) t t ( p ? = + ? = ? ? where ? (t j \ t a ) ? is ? the ? temperature ? difference ? between ? the ? rs7213 ? die ? junction ? and ? the ? surrounding ? air, ? jc ? is ? the ? thermal ? resistance ? of ? the ? package ? chosen, ? and ? ca ? is ? the ? thermal ? resistance ? through ? the ? printed ? circuit ? board, ? copper ? traces ? and ? other ? materials ? to ? the ? surrounding ? air. ? for ? better ? heat \ sinking, ? the ? copper ? area ? should ? be ? equally ? shared ? between ? the ? v in , ? v out , ? and ? gnd ? pins. ? ? the ? thermal ? resistance ? ja ? of ? sot \ 25 ? package ? of ? rs7213 ? is ? 250c/w. ? based ? on ? a ? maximum ? operating ? junction ? temperature ? 125c ? with ? an ? ambient ? of ? 25c, ? the ? maximum ? power ? dissipation ? will ? be: ? w 40 . 0 250 ) 25 125 ( ) t t ( p ca jc a j max = ? = + ? = ? ? thermal ? characteristics ? were ? measured ? using ? a ? double ? sided ? board ? with ? 1?x2? ? square ? inches ? of ? copper ? area ? connected ? to ? the ? gnd ? pin ? for ? ?heat ? spreading?. ? ? dropout ? voltage ? a ? regulator?s ? minimum ? input \ output ? voltage ? differential, ? or ? dropout ? voltage, ? determines ? the ? lowest ? usable ? supply ? voltage. ? in ? battery \ powered ? systems, ? this ? will ? determine ? the ? useful ? end \ of \ life ? battery ? voltage. ? the ? rs7213 ? use ? a ? p \? channel ? mosfet ? pass ? transistor, ? its ? dropout ? voltage ? is ? a ? function ? of ? drain \ to \ source ? on \ resistance ? r ds(on) ? multiplied ? by ? the ? load ? current. ? ? out ) on ( ds out in dropout i r v v v = ? = ?
page ? no. ? : ? 6/9 ds \ rs7213 \ 02 ??? september, ? 2009 ? www.orister.com sot \ 25 ? dimension ? ? notes: ? a. all ? linear ? dimensions ? are ? in ? millimeters. ? b. this ? drawing ? is ? subject ? to ? change ? without ? notice. ? c. body ? dimensions ? do ? not ? include ? mold ? flash ? or ? protrusion. ? d. falls ? within ? jedec ? mo \ 193 ? variation ? ab ? (5 ? pin). ? ? ? ? ? ? ? ? ? ? ? ? ?
page ? no. ? : ? 7/9 ds \ rs7213 \ 02 ??? september, ? 2009 ? www.orister.com sc \ 70 \ 5 ? dimension ? ? ? notes: ? a. all ? linear ? dimensions ? are ? in ? millimeters. ? b. this ? drawing ? is ? subject ? to ? change ? without ? notice. ? c. body ? dimensions ? do ? not ? include ? mold ? flash ? or ? protrusion. ? mold ? flash ? and ? protrusion ? shall ? not ? exceed ? 0.15 ? per ? side. ? d. falls ? within ? jedec ? mo \ 203 ? variation ? aa. ? ? ? ? ? ? ? ? ? ? ?
page ? no. ? : ? 8/9 ds \ rs7213 \ 02 ??? september, ? 2009 ? www.orister.com soldering ? methods ? for ? orister?s ? products ? 1. ? storage ? environment: ? temperature=10 o c~35 o c ? humidity=65%15% ? 2. ? reflow ? soldering ? of ? surface \ mount ? devices ? ? profile ? feature ? sn \ pb ? eutectic ? assembly ? pb \ free ? assembly ? average ? ramp \ up ? rate ? (t l ? to ? t p ) ? <3 o c/sec ? <3 o c/sec ? preheat ? \? temperature ? min ? (ts min ) ? \? temperature ? max ? (ts max ) ? \? time ? (min ? to ? max) ? (ts) ? ? 100 o c ? 150 o c ? 60~120 ? sec ? ? 150 o c ? 200 o c ? 60~180 ? sec ? tsmax ? to ? t l ? ? \? ramp \ up ? rate ? ? <3 o c/sec ? ? <3 o c/sec ? time ? maintained ? above: ? \? temperature ? (t l ) ? \? time ? (t l ) ? ? 183 o c ? 60~150 ? sec ? ? 217 o c ? 60~150 ? sec ? peak ? temperature ? (t p ) ? 240 o c ? +0/ \ 5 o c ? 260 o c ? +0/ \ 5 o c ? time ? within ? 5 o c ? of ? actual ? peak ? temperature ? (t p ) ? 10~30 ? sec ? 20~40 ? sec ? ramp \ down ? rate ? <6 o c/sec ? <6 o c/sec ? time ? 25 o c ? to ? peak ? temperature ? <6 ? minutes ? <8 ? minutes ? 3. ? flow ? (wave) ? soldering ? (solder ? dipping) ? products ? peak ? temperature ? dipping ? time ? pb ? devices. ? 245 o c ? 5 o c ? 5sec ? 1sec ? pb \ free ? devices. ? 260 o c ? +0/ \ 5 o c ? 5sec ? 1sec ? ? ? ? ? ? figure ? 1: ? temperature ? profile ? t p t l ramp-down ramp-up ts max ts min critical zone t l to t p t s preheat t l t p 25 t 25 o c to peak time temperature
page ? no. ? : ? 9/9 ds \ rs7213 \ 02 ??? september, ? 2009 ? www.orister.com ? ? important ? notice: ? ? ? ? orister ? corporation ? orister ? cannot ? assume ? responsibility ? for ? use ? of ? any ? circuitry ? other ? than ? circuitry ? entirely ? embodied ? in ? an ? orister ? product. ? no ? circuit ? patent ? licenses, ? copyrights, ? mask ? work ? rights, ? or ? other ? intellectual ? property ? rights ? are ? implied. ? ? orister ? reserves ? the ? right ? to ? make ? changes ? to ? their ? products ? or ? specifications ? or ? to ? discontinue ? any ? product ? or ? service ? without ? notice. ? except ? as ? provided ? in ? orister?s ? terms ? and ? conditions ? of ? sale, ? orister ? assumes ? no ? liability ? whatsoever, ? and ? orister ? disclaims ? any ? express ? or ? implied ? warranty ? relating ? to ? the ? sale ? and/or ? use ? of ? orister ? products ? including ? liability ? or ? warranties ? relating ? to ? fitness ? for ? a ? particular ? purpose, ? merchantability, ? or ? infringement ? of ? any ? patent, ? copyright ? or ? other ? intellectual ? property ? right. ? in ? order ? to ? minimize ? risks ? associated ? with ? the ? customer?s ? applications, ? adequate ? design ? and ? operating ? safeguards ? must ? be ? provided ? by ? the ? customer ? to ? minimize ? inherent ? or ? procedural ? hazards. ? testing ? and ? other ? quality ? control ? techniques ? are ? utilized ? to ? the ? extent ? orister ? deems ? necessary ? to ? support ? this ? warranty. ? specific ? testing ? of ? all ? parameters ? of ? each ? device ? is ? not ? necessarily ? performed. ?? ? orister ? and ? the ? orister ? logo ? are ? trademarks ? of ? orister ? corporation. ? all ? other ? brand ? and ? product ? names ? appearing ? in ? this ? document ? are ? registered ? trademarks ? or ? trademarks ? of ? their ? respective ? holders. ? ? ? ?
|
