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ksd-i0t005-008 1 sj1117xxx adjustable and fixed voltage regulator ? descriptions the sj1117 series of positive adjustable and fixed regulators are designed to provide 1a with high efficiency. all internal circuitry is designed to operate down to 1.1v input to output differential. the sj1117 offers current limiting and ther mal shutdown and over voltage protection. ? features ? adjustable or fixed output(1.2v, 1.5v, 1.8v, 2.5v, 2.85v, 3.3v, 5v) ? output current of 1a ? safe operating area(soa) protection ? over voltage protection (ovp) ? over current protection (ocp) ? thermal shutdown protection ? low dropout, 1.1v typical at 1a output current ? operating temperature range : -40 ~ +125 ? halogen-free package is available ? high level esd protection : 400v(mm), 4kv(hbm) notes 1) c in needed if device is far from filter capacitors 2) c o minimum value required for stability 2 1 2 ) 1 ( r i r r v vout adj adj + + = fig.1 fixed voltage regulator fig.2 adjustable voltage regulator ? typical applications sj1117-xx in out gnd vout + + 10uf 10uf c in c o vin sj1117a in out adj vin vout + + 10uf 10uf 125? 225? c in c o r1 r2
ksd-i0t005-008 2 sj1117xxx ? pin connection (top view) ? block diagram 4 1 2 3 adj/gnd output input pkg : sot-89 output [ x y z adj/gnd output input pkg : sot-223 output adj/gnd output input pkg : to-252 output 1 2 3 adj/gnd output input pkg : to-220f-3l
ksd-i0t005-008 3 sj1117xxx ? ordering information package type v out device name marking adj sj1117-af s17a 1.2v sj1117-12f s1712 1.5v sj1117-15f s1715 1.8v sj1117-18f s1718 2.5v sj1117-25f s1725 2.85v sj1117-285f s17285 3.3v sj1117-33f s1733 sot-89 5.0v sj1117-50f s1750 adj sj1117-aq sj1117a 1.2v sj1117-12q sj111712 1.5v sj1117-15q sj111715 1.8v sj1117-18q sj111718 2.5v sj1117-25q sj111725 2.85v sj1117-285q sj1117285 3.3v sj1117-33q sj111733 sot-223 5.0v sj1117-50q sj111750 adj sj1117-ad sj1117ad 1.2v sj1117-12d sj111712d 1.5v sj1117-15d sj111715d 1.8v sj1117-18d sj111718d 2.5v SJ1117-25D sj111725d 2.85v sj1117-285d sj1117285d 3.3v sj1117-33d sj111733d to-252 5.0v sj1117-50d sj111750d adj sj1117-api sj1117api 1.2v sj1117-12pi sj111712pi 1.5v sj1117-15pi sj111715pi 1.8v sj1117-18pi sj111718pi 2.5v sj1117-25pi sj111725pi 2.85v sj1117-285pi sj1117285pi 3.3v sj1117-33pi sj111733pi to-220f-3l 5.0v sj1117-50pi sj111750pi
ksd-i0t005-008 4 sj1117xxx ? absolute maximum ratings [ta=25 c] characteristic symbol rating unit input voltage v i 16 v p d 1(note1) 0.4 sot-89 p d 2(note2) 0.5 p d 1(note1) 1.0 sot-223 p d 2(note2) 1.4 p d 1(note1) 1.4 to-252 p d 2(note2) 2.7 p d 1(note1) 2.0 power dissipation to-220f-3l p d 2(note3) 24 w junction temperature t j 150 operating temperature range t opr -40 ~ +125 storage temperature range tstg -55 ~ +150 note 1 : t a =25 (no heat sink) note 2 : mounted on a glass epoxy pcb board (25.4 25.4mm). note 3 : t c =25 (used heat sink) ? recommended operating conditions characteristic symbol min. max. unit input voltage v i v o +1.5v v o +7v v output current i o 10 1000 ma ? safe operating area
ksd-i0t005-008 5 sj1117xxx ? electrical characteristics (electrical characteristics at t a =25 and v i =(v o +1.5v), io=10ma, c o =10 f, unless otherwise specified.) characteristic symbol device test condition min (-2%) typ max (+2%) unit sj1117a 1.225 1.25 1.275 sj1117-12 1.176 1.20 1.224 sj1117-15 1.470 1.50 1.530 sj1117-18 1.764 1.80 1.836 sj1117-25 2.450 2.50 2.550 sj1117-285 2.793 2.85 2.907 sj1117-33 3.234 3.30 3.366 output voltage v out sj1117-50 v i = (v o +1.5v) to 7v i o = 10ma to 1000ma 4.900 5.00 5.100 v line regulation (note4) v o( vi) all 1.5v v i -v o 7v i o =10ma - 0.05 0.4 % load regulation (note4) v o( il) all 1.5v v i -v o 7v i o =10ma ~ 1000ma - 0.1 0.5 % quiescent current i q all i o =0 - 5 10 ma minimum load current i l(min) sj1117a vin=2.75v - 1 5 ma adjust pin current i adj sj1117a v i = 2.75v i o = 100ma - 36 90 a adjust pin current change ? i adj sj1117a 2.75v v i 8.25v i o =10ma ~ 1000ma - 1 5 a dropout voltage v drop all i o =1000ma - 1.1 1.25 v ripple rejection ratio rr all v i = v o +3v, i o =500ma v ripple =1v p-p , f=120 ? 60 72 - db current limit i limit all v i = v o +2v 1.1 1.8 - a thermal shutdown t tsd all v i = v o +1.5v i o = 0 to 10ma - 160 - thermal shutdown hysteresis t hys all v i = v o +1.5v i o = 0 to 10ma - 10 - note 4: low duty pulse testing with kelvin connections required.
ksd-i0t005-008 6 sj1117xxx ? electrical characteristic curves 0.01 0.1 1 10 100 0 200 400 600 800 1000 stable region instable region instable region 0 1 2 3 4 5 6 7 8 9 10 -100 -50 0 50 100 150 200 v in =v out +1.5v 0 5 10 15 20 25 30 35 40 45 50 -100 -50 0 50 100 150 200 v in =2.75v i out =0.1a 0.0 0.5 1.0 1.5 2.0 2.5 3.0 -100 -50 0 50 100 150 200 v in =v out +2v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0246 8101214 ta=25 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 -100 -50 0 50 100 150 200 v in =v out +1.5v i out =10ma fig.3 v out vs t a fig.4 i out vs v in -v out output voltage change v out [%] fig.5 i out vs t a fig.6 i adj vs t a fig.7 i q vs t a ambient temperature t a [ ? c] quiescent current i q [ma] adjust pin current i adj [ a] ambient temperature t a [ ] ambient temperature t a [ ] input-output differential voltage v in -v out [v] ambient temperature t a [ ] output short circuit current i out [a] output short circuit current i out [a] fig.8 esr vs i out output current i out [ma] equivalent series resistor esr [ ? ] ta=25
ksd-i0t005-008 7 sj1117xxx ? electrical characteristic curves fig.9 sj1117-285 line transient res p onse fig.10 sj1117-50 line transient res p onse fig.11 sj1117-285 load transient res p onse fig.12 sj1117-50 load transient res p onse output voltage deviation [v] 0.1 -0.1 0 load current [a] 0.5 0 0 120 80 160 40 200 time [ s] output voltage deviation [mv] 20 -20 0 input voltage [v] 4.25 5.25 0 1.2 0.8 1.6 0.4 2.0 time [ m s] cin=1.0uf, cout=33uf iout=0.1a, t a =25 cin=10uf, cout=10uf, vin=5v preload=0.1a, t a =25 output voltage deviation [mv] 20 -20 0 input voltage [v] 6.5 7.5 cin=1.0uf, cout=33uf iout=0.1a, t a =25 0 1.2 0.8 1.6 0.4 2.0 time [ m s] output voltage deviation [v] 0.1 -0.1 0 load current [a] 0.5 0 0 120 80 160 40 200 time [ s] cin=10uf, cout=10uf, vin=7v preload=0.1a, t a =25
ksd-i0t005-008 8 sj1117xxx ? application note input bypass capacitor (c in ) an input capacitor is recommended. a 10 f tantalum capacitor on the input is a suitable bypassing for all applications. adjust terminal bypass capacitor(c adj ) the adjust terminal can be bypassed to ground with a bypass capacitor to impr ove ripple rejection this bypass capacitor prevents ripple from being amp lified as the output volta ge is increased. at any ripple frequency, the impedance of the c adj should less than r1 to prev ent the ripple from being amplified the r1 is the resistor between the output and the adjust pin. output capacitor(c out ) the output capacitor(c out ) is critical in maintaining regulator stability, and must meet required conditions for both minimum amount of capacitance and esr. the minimum c out required is 10 f(tantalum capacitor). any increase of the c out will merely improve the stability and transient response. the esr of the c out should range between 0.3 ? - 22 ? . in the case of the adjustable regulator, when the c adj is used, a larger c out (22 f) is required. output voltage the sj1117 develops a 1.25v reference voltage between the output and the adjust terminal (see fig.9). by placing a resistor between these two terminals, a constant current is caused to flow through r1 and down through r2 to set the overall output voltage. norma lly this current is chosen to be the specified minimum load current. because i adj is very small and constant when compared to the current through r1, it represents a small error and can usually be ignored. for fixed voltage devices r1 and r2 are included in the device. sj1117 in out adj vin vout + + c in c o r1 r2 v ref i adj 1 ) 2 ( 1 r c f adj ripple ? fig.13 basic adjustable regulator ( ) 2 1 2 1 r i r r v v adj ref out + + =
ksd-i0t005-008 9 sj1117xxx ? application note load regulation load regulation will be limited by the resistance of the wire connecting the regulator to the load. the specification for load regulation is measured at the output pin of the device. ne gative side sensing is a true kelvin connection, with the bottom of the output divider return ed to the negative side of the load. although it may not be immediately obvious , best load regulation is obtained when the top of the resistor divider (r1) is returned directly to the output pin of the device(see fig.10). for example, a 5v regulator with 0.05 ? resistance(rp) between the regul ator and load will have a load regulation due to line resistance of (rp x il). if r1 is connected near th e load, the effectiv e line resistance will be rp (1+r2/r1) or in this cas e, it is 4 times worse. in addition, the ground side of the resistor r2 can be returned near the ground of the load to provide remote ground se nsing and improve load regulation. protection diodes diodes between input and output are not usually needed. the internal diode between the output and input pins of the device can withstand microsecond surge currents of 10a to 20a. normal power supply cycling can not generate currents of this magnitude. only with extremel y large output capacitors, such as 1000 f and larger, and with the input pin instantaneously shorted to ground can damage occur. a crowbar circuit at the input of the sj1117 in combination with a large output capacitor could generate currents large enough to cause damage. in this case a diode from output to input is recommended, as shown in figure 11. fig.14 connections for best load regulation fig.15 protection diodes sj1117 in out adj vin vout + 100uf 1n4002 (optional) c out r1 r2 + 10uf c adj
ksd-i0t005-008 10 sj1117xxx ? application note thermal considerations sj1117 series regulator have internal thermal limiti ng circuitry designed to protect the device during overload conditions. for continuous normal load condi tions however, the maxi mum junction temperature rating of 125 must not be exceeded. the thermal resistance for each application will be affected by thermal interactions with other components on the board. some experimentation will be necessary to determ ine the actual value. calculation power dissipation : p d = (v in ? v out ) x (i out ) maximum junction temperature : t j =t a(max) +p d
ksd-i0t005-008 11 sj1117xxx ? typical application fig.16 constant current regulator fig.17 slow turn-on regulator fig.18 1.25v to 10v adjustable regulator with improved ripple rejection fig.19 5v logic regulato r with electronic shutdown sj1117a in out adj vin vout + + r constant current output 10 f 10 f iadj r vref i out + = sj1117a in out adj vin vout + 10uf 1n4001 r1 r2 + 10 f + 10uf sbt2907 50k ? sj1117a in out adj vin vout + 10uf r1 r2 + *c adj + 10u f ( ) 1 2 1 25 . 1 r r v out + = *: c adj is optional, but it will improve ripple rejection. 121 ? 1k ? sj1117a in out adj vin vout + 10uf r1 r2 + 10u f 200 ? 600 ? sbt2222 output control (ttl) 1k ? 1k ? v out(off) = vref
ksd-i0t005-008 12 sj1117xxx ? typical application fig.22 battery backed-up power supply fig.20 adjusting output of fixed regulators fig.21 regulators with reference sj1117-50 in out gnd vin > 12v vout = 5v to 10v + 10uf + + 10u f 1k ? 10u f sj1117-50 in out gnd vin > 9v vout = 7.5v + 10uf + 10u f 2.5v out sj1117-50 in out gnd vin 50 ? + 10 f sj1117-50 in out gnd + 10 f vout 100uf + 5.3v ac line 5.0v battery *r chg *: r chg : select for charge rate. 6.5v
ksd-i0t005-008 13 sj1117xxx ? sot-89 outline dimension (unit : mm) recommend pcb solder land [unit: mm]
ksd-i0t005-008 14 sj1117xxx ? sot-223 outline dimension (unit : mm) recommend pcb solder land [unit: mm]
ksd-i0t005-008 15 sj1117xxx ? to-252 outline dimension (unit : mm) recommend pcb solder land [unit: mm] 4.60 1.50 2 . 5 0 7 . 0 0 7.00
ksd-i0t005-008 16 sj1117xxx ? to-220f-3l outline dimension (unit : mm)
ksd-i0t005-008 17 sj1117xxx the auk corp. products are intended for the use as components in general electronic equipment (offi ce and communication equipmen t, measuring equipment, home appliance, etc.). please make sure that you consult with us before you use these auk corp. products in equipments which require high quality and / or reliability, and in equipments which could have major impact to the welfare of human life(atomic energy control, airplane, spaceship, transportation, combustion control, all types of safet y device, etc.). auk corp. cannot accept liability to any damage which may occur in case these auk corp. products were used in the mentioned equi pments without prior consultation with auk corp.. specifications mentioned in this publicati on are subject to change without notice.
ksd-i0t007 (code) ???? 008 ??? 18/18 (revision) (page) ???? sj1117-xxx ?? ??. (?? ??? ?? esr ?? ??? ??.) ??? ??? 2009.03.25 002 ??. (dpak pkg name ?? ?? ??, pcnb ??? : ?? ????o.) ??? ??? ?? ??? ??? 2008.11.26 000 ????. (sj1117 ?? ??? ?? ??? ?? ??.) ??? ??? ???? ?? 2009.02.12 001 ??? ??? 2009.06.29 004 ??. ( d2pak ??? ?????? ?? d2pak ordering information ?? .) ??? ??? ??. (vout=1.2v ?? d2 -pak ?? line-up.) 2009.05.15 003 ??? ??? 2010.05.27 006 ??. (to-220f-3sl ???? ?? package ??.) ??? ??? ??. (??(pkg to-220f-3l ??) 2009.11.05 005 007 ??. ( ??? 3? ??? ?? ci ?? ) ??? ??? ??? 2010.07.14 2010.12.02 008 ??. ( to252-3l package dimension sp?? ?? ) ??? ? ? ? ? (revision history) ???? (reference) ???? (effective) ?? ? ?? ???? ?? ? ? ? (notification) ? ??? ??? ?? (krb-3002) ? ??????? ??? ?? ??? ?? ?? ???? ?? ?? ? ??? ???. i hereby certify that the attached copy is correct, which has been reproduced from the original copy controlled and approved in accordance with the company regulation (krb-3002) and it's appendix specification center

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