advanced power electronics corp. features descriptioon application for extreme low output voltage guaranteed 300ma output current very low quiescent current at about 40ua 2% output voltage accuracy needs only 1f capacitor for stability thermal shutdown / current limited protection adjusted mode with 0.8v reference voltage low-esr ceramic capacitor for output stability tiny sot-23-5l, sot-23-5lr & sc-70-5l package type rohs compliant high psrr applications dvd/cd-roms, cd/rws wireless devices lcd modules battery power systems card readers xdsl routers ordering / package information data and specifications subject to change without notice 201106154 ape8867 typical application 300ma low dropout linear regulator 1 v shdn vin gnd vout shdn adj c out c in r 1 r 2 vin vout adj ape8867-adj the ape8867 series are low dropout, positive linear regulators with very low quiescent current. the ape8867 can supply 300ma output current with a low dropout voltage & very low output voltage. the ape8867 regulator is able to operate with output capacitors as small as 1f to 10f for stability. other than the current limit protection ape8867 also offers on chip thermal shutdown feature providing protection against overload or any condition when the ambient temperature exceeds the junction temperature. the ape8867 series are available in low-profile, space-saving sot-23-5l, sot-23-5lr & sc-70-5l packages. note : r 1 ,r 2 for adjusted mode only note : to prevent oscillation, it is recommended to use minimum 1uf x7r or x5r dielectric capacitors if ceramics are used as input / output capacitors. figure1. application of the ape8867-adj (top view) sot-23-5l (y5) 3 2 5 4 1 vin gnd shdn adj vout rthja=250 /w rthjc=110 /w (top view) sc-70-5l (u5) 3 2 5 4 1 vin gnd shdn adj vout rthja=600 /w rthjc=180 /w package type y5 : sot-23-5l y5r : sot-23-5lr u5 : sc-70-5l ape8867x (top view) sot-23-5l (y5r) 3 2 5 4 1 vin gnd shdn adj vout rthja=250 /w rthjc=110 /w .
advanced power electronics corp. ape8867 absolute maximum ratings input voltage (vin) --------------------------------------- - 6v power dissipation (sot-23-5l) ----------------------- - 0.4w (sc-70-5l) --------------------------- - 0.16w storage temperature range -------------------------- - -65c to 150c maximum junction temperature ---------------------- 150c recommended operating condition s input voltage (vin) --------------------------------------- - 2.8 to 5.5v operating junction temperature range (t j ) ------ - -40 to 125 o c ambient temperature (t a ) ------------------------------ -40 to 85 o c electrical specifications ( v in =v out +1v or v in =2.8v whichever is greater, c in =1uf, c out =1uf, t a =25 o c, unless otherwise specified) parameter sym test condition min typ max units output voltage accuracy ? v out i o = 1ma -2 - 2 % current limit i limit r load =1 ? 300 - - ma quiescent current i q i o = 0ma - 40 55 a 0.8v v out 2.0v - 1000 - i o =300ma 2.0v < v out 2.8v - 350 - 2.8v < v out 3.3v - 250 - line regulation ? v line i o =1ma, v in =v out +1v to 5v - 1 5 mv load regulation (note 2) ? v load i o =1ma to 300ma - 6 20 mv i o =1ma, c out =1uf, f ripple = 100hz - 68 - i o =1ma, c out =1uf, f ripple = 10khz - 48 - temperature coefficient tc i out = 1ma, v in = 5v - 50 - ppm/ o c thermal shutdown temperature tsd - 160 - o c thermal shutdown hysteresis ? tsd - 25 - o c shutdown pin current i shdn - - 0.1 a shutdown pin voltage (on) v shdn(on) 1.4 - - v shutdown pin voltage (off) v shdn(off) - - 0.4 v note 1 ? the dropout voltage is defined as v in -v out , which is measured when v out drop about 100mv. note 2 ? regulation is measured at a constant junction temperature by using 30ms current pulse and load regulation in the load range fro m 0ma to 300ma. 2 dropout voltage (note 1) v drop mv db psrr ripple rejection .
advanced power electronics corp. pin descriptions pin symbol gnd adj nc shdn vout ape8867 3 block diagram vin ape8867 is stable with an output capacitor 1f to 10f. the larger output capacitor will be required for application with large transit load to limit peak voltage transits, besides could reduce output noise, improve stability, psrr. chip enable (active high) pin description power is supplied to this device from this pin which is required an input filter capacitor. in general, the input capacitor in the range of 1f to 10f is sufficient. the output supplies power to loads. the output capacitor is required to prevent output voltage unstable. the common ground pin no connected for adjusted mode, apply r 1 /r 2 resistor divider with v out to gnd figure 2. block diagram of ape8867 v out = 0.8 x (1+r 1 /r 2 ) .
advanced power electronics corp. application informatio output & input capacitor protection features thermal consideration ape8867 4 the ape8867 series are low dropout linear regulators that could provide 300ma output current at dropout voltage about 300mv. besides, current limit and on chip thermal shutdown features provide protection against any combination of overload or ambient temperature that could exceed j unction temperature. the ape8867 regulator is designed to be stable with a wide range of output capacitors. the esr of the output capacitor affects stability. larger value of the output capacitor decreases the peak deviations and provides to improve transition response for larger current changes. the capacitor types (aluminum, ceramic, and tantalum) have different characterizations such as temperature and voltage coefficients. all ceramic capacitors are manufactured with a variety of dielectrics, each with different behavior across temperature and applications. common dielectrics used are x5r, x7r and y5v. it is recommended to use 1uf to 10uf x5r or x7r dielectric ceramic capacitors with 30 mohm to 50 mohm esr range between device outputs to ground for transient stability. the ape8867 is designed to be stable with low esr ceramic capacitors and higher values of capacitors and esr could improve output stability. so the esr of output capacitor is very importart because it generates a zero to provide phase lead for loop stability. there are no requirements for the esr on the input capacitor, but its voltage and temperature coefficient have to be considered for device application environment. in order to prevent overloading or thermal condition from damaging the device, ape8867 regulator has internal thermal and current limiting functions designed to protect the device. it will rapidly shut off pmos pass element during overloading or over temperature condition. the power handling capability of the device will be limited by maximum operation junction temperature (125c). the power dissipated by the device will be estimated by p d = i out (v in -v out ). the power dissipation should be lower than the maximum power dissipation listed in ?absolute maximum ratings? section. .
advanced power electronics corp. ape8867 typical performance characteristics 5 dropout vs. temperature 0 100 200 300 400 500 -50 0 50 100 150 tem perature ( o c) dropout voltage (mv) i q vs. temperature 41 41.5 42 42.5 43 43.5 44 44.5 45 45.5 46 46.5 -40 -25 0 25 50 75 100 115 tem perature( o c) quiescent current, i q (ua) dropout voltage 0 50 100 150 200 250 300 350 400 1 10 50 100 200 300 i out (m a) dropout voltage(mv) i q vs. v in 44.15 44.65 45.15 45.65 46.15 46.65 4.3 4.5 4.7 5 input voltage, v in (v ) quiescent current, i q (ua) v in vs. i limit 0 50 100 150 200 250 300 350 400 450 500 4 .2 4 .3 4 .4 4 .5 4 .6 4 .7 4 .8 4 .9 5 5 .1 in p u t v o ltag e (v ) current limit (ma) i limit vs. tem perature 420 422 424 426 428 430 432 434 436 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 tem perature ( o c) current limit (ma) .
advanced power electronics corp. ape8867 typical performance characteristics load transient 6 v in =4.3v, i out =10ma~300ma, t a =25 o c psrr (i out =1ma) v out vs. temperature 3.1 3.15 3.2 3.25 3.3 3.35 3.4 -40-20 0 255085105125 tem perature( o c) v out (mv) 1m a 300m a load regulation 3.2 3.22 3.24 3.26 3.28 3.3 3.32 0 1 10 50 100 200 300 i out (m a) v out (v) line regulation 0 0.5 1 1.5 2 2.5 3 3.5 4.3 4.5 4.7 5 v in (v ) v out (v) v out i out .
advanced power electronics corp. ape8867 typical performance characteristics v in =4.3v, v out =3.3v, i out =300ma, 7 power on test enable on test enable off test v in =4.3v, v out =3.3v, i out =0ma, v in =4.3v, v out =3.3v, i out =300ma, power off test power on test power off test v in v out i out v in v out i out v in v out i out v in v out i out v en v out i out v en v out i out .
advanced power electronics corp. ape8867 marking information sot-23-5l sc-70-5l sot-23-5lr 8 part number : h7 date code : ss ss:2004,2008,2012? ss :2003,2007,2011? s s:2002,2006,2010? ss :2001,2005,2009? h7ss ess part number : e date code : ss ss:2004,2008,2012? ss :2003,2007,2011? s s:2002,2006,2010? ss :2001,2005,2009? part number : h7 date code : ss ss:2004,2008,2012? ss :2003,2007,2011? s s:2002,2006,2010? ss :2001,2005,2009? h7ss .
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