ap7217 500ma cmos ldo ap7217 rev. 1 1 of 7 october 2007 www.diodes.com ? diodes incorporated ? very low dropout voltage ? low current consumption: typ. 50 a ? output voltage: 3.3v ? guaranteed 500ma (min) output ? input range up to 5.5v ? current limiting ? stable with either electrolytic capacitor or low-esr mlcc (multi-layer ceramic capacitor) low temperature coefficient ? sop-8l: available in ?green? molding compound (no br, sb) ? lead free finish / rohs compliant (note 1) the ap7217 low-dropout linear regulator operates from a 3.3v to 5.5v supply and delivers a guaranteed 500ma (min) continuous load current. the high-accuracy output voltage is preset to an internally trimmed voltage. an active-low open-drain reset output remains asserted for at least 20ms (typ) after output voltage reaches v df . the space-saving sop-8l package is suitable for ?pocket? and hand-held applications. ? hd/blueray dvd & mp3/4 players ? mobile handsets and smartphones ? digital still camera ? hand-held computers ap 7217 - xx x x x s : sop-8l output voltage package 33 : 3.3v -u : tube packing lead free g : green -13 : tape & reel note: 1. rohs revision 13.2.2003. glass and high temperature solder exemptions applied, see eu directive annex notes 5 and 7. tube 13? tape and reel device package code packaging (note 2) quantity part number suffix quantity part number suffix AP7217-XXS s sop-8l 100 -u 2500/tape & reel -13 note: 2. pad layout as shown on diodes inc. suggested pad layout document ap02001, which can be on our website at http://www.diodes.com/datasheets/ap02001.pdf . features general description applications ordering information
ap7217 500ma cmos ldo ap7217 rev. 1 2 of 7 october 2007 www.diodes.com ? diodes incorporated 1 2 3 4 6 5 en sop-8l ap7217 ( top view ) vr out nc nc v in gnd nc vd out 8 7 pin name pin no. function nc 1 no connection vr out 2 voltage output nc 3 no connection v in 4 supply voltage nc 5 no connection vd out 6 v d output (reset on i/p) gnd 7 ground en 8 enable (v r on/off) block diagram enable bandgap current limit - error amp + + - 1.2v r3 r4 vd comp. r1 r2 en vd out gnd vr out v in on off absolute maxi mum ratings symbol parameter rating unit esd hbm human body model esd protection 2 kv esd mm machine model esd protection 450 v v in input voltage +6 v i out output current p d / (v in -v o ) ma vr out output voltage gnd - 0.3 ~ v in + 0.3 v t j operating junction temperature range -40 to +125 oc t j(max) maximum junction temperature 150 oc p d internal power dissipation 1.2 w pin assignments pin descriptions
ap7217 500ma cmos ldo ap7217 rev. 1 3 of 7 october 2007 www.diodes.com ? diodes incorporated recommended oper ating conditions symbol parameter min max unit v in input voltage 3.3 5.5 v i out output current 0 500 ma t a operating ambient temperature -40 85 oc electrical characteristics (t a = 25 c, c in = 1f, c out = 1f, v en = 2v, unless otherwise noted) symbol parameter test conditions min typ. max unit i q quiescent current i o = 0ma - 50 70 a i stb standby current ven = off v in = 5.0v 15 30 a output voltage accuracy i o = 30ma, v in = 5v 3.234 3.300 3.366 v vr out vr out temperature coefficient -40 c to 85 c, i out = 30ma 100 ppm / o c v dropout dropout voltage i out = 100ma 100 250 mv i out output current v in = 5.3v 500 ma i limit current limit v in = 5.3v 600 ma i short short circuit current v in = 5.3v 50 ma v line / v in /vr out line regulation 4.3v v in 5.5v; i out = 30ma 0.01 0.2 %/v vr out load regulation 1ma i out 100ma, v in = 5.3v 15 50 mv psrr power supply rejection v in = 4.3v+0.5vp-pac, i out = 50ma f= 1khz 55 db v eh output on 1.6 v v el en input threshold output off 0.25 v i en enable pin current -0.1 0.1 a v df detect fall voltage 3.83 3.91 3.98 v v hysteresis v d hysteresis range v df x1.02 v df x1.05 v df x1.08 v i vd out vd supply current vd out = 0.5v v in = 2.0v 3.0v 20 30 ma t rp v dout delay time v in = 1.8v to vdf+1v 10 20 40 msec ja thermal resistance sop-8l (note 3) 134 oc/w jc thermal resistance sop-8l (note 3) 28 oc/w note: 3. test conditions for sop-8l: devices mounted on fr-4 pc board, mrp, 2oz copper layout, calibrate at t j =150 oc, measure at t a =25oc, minimum recommended pad layout
ap7217 500ma cmos ldo ap7217 rev. 1 4 of 7 october 2007 www.diodes.com ? diodes incorporated typical application ap7217 v in vd out vr out en gnd 100k vd out u1 4 6 2 8 v in c in 1uf 7 c out 1uf on off vr out typical performance characteristics vcc vs. quiescent current 0 10 20 30 40 50 60 70 80 90 100 3.6 4 4.3 5 5.5 vcc (v) iccq (ua) iout vs. dropout voltage 0 100 200 300 400 500 600 700 800 900 1000 30 100 300 500 iout (ma) dropout (mv) delay time vs. temperature 15 16 17 18 19 20 21 22 23 24 -40 25 85 100 temperature( o c) delay time (ms) vcc vs. standby current 0 10 20 30 40 50 60 70 3.6 4 4.3 5 5.5 vcc (v) i-standby (ua)
ap7217 500ma cmos ldo ap7217 rev. 1 5 of 7 october 2007 www.diodes.com ? diodes incorporated typical performanc e characteristics (continued) load transient response (v in =4.3v, i out =0~500ma) load transient response (v in =5.5v, i out =0~500ma) load transient response (v in =4.3v, i out =100~300ma) load transient response (v in =5.5v, i out =100~300ma) v in vr out i out v in vr out i out i out i out vr out vr out v in v in
ap7217 500ma cmos ldo ap7217 rev. 1 6 of 7 october 2007 www.diodes.com ? diodes incorporated timing diagram 20msec-typ. v in vd out en vr out 1.8v t rp application note input capacitor a 1 f ceramic capacitor is recommended to connect between in and gnd pins to decouple input power supply glitch and noise. the amount of the capacitance may be increased without limit. a lower esr (equivalent series resistance) capacitor allows the use of less capacitance, while higher esr type requires more capacitance. this input capacitor must be located as close as possible to the device to assure input stability and less noise. for pcb layout, a wide copper trace is required for both in and gnd. output capacitor the output capacitor is required to stabilize and help the transient response of the ldo. the ap7217 is designed to have excellent transient response for most applications with a small amount of output capacitance. the ap7217 is stable with any small ceramic output capacitors of 1.0 f or higher value, and the temperature coefficients of x7r or x5r type. additional capacitance helps to reduce undershoot and overshoot during transient. for pcb layout, the output capacitor must be placed as close as possible to out and gnd pins, and keep the leads as short as possible. enable/shutdown operation the ap7217 is turned on by setting the en pin high, and is turned off by pulling it low. if this feature is not used, the en pin should be tied to in pin to keep the regulator output on at all time. to ensure proper operation, the signal source used to drive the en pin must be able to swing above and below the specified turn-on/off voltage thresholds listed in the electrical characteristics section under v il and v ih . vr out vd out en=0 0v en=1 3.3v current limit protection when output current at out pin is higher than current limit threshold, the current limit protection will be triggered and clamp the output current to approximately 600ma to prevent over-current and to protect the regulator from damage due to overheating. short circuit protection when vrout pin is shorted to gnd or vrout voltage is less than 200mv, short circuit protection will be triggered and clamp the output current to approximately 50ma. vd out (reset output) ---open-drain active-low reset output--- in general, vd out is pulled up by a resistor (100kohm) to v in . the ap7217 microprocess (up) supervisory circuitry asserts a guaranteed logic-low reset during power-up and power-down. reset is asserted asserts when v in is below the reset threshold and remain asserted for at least t rp after v in rises above the reset threshold. as long as v in is lower than the reset threshold, vd out remains at logic "0". when v in become higher than v th , a logic "1" is asserted after a time delay defined by t rp .
ap7217 500ma cmos ldo ap7217 rev. 1 7 of 7 october 2007 www.diodes.com ? diodes incorporated marking information 8 5 ( top view ) logo part no. internal code year : "07" = 2007 "08" = 2008 xth week : 01~52 ~ 14 7217-33 yy ww x x g : green sop-8l package information (unit: mm) package type: sop-8l 1.27typ 0.3/0.5 7~9 4.80/5.30 3.70/4.10 5.79/6.20 0.20typ 7~9 3.70/4.10 0.38/1.27 0.08/0.25 gauge plane 0.254 seating plane 0.35max. 45 detail "a" detail "a" 1.30/1.50 1.75max. land pattern recommendation 0.78 (unit: mm) 6x-1.27 8x-1.55 8x-0.60 5.4 important notice life support diodes incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or ot her changes without further notice to any product herein. diodes incorporated does not assume any liability arising out of the application or use of any pr oduct described herein; neither does it convey any license under its patent rights, nor the rights of others. the user of products in such applications shall a ssume all risks of such use and will agree to hold diodes incorporated and all the companies whose products are represented on our website, harmless against all dam ages. diodes incorporated products are not authorized for use as critical components in life support devices or systems without the e xpressed written approval of the president of diodes incorporated.
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