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ap7165 600ma low dropout regulator with pok ap7165 rev. 1 1 of 11 october 2007 www.diodes.com ? diodes incorporated ? wide input voltage range: 2.2v ? 5.5v ? 300mv very low dropout at 500ma load ? very low quiescent current (i q ): 125a typical ? adjustable output voltage range: 0.8v to 5.0v ? very fast transient response ? high psrr ? accurate voltage regulation ? current limiting and short circuit protection ? thermal shutdown protection ? stable with any type output capacitor 4.7f ? ambient temperature range -40oc to 85c ? dfn3030-10: available in ?green? molding compound (no br, sb) ? lead free finish/rohs compliant (note 1) the ap7165 is a 600ma, adjustable output voltage, ultra-low dropout linear regulator. the device includes pass element, error amplifier, band-gap reference, current limit and thermal shutdown circuitry. the device is turned on when en pin is set to logic high level. a power-ok (pok) output is available for power sequence control. the characteristics of the low dropout voltage and low quiescent current make it suitable for low to medium power applications, for example, laptop computers, audio and video applications, and battery powered devices. the typical quiescent current is approximately 125a. built-in current-limit and thermal-shutdown functions prevent ic from damage in fault conditions. the ap7165 is available in dfn3030-10 package. ? servers and laptops ? smart phone and pda ? mp3/mp4 ? bluetooth headset ? low and medium power applications ? fpga and dsp core or i/o power ordering information ap 7165 - xx x x packing package g : green -7 : taping fn : dfn3030-10 lead free note: 1. rohs revision 13.2.2003. glass and high temperature solder exemptions applied, see eu directive annex notes 5 and 7. 7? tape and reel device package code packaging (note 2) quantity part number suffix AP7165-FN fn dfn3030-10 3000/tape & reel -7 note: 2. pad layout as shown on diodes inc. suggested pad layout document ap02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. features general description applications
ap7165 600ma low dropout regulator with pok ap7165 rev. 1 2 of 11 october 2007 www.diodes.com ? diodes incorporated pin assignments ( top view ) fb en in gnd out pok 1 2 5 nc in 3 4 6 8 7 10 9 nc out dfn3030-10 pin descriptions name pin no. description in 1, 2 voltage input pins, to be tied together externally. bypass to ground through at least 1 f capacitor. pok 3 power-ok output, active-high open-drain en 5 enable input, active high gnd 6 ground fb 8 output feedback out 9, 10 voltage output pins, to be tied together externally. bypass to ground through at least 4.7 f ceramic capacitor nc 4, 7 no connection block diagram in en gnd fb out gate driver 0.8v 0.744v pok current limit and thermal shutdown
ap7165 600ma low dropout regulator with pok ap7165 rev. 1 3 of 11 october 2007 www.diodes.com ? diodes incorporated typical application circuit 1f in gnd en out enable fb 10f v in v out pok 100kohm r 1 r 2 ap7165 ? ? ? ? ? ? ? ? += 2 1 1 r r vv ref out absolute maxi mum ratings symbol parameter ratings unit esd hbm human body model esd protection 4 kv esd mm machine model esd protection 300 v v in input voltage 7 v out, fb, pok, en voltage v in + 0.3 v continuous load current internal limited t jmax maximum junction temperature 150 c t st storage temperature range -65 ~150 c p d power dissipation (note 3,5) dfn3030-10 3.0 w note: 3. ratings apply to ambient temperature at 25c recommended oper ating conditions symbol parameter min max unit v in input voltage 2.2 5.5 v i out output current 0 600 ma t a operating ambient temperature -40 85 c
ap7165 600ma low dropout regulator with pok ap7165 rev. 1 4 of 11 october 2007 www.diodes.com ? diodes incorporated electrical characteristics (t a = 25 o c, v in = v out +1v, c in = 1f, c out = 10f, v en = v in , unless otherwise stated) symbol parameter test conditions min typ. max unit i q input quiescent current i out = 0 ? 125 170 a i shdn input shutdown current v en = 0v, i out = 0 (note 4) -1 0.01 1 a v dropout dropout voltage v out 1.5v, i ou t = 500ma 300 400 mv v ref fb reference voltage 0.8 v i fb fb leakage ? 0.01 1 a v out output voltage total accuracy -2.5 2.5 % out in out v v v / line regulation v in = v out +1v to 5.5v, i out = 1ma 0.015 %/v v out / v out load regulation i out from 1ma to 500ma -1.0 1.0 % t st start-up time, from en high to pok high v en = 0v to 2.0v, i out = 100ma, v in = 3.3v 170 s psrr power supply rejection ratio 1khz, v in = 3.3v, v out = 1.2v, i out = 0ma 60 db i limit current limit v out = 1.8v, r out = 0.5 600 950 ma i short short-circuit current v in = 3.3v, v out < 0.2v 380 ma v il en input logic low voltage 0.4 v v ih en input logic high voltage 1.4 v i en en input leakage v en = 0v or 5.5v ? 0.01 1 a v ol pok output low voltage sink 2ma 100 200 mv v pok_th_up output voltage (rising) pok threshold fb (or out for fixed version) rising 87% 92% 97% v ref v pok_hys output voltage pok hysteresis 4% v ref pok deglitch v in = 3.3v, v out = 1.2v 150 s i pok_lk pok leakage current v pok = 5.5v ? 0.01 1 a t shdn thermal shutdown threshold 150 c t hys thermal shutdown hysteresis 25 c ja thermal resistance junction-to-ambient dfn3030-10 (note 5) 40 o c/w note: 4. pok pin must be disconnected from in pin. 5. test condition for dfn3030-10: device mounted on fr-4 2-layer board, 2oz copper, with minimum recommended pad on top layer and 6 vias to bottom layer 1.0?x1.5? ground plane.
ap7165 600ma low dropout regulator with pok ap7165 rev. 1 5 of 11 october 2007 www.diodes.com ? diodes incorporated typical performance characteristics output voltage vs. temperature 3.20 3.25 3.30 3.35 3.40 -50 -25 0 25 50 75 100 125 temperature ( o c) output voltage (v) vout=3.3v output voltage vs. temperature 1.70 1.75 1.80 1.85 1.90 -50-250 255075100125 temperature ( o c) output voltage (v) vout=1.8v quiescent current vs. input voltage 90 100 110 120 130 140 150 160 170 2 . 53 . 03 . 54 . 04 . 55 . 05 . 5 input voltage (v) quiescent current (ua) iout=0ma iout=300ma quiescent current vs. input voltage 90 100 110 120 130 140 150 160 170 2.5 3.0 3.5 4.0 4.5 5.0 5.5 input voltage (v) quiescent current (ua) iout=0ma iout=300ma iout=600ma quiescent current vs. temperature 70 80 90 100 110 120 130 140 150 -50 -25 0 25 50 75 100 125 temperature ( o c) quiescent current (ua) vin=2.2v, vout=1.0v vin=3.3v, vout=1.2v vin=3.3v, vout=1.8v vin=5.0v, vout=3.3v quiescent current vs. i out 100 110 120 130 140 150 0.0 0.1 0.2 0.3 0.4 0.5 0.6 i out (a) quiescent current (ua) vin=2.5v vin=3.3v v out =1.8v v out =1.2v v out =1.8v
ap7165 600ma low dropout regulator with pok ap7165 rev. 1 6 of 11 october 2007 www.diodes.com ? diodes incorporated typical performanc e characteristics (continued) reference voltage vs. temperature 0.780 0.785 0.790 0.795 0.800 0.805 0.810 -50 -25 0 25 50 75 100 125 temperature ( o c) reference voltage (v) vin=2.2v vin=3.3v vin=5.5v dropout voltage vs. i out 0 50 100 150 200 250 300 350 400 0 100 200 300 400 500 600 i out (ma) dropout voltage (mv) 25c 90c -45c line regulation -0.10 -0.05 0.00 0.05 0.10 2 . 53 . 03 . 54 . 04 . 55 . 05 . 5 v in (v) change in v out (%/v) 25c 85c -40c load regulation 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.0 0.1 0.2 0.3 0.4 0.5 0.6 i out (a) change in v out (%) 25c 85c -40c current limit vs. temperature 0.90 0.92 0.94 0.96 0.98 1.00 1.02 1.04 1.06 1.08 -50 -25 0 25 50 75 100 temperature ( o c) current limit (a) vin=2.8v, vout=1.8v vin=3.3v, vout=1.8v psrr (v out =1.2v) -90 -80 -70 -60 -50 -40 100 1000 10000 100000 frequency (hz) psrr (db) v out =1.2v, i out =1ma v in =2.5v, v out =1.2v v out =3.3v
ap7165 600ma low dropout regulator with pok ap7165 rev. 1 7 of 11 october 2007 www.diodes.com ? diodes incorporated typical performanc e characteristics (continued) line transient response time (50us/div) line transient response time (50us/div) output load transient response (v out =1.2v) time (100us/div) output load transient response (v out =1.8v) time (100us/div) start-up time (v out =1.2v, i out =0.1a) time (50us/div) start-up time (v out =1.2v, i out =600ma) time (50us/div) v in 1v/div v out 50mv/div v in =3.3v to 4.4v c out =10uf (ceramic) i out =200ma c out =470uf (electrolytic) 50mv/div 200ma/div 50ma 600ma 1a/us c out =10uf (ceramic) c out =1uf (ceramic) v out i out v in 1v/div v out 50mv/div v in =4.4v to 3.3v c out =10uf (ceramic) i out =200ma c out =470uf (electrolytic) 50mv/div 200ma/div 50ma 600ma 1a/us c out =10uf (ceramic) c out =1uf (ceramic) v out i out v en 2v/div v out 1v/div v pok 2v/div c out =10uf (ceramic) v en 2v/div v out 1v/div v pok 2v/div c out =10uf (ceramic)
ap7165 600ma low dropout regulator with pok ap7165 rev. 1 8 of 11 october 2007 www.diodes.com ? diodes incorporated typical performance characteristics (continued) short circuit current vs. input voltage 350 360 370 380 390 400 410 420 2 . 02 . 53 . 03 . 54 . 04 . 55 . 0 input voltage (v) short circuit current (ma) short circuit current vs. temperature 300 350 400 450 500 -50-25 0255075 temperature ( o c) short circuit current (ma) current limit protection (v out =1.8v) time (50us/div) current limit & short circuit protection (v out =0.8v) time (500us/div) short circuit protection (v out =1.8v) time (2ms/div) short circuit recovery (v out =1.8v) time (50us/div) v out =1.2v v out =1.2v v out 500mv/div i out 500ma/div current limit protection short circuit protection v out 500mv/div i out 500ma/div v out 500mv/div i out 500ma/div v out 500mv/div i out 1a/div current limit protection short circuit protection
ap7165 600ma low dropout regulator with pok ap7165 rev. 1 9 of 11 october 2007 www.diodes.com ? diodes incorporated 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 should 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 ap7165 is designed to have excellent transient response for most applications with a small amount of output capacitance. the ap7165 is stable for all available types and values of output capacitors 4.7 f. the device is also stable with multiple capacitors in parallel, which can be of any type of value. additional capacitance helps to reduce undershoot and overshoot during transient. this capacitor should be placed as close as possible to out and gnd pins for optimum performance. adjustable operation the ap7165 provides output voltage from 0.8v to 5.0v through external resistor divider as shown below. in gnd en out enable fb v in v out pok 100kohm r 1 r 2 ap7165 c in c out the output voltage is calculated by: ? ? ? ? ? ? ? ? += 2 1 ref out r r 1vv where v ref =0.8v (the internal reference voltage). rearranging the equation will give the following equation to find the approximate resistor divider values: ? ? ? ? ? ? ? ? ? = 1 v v rr ref out 21 to maintain the stability of the internal reference voltage, r 2 needs to be kept smaller than 250k . no load stability other than external resistor divider, no minimum load is required to keep the device stable. the device will remain stable and regulated in no load condition. enable/shutdown operation the ap7165 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 . power-ok the power-ok (pok) pin is an active high open-drain output. it can be connected to any 5.5v or lower rail through an external pull-up resistor. the recommended sink current of pok pin is up to 4ma, so the pull-up resistor for pok should be in the range of 10k ? to 1m ? . if output voltage monitoring is not needed, the pok pin can be left floating. 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 950ma (600a min) to prevent over-current and to protect the regulator from damage due to overheating. short circuit protection when out pin is short-circuited to gnd or out pin voltage is less than 200mv, short circuit protection will be triggered and clamp the output current to approximately 380ma. this feature protects the regulator from over-current and damage due to overheating.
ap7165 600ma low dropout regulator with pok ap7165 rev. 1 10 of 11 october 2007 www.diodes.com ? diodes incorporated application note (continued) low quiescent current the ap7165, consuming only around 125a for all input range and output loading, provides great power saving in portable and low power applications. wide output range the ap7165, with a wide output range of 0.8v to 5.0v, provides a versatile solution for many portable and low power applications. thermal shutdown protection thermal protection disables the output when the junction temperature rises to approximately +150c, allowing the device to cool down. when the junction temperature reduces to approximately +125c the output circuitry is enabled again. depending on power dissipation, thermal resistance, and ambient temperature, the thermal protection circuit may cycle on and off. this cycling limits the heat dissipation of the regulator, protecting it from damage due to overheating. power dissipation the device power dissipation and proper sizing of the thermal plane that is connected to the thermal pad is critical to avoid thermal shutdown and ensuring reliable operation. power dissipation of the device depends on input voltage and load conditions and can be calculated by: out out in d xi)vv(p ? = the ap7165 is available in the dfn3030-10 package with exposed pad, which is the primary conduction path for heat to the printed circuit board (pcb). the pad can be connected to ground or be left floating; however, to ensure the device will not overheat, it should be attached to an appropriate amount of copper pcb area. however, the maximum power dissipation that can be handled by the device depends on the maximum junction to ambient thermal resistance, maximum ambient temperature, and maximum device junction temperature, which can be approximated by the equation below: ja a a d r )tc145( )t(max@p ?+ = marking information (1) dfn3030-10 y : year 0~9 m : month a~l ( top view ) x : g : green y m x xx xx : b2 : ap7165 part number package identification code ap7165 dfn3030-10 b2
ap7165 600ma low dropout regulator with pok ap7165 rev. 1 11 of 11 october 2007 www.diodes.com ? diodes incorporated package information (all dimensions in mm) (1) dfn3030-10 bottom view side view 0.57/0.60 0/0.05 0.15typ. 0.10 c 0.08 c seating plane c 2.9/3.1 2.3/2.5 2.9/3.1 0.50typ. 0.2/0.3 1.5/1.7 (pin #1 id) a b 0.10 c ab 0.25 a 2x- 0.25 b 2x- 0.25/0.55 r 0 . 3 0 0 0.375typ. top mark note: 6. all dimensions are in millimeters. angles are in degrees. 7. coplanarity applies to the exposed heat sink slug as well as the terminals. 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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