copyright ? anpec electronics corp. rev. a.3 - oct., 2002 apl1565a www.anpec.com.tw 1 anpec reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. 1a low dropout, fast response fixed voltage regulator ? ? ? ? ? guaranteed output voltage accuracy within 2% ? ? ? ? ? fast transient response ? ? ? ? ? load regulation : 1mv typ. ? ? ? ? ? line regulation : 4mv typ. ? ? ? ? ? low dropout voltage : 210mv at i out =1a ? ? ? ? ? current limit : 1a typ. at t j =125 c ? ? ? ? ? on-chip thermal limiting : 150 c typ. ? ? ? ? ? standard 8-pin so power package ? ? ? ? ? very low shutdown current : < 0.5 a ? ? ? ? ? fixed output voltage : 2.5v, 2.8v and 3.3v features applications ? ? ? ? ? peripheral cards ? ? ? ? ? active scsi terminators ? ? ? ? ? low voltage logic supplies ? ? ? ? ? post regulator for switching power supply general description the apl1565a is a low dropout regulators operate from 2.7v to 6v input voltage and deliver up to 1a current capability. in order to obtain lower dropout voltage and faster transient response, which is criti- cal for low voltage applications, the apl1565/a has been optimized. the device is available in fixed output voltages of 2.5v,2.8v and 3.3v. apl1565a dropout voltage is guaranteed at a maximum of 210mv at 1a load. current limit is trimmed to ensure specified output current and controlled short-circuit current. on-chip thermal limiting provides protection against any com- bination of overload that would create excessive junc- tion temperatures. the apl1565a is available in the industry standard 8-pin so power package which can be used in ap- plications where space is limited. pin configuration 1 2 3 45 6 7 8 en v in v out nc gnd gnd gnd gnd apl1565a front view for so - 8
copyright ? anpec electronics corp. rev. a.3 - oct., 2002 apl1565a www.anpec.com.tw 2 pin no. name i/o description (1) note1 en i enable control pin, low = off , high = normal . 2v in i supply voltage input. 3v out o output pin of the regulator. 5(6,7,8) note1 gnd ground pins of the circuitry, and all ground pins must be soldered to pcb with proper power dissipation. symbol parameter rating unit v in , v out input voltage or out voltage 6 v en enable control pin 6 v r th,ja thermal resistance ? junction to ambient 210 c/w p d power dissipation internally limited w t j operating junction temperature c control section 0 to 125 power transistor 0 to 150 t stg storage temperature range -65 to +150 c t l lead temperature (soldering, 10 second) 260 c package code k : sop-8 tem p. range c : 0 to 70 c handling code tu : tube tr : tape & reel voltage code 25 : 2.5v 28 : 2.8v 33: 3.3v apl1565a - handling code tem p. range package code voltage code apl1565a-25k : apl1565a xxxxx25 xxxxx - date code apl1565a-28k : apl1565a xxxxx28 xxxxx - date code apl1565a-33k : apl1565a xxxxx33 xxxxx - date code ordering and marking information absolute maximum ratings pin description
copyright ? anpec electronics corp. rev. a.3 - oct., 2002 apl1565a www.anpec.com.tw 3 apl1565a symbol parameter test conditions min. typ. max. unit v in input voltage 2.7 6 v v out output voltage v out +1.0v< v cc <6.0v, 0ma< i out < i max v out -2 % v out v out +2 % v i limit circuit current limit 1.0 1.2 a reg line line regulation v out +0.5v< v cc <6.0v, 0ma< i out < i max 410mv reg load load regulation v in =v out +1.0v, 0ma< i out < i max 1 6 mv v drop dropout voltage i out =1a, tj = 0~125c 210 400 mv psrr ripple rejection f 1khz, 1vpp at v in = v out +1.0v 55 65 db no load 50 100 i q quiescent current i out =1a 370 300 a shutdown supply current en = low i out =0, v cc =6.0v 0.01 1 a v ih 1.8 v il enable pin threshold v in =3.3v 0.4 v 150 c ots over temperature hysteries 10 c tc output voltage temperature coefficient 50 ppm/ c electrical characteristics unless otherwise noted these specifications apply over full temperature , v in =3.6v, c in =c out =4.7uf, en=v in , t j =0 to 125 c . typical values refer to t j =25 c . application circuit apl1565a in out gnd v in =5v c out 10uf v out =3.3v c in 10f en on off 5v to 3.3v regulation with enable function
copyright ? anpec electronics corp. rev. a.3 - oct., 2002 apl1565a www.anpec.com.tw 4 reverse current protection the apl1565a have an internal reverse protection, it does not need an external schottky diode to con- nect the regulator input and output. if the output volt- age is forced above the input voltage by more than 11mv, the ic will be shutdown and the ground pin current is below 0.1ua. application information capacitor selection and regulator stability the apl1565a use at least a 4.7 f capacitor on the input. this capacitor can use aluminum, tantalum or ceramic capacitors. input capacitor with large val- ues and low esr provide better psrr and line-tran- sient response. the output capacitor also can use aluminum, tantalum or ceramic capacitors, and a minimum value of 10 f and esr above 0.06 ? is recommended. a larger output capacitor can reduce noise and improve load-transient response, stability and psrr. the apl1565a load-transient response graphs in typical characteristics show the transient response. a step change in the load current from 0ma to 1a at 1us will cause a 100mv transient spike. larger out- put capacitor and lower esr can reduce transient spike. load-transient considerations the minimum input-output voltage difference (dropout) determines the lowest usable supply voltage. in battery-powered systems, this will deter- mine the useful end-of-life battery voltage. because the apl1565a use a p-channel mosfet pass transistor, the dropout voltage is a function of drain- to-source on-resistance (r ds(on) ) multiplied by the load current. input-output (dropout)voltage current limit the apl1565a have a current limit protection. the ouptut voltage will drop close to zero volt, when load current reaches the limit, and then the load current will be limited at 150ma after output voltage is below 0.7v. when the load current back to the value where limiting started, the output voltage and current will return to normal value. when output is shorted to ground, the apl1565/a will keep short circuit current at 150ma . thermal protection limits total power dissipation in the device. when the junction temperature exceeds t j =+150 , the thermal sensor generates a logic sig- nal to turn off the pass transistor and allows ic to cool. when the ic?s junction temperature is down by 10 , the thermal sensor will turn the pass transistor on again, resulting in a pulsed output during continu- ous thermal protection. thermal protection is de- signed to protect it in the event of fault conditions. for continuous operation, do not exceed the abso- lute maximum junction temperature of t j =+150 . thermal protection
copyright ? anpec electronics corp. rev. a.3 - oct., 2002 apl1565a www.anpec.com.tw 5 application information (cont.) operating region and power dissi- pation the thermal resistance of the case to circuit board, and the rate of air flow all control the apl1565a?s maximum power dissipation. the power dissipation across the device is p d = i out (v in -v out ) and the maxi- mum power dissipation is: p dmax = (t j -t a ) / ( jc + ca ) where t j -t a is the temperature difference between the junction and ambient air, jc is the thermal re- sistance of the package, and ca is the thermal re- sistance through the printed circuit board, copper traces, and other materials to the ambient air. the gnd pin of the apl1565a provide an electrical connection to ground and channeling heat away. if power dissipation is large, connect the gnd pin to ground using a large pad or ground plane, can im- prove the problem of over heat of ic.
copyright ? anpec electronics corp. rev. a.3 - oct., 2002 apl1565a www.anpec.com.tw 6 package information millimeters inches dim min. max. min. max. a 1.35 1.75 0.053 0.069 a1 0.10 0.25 0.004 0.010 d 4.80 5.00 0.189 0.197 e 3.80 4.00 0.150 0.157 h 5.80 6.20 0.228 0.244 l 0.40 1.27 0.016 0.050 e1 0.33 0.51 0.013 0.020 e2 1.27bsc 0.50bsc 18 8 h e e1 e2 0.015x45 d a a1 0.004max. 1 l sop-8 pin ( reference jedec registration ms-012)
copyright ? anpec electronics corp. rev. a.3 - oct., 2002 apl1565a www.anpec.com.tw 7 physical specifications pre-heat temperature 183 c peak temperature time temperature classification reflow profiles convection or ir/ convection vpr average ramp-up rate(183 c to peak) 3 c/second max. 10 c /second max. preheat temperature 125 25 c) 120 seconds max temperature maintained above 183 c 60 ? 150 seconds time within 5 c of actual peak temperature 10 ?20 seconds 60 seconds peak temperature range 220 +5/-0 c or 235 +5/-0 c 215-219 c or 235 +5/-0 c ramp-down rate 6 c /second max. 10 c /second max. time 25 c to peak temperature 6 minutes max. package reflow conditions pkg. thickness 2.5mm and all bgas pkg. thickness < 2.5mm and pkg. volume 350 mm3 pkg. thickness < 2.5mm and pkg. volume < 350mm3 convection 220 +5/-0 c convection 235 +5/-0 c vpr 215-219 c vpr 235 +5/-0 c ir/convection 220 +5/-0 c ir/convection 235 +5/-0 c terminal material solder-plated copper (solder material : 90/10 or 63/37 snpb) lead solderability meets eia specification rsi86-91, ansi/j-std-002 category 3. reference jedec standard j-std-020a april 1999 reflow condition (ir/convection or vpr reflow)
copyright ? anpec electronics corp. rev. a.3 - oct., 2002 apl1565a www.anpec.com.tw 8 reliability test program test item method description solderability mil-std-883d-2003 245 c , 5 sec holt mil-std-883d-1005.7 1000 hrs bias @ 125 c pct jesd-22-b, a102 168 hrs, 100 % rh , 121 c tst mil-std-883d-1011.9 -65 c ~ 150 c, 200 cycles esd mil-std-883d-3015.7 vhbm > 2kv, vmm > 200v latch-up jesd 78 10ms , i tr > 100ma carrier tape a j b t2 t1 c t ao e w po p ko bo d1 d f p1 application a b c j t1 t2 w p e 330 162 +1.5 12.75+ 0.15 2 0.5 12.4 0.2 2 0.2 12 0. 3 8 0.1 1.75 0.1 f d d1 po p1 ao bo ko t sop- 8 5.5 1 1.55 +0.1 1.55+ 0.25 4.0 0.1 2.0 0.1 6.4 0.1 5.2 0. 1 2.1 0.1 0.3 0.013
copyright ? anpec electronics corp. rev. a.3 - oct., 2002 apl1565a www.anpec.com.tw 9 customer service anpec electronics corp. head office : 5f, no. 2 li-hsin road, sbip, hsin-chu, taiwan, r.o.c. tel : 886-3-5642000 fax : 886-3-5642050 taipei branch : 7f, no. 137, lane 235, pac chiao rd., hsin tien city, taipei hsien, taiwan, r. o. c. tel : 886-2-89191368 fax : 886-2-89191369 cover tape dimensions application carrier width cover tape width devices per reel sop- 8 12 9.3 2500
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