ap1120 dual 1a low dropout positive regulator ap1120 rev. 2 1 of 7 february 2009 www.diodes.com ? diodes incorporated lead-free ? 1.3v maximum dropout at full load current ? fast transient response ? output current limiting for each channel ? built-in thermal shutdown each channel ? good noise rejection ? dual output ch1=3.3v, ch2=2.5v (1.8v for b version) ? lead free package: sop-8l ? lead free finish/ rohs compliant (note 1) ap1120 series are low dropout positive regulator to provide 1a output current capability. the product is specifically designed to provide well-regulated supply for low voltage ic applications such as high-speed bus termination and low current 3.3v/2.5v or 3.3v/1.8v logic supply. ap1120 series are guaranteed to have <1.3v dropout at full load current making it ideal to provide well regulated outputs dual channels with up to 18v input supply. ? pc peripheral ? communication ap 1120 s x l - 13 13 : tape & reel lead free l : lead free packing vout blank : ch1=3.3v ch2=2.5v b : ch1=3.3v ch2=1.8v package s : sop-8l device package code packaging (note 2) 13? tape and reel quantity part number suffix AP1120SXL-13 s sop-8l 2500/tape & reel -13 notes: 1. eu directive 2002/95/ec (rohs). all applicable rohs exemptions applied. please visit our website at http://www.diodes.com/products/lead_free.html . 2. pad layout as shown on diodes inc. suggested pad layout document ap02001, which can be on found our website at http://www.diodes.com/datasheets/ap02001.pdf . features general description applications ordering information
ap1120 dual 1a low dropout positive regulator ap1120 rev. 2 2 of 7 february 2009 www.diodes.com ? diodes incorporated pin assignments gnd1 vin 2 vin 1 gnd 2 1 2 3 4 8 7 6 5 2.5v (1.8v) 3.3v 2.5v (1.8v) 3.3v sop-8l ap1120 ( top view ) pin descriptions pin name description gnd1/2 ground 3.3v (vout1) the output of the regulator. a minimum of 10uf capacitor (0.15 ? esr 20 ? ) must be connected from this pin to ground to insure stability. 2.5v/1.8v (vout2) vin1/2 the input pin of regulator. typically a large storage capacitor (0.15 ? esr 20? ) is connected from this pin to ground.
ap1120 dual 1a low dropout positive regulator ap1120 rev. 2 3 of 7 february 2009 www.diodes.com ? diodes incorporated block diagram 2 thermal shutdown 7,8 vout 1 1.25v + + current limit vin 1 + + 1 gnd 1 4 thermal shutdown 5,6 vout 2 1.25v + + current limit vin 2 + + 3 gnd 2 - - - - typical circuit 5v 3.3v/1a (3.3v/2.5v dual output ) c2 100uf vin1 3.3v gnd1 gnd2 vin2 3.3v 2.5v 2.5v c1 100uf c3 100uf 2.5v/1a
ap1120 dual 1a low dropout positive regulator ap1120 rev. 2 4 of 7 february 2009 www.diodes.com ? diodes incorporated absolute maxi mum ratings symbol parameter rating unit v in dc supply voltage -0.3 to 18 v v p d power dissipation internally limited t st storage temperature -65 to +150 o c t op operating junction temperature range 0 to +150 o c electrical characteristics (under operating conditions) paramete r conditions min typ. max unit output voltage ap1120(b) - v out1 i out = 10ma, t a = 25 o c, 4.8v Q v in Q 12v 3.235 3.300 3.365 v ap1120 - v out2 i out = 10ma, t a = 25 o c, 4v Q v in Q 12v 2.450 2.500 2.550 v ap1120b - v out2 i out = 10ma, t a = 25 o c, 4v Q v in Q 12v 1.764 1.800 1.836 v line regulation i o =10ma,v out +1.5v> 5.5mm*5.5mm (like 10mm*10mm).
ap1120 dual 1a low dropout positive regulator ap1120 rev. 2 5 of 7 february 2009 www.diodes.com ? diodes incorporated typical perform ance characteristics temperature ( o c) percent change in output voltage vs temperature output voltage change (%) -50 -25 0 25 50 75 100 125 150 - 2 -1.5 - 1 -0.5 0 0. 5 1 1.5 2 input voltage (v) line regulation output voltage deviation (%) 0 0.2 0.4 0.6 0.8 1 24 6 8 10 12 time (us) line transient response output voltage deviation (mv) input voltage (v) -40 -20 0 20 40 5.5 6.5 7.5 cin=1uf cout=10uf tantalum 0 20 40 60 80 100 120 140 160 180 200 time (us) load transient response load current (a) output voltage deviation (mv) 010 20 30 40 50 60 70 80 90 100 -1 0 1 2 -20 -10 0 10 20 30 c in = 1uf c out = 10 uf tantalum preload = 100ma dropout voltage vs output current temperature ( o c) load regulation vs temperature output voltage deviation (%) -25 0 25 50 75 100 125 - 1 -0.80 -0.40 -0.20 0 0.20 i load=800ma output current (ma) dropout voltage ( v ) 0 0. 2 0. 4 0. 6 0. 8 1. 0 1. 2 1. 4 1. 6 1. 8 2. 0 0 250 500 750 1000 tj = 125 o c tj = 25 o c
ap1120 dual 1a low dropout positive regulator ap1120 rev. 2 6 of 7 february 2009 www.diodes.com ? diodes incorporated marking information (1) sop-8l ( top view ) ap1120 x yy ww x x logo part number 5 8 4 1 ww : week : 01~52; 52 yy : year : 08, 09,10~ l : lead free x : internal code represents 52 and 53 week blank : 3.3v/2.5v version b : 3.3v/1.8v version package information (all dimensions in mm) (1) package type: sop-8l 1.27typ 0.3/0.5 7~9 4.85/4.95 3.85/3.95 5.90/6.10 0.15/0.25 7~9 0.62/0.82 0.10/0.20 gauge plane 0.254 seating plane 0.35max. 45 detail "a" detail "a" 1.30/1.50 1.75max. land pattern recommendation (unit: mm) 6x-1.27 8x-1.55 8x-0.60 5.4 0/8
ap1120 dual 1a low dropout positive regulator ap1120 rev. 2 7 of 7 february 2009 www.diodes.com ? diodes incorporated 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 assume 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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