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standard power data sheet rev. 1.13, 2011-02-10 ifx2931 low dropout linear voltage regulator IFX2931GV50 ifx2931gv33
pg-dso-8 type package marking IFX2931GV50 pg-dso-8 ifx2931 ifx2931gv33 pg-dso-8 2931v33 data sheet 2 rev. 1.13, 2011-02-10 low dropout linear voltage regulator ifx2931 1overview features ? very low quiescent current ? output current in excess of 100ma ? input-output differential less than 0.6v for 5v-version ? reverse battery protection ? output current limitation ? overtemperature shutdown ? mirror-image insertion protection ? needs only small output capacitor c out =10f ? green product (rohs compliant) for automotive and transportation applications, please refe r to the infineon tle and tlf voltage regulator series. general description the ifx2931 is a positive voltage regu lator with a very low quiescent current of 1ma or less when supplying 10ma loads. the IFX2931GV50 also offers an extremely low dr opout voltage required for proper regulation: 0.2v for output currents of 10ma. therefore the ifx2931 is the id eal supply for standby power systems. it is suitable for e.g. memory standby circui ts, cmos and other low power processor power supplies. it certainly can also be used for any system demanding as much as 100ma of output current. the ifx2931 is protected from reverse polarity condition and can withstand input voltages of 28 v cont inously. the ifx2931 cannot be harmed by temporary mirror-image insertion. additional protection features such as output current limitation and overtemperature shutdown are also implemented. the ifx2931 comes in an 8-lead smd package (pg-dso-8).
data sheet 3 rev. 1.13, 2011-02-10 ifx2931 block diagram 2 block diagram figure 1 block diagram saturation control and protection temperature sensor adjustment bandgap reference 1 2,3,6,7 8 input gnd output aeb01527 circuit amplifier control buffer
ifx2931 pin configuration data sheet 4 rev. 1.13, 2011-02-10 3 pin configuration 3.1 pin assignment figure 2 pin configuration 3.2 pin definitions and functions IFX2931GV50, ifx2931gv33 (pg-dso-8) pin symbol function 1out output block to gnd with a capacitor close to the ic terminals, respecting the values given for its capacitance c out and esr in ?typical performance characteristics? on page 9 2,3,6,7 gnd ground 4,5 n.c. not connected 8in input for compensating line influences, a capacito r to gnd close to the ic terminals is recommended in n.c. gnd gnd out n.c. gnd gnd 1 2 3 4 8 5 6 7 pinco nf ig _ dso - 8 .vsd pg-dso-8
data sheet 5 rev. 1.13, 2011-02-10 ifx2931 general product characteristics 4 general product characteristics 4.1 absolute maximum ratings note: stresses above the ones listed here may cause perm anent damage to the device. exposure to absolute maximum rating conditions for extended periods may affect device reliability. note: integrated protection functions are designed to prevent ic destruction under fault conditions described in the data sheet. fault conditions are considered as ?outside? normal operating range. protection functions are not designed for continuous repetitive operation. 4.2 functional range note: within the functional range the ic operates as de scribed in the circuit description. the electrical characteristics are specifi ed within the conditions given in the re lated electrical ch aracteristics table. absolute maximum ratings 1) t j = -40 ? c to 125 ? c; all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) 1) not subject to production test, specified by design. pos. parameter symbol limit values unit conditions min. max. input 4.1.1 voltage v i -30 28 v ? output 4.1.2 voltage v out -0.3 28 v ? temperatures 4.1.3 junction temperature t j -40 125 ? c? 4.1.4 storage temperature t stg -55 150 ? c? esd susceptibility 4.1.5 esd resistivity to gnd v esd -2 2 kv hbm 2) 2) esd susceptibility, hbm acco rding to eia/jesd 22-a114b pos. parameter symbol limit values unit conditions min. max. 4.2.1 input voltage v i 6 28 v IFX2931GV50 4.2.2 4.4 26 v ifx2931gv33 4.2.3 junction temperature t j -40 125 ? c?
ifx2931 general product characteristics data sheet 6 rev. 1.13, 2011-02-10 4.3 thermal resistance pos. parameter symbol limit values unit conditions min. typ. max. IFX2931GV50, ifx2931gv33 (pg-dso-8) 4.3.1 junction to soldering point 1) 1) not subject to production test, specified by design r thjsp ? 39 ? k/w measured to group of pins 2, 3, 6, 7 4.3.2 junction to ambient 1) r thja ? 96 ? k/w footprint only 2) 2) specified r thja value is according to jedec jesd51-2,-7 at natural convection on fr4 2s2p board; the product (chip+package) was simulated on a 76.2 x 114.3 x 1.5 mm boar d with 2 inner copper layers (2 x 70m cu, 2 x 35m cu). 4.3.3 ? 67 ? k/w 300mm 2 heatsink area on pcb 2) 4.3.4 ? 66 ? k/w 600mm 2 heatsink area on pcb 2)
data sheet 7 rev. 1.13, 2011-02-10 ifx2931 electrical characteristics 5 electrical characteristics 5.1 electrical charact eristics IFX2931GV50 electrical characteristics v i =14v, t j = -40 ? c to 125 ? c, i out = 10 ma, all voltages with respect to grou nd, positive current flowing into pin (unless otherwise specified) pos. parameter symbol limit values unit conditions min. typ. max. 5.1.1 output voltage v out 4.75 5 5.25 v t j =25c 4.5 5 5.5 v ? 5.1.2 line regulation ? v out,line ?210mv9v< v i <16v 5.1.3 ? 4 30 mv 6 v < v i <26v 5.1.4 load regulation ? v out,load ?-14-50mv5ma< i out <100ma 5.1.5 output impedance 1) 1) not subject to production test, specified by design z out ?200?m ? i out =100ma dc and i out =10ma rms 100 hz - 10 khz 5.1.6 current consumption i q ?0.41ma i out =10ma 6v< v i <26v 5.1.7 ? 9 15 ma i out =100ma 5.1.8 output noise voltage 1) v noise ?500?v rms 100 hz - 10 khz c out =100f 5.1.9 long term stability 1) ? v out,1000h ?20?mv /1000h ? 5.1.10 ripple rejection 1) psrr ?80?db f ripple =120hz 5.1.11 dropout voltage 2) v i - v out 2) obtained when the output voltage has dropped 100mv below the nominal value v dr ?0.050.2v i out =10ma 5.1.12 ? 0.3 0.6 v i out =100ma
ifx2931 electrical characteristics data sheet 8 rev. 1.13, 2011-02-10 5.2 electrical charact eristics ifx2931gv33 electrical characteristics v i =14v, t j = -40 ? c to 125 ? c, i out = 10 ma, all voltages with respect to grou nd, positive current flowing into pin (unless otherwise specified) pos. parameter symbol limit values unit conditions min. typ. max. 5.2.1 output voltage v out 3.135 3.3 3.465 v t j =25c 2.97 3.3 3.63 v 4.4 v < v i <26v i out =100ma 5.2.2 line regulation ? v out,line ?433mv4.4v< v i <26v t j =25c 5.2.3 load regulation ? v out,load ?-10-50mv5ma< i out <100ma t j =25c 5.2.4 output impedance 1) 1) not subject to production test, specified by design z out ?200?m ? i out =100ma dc and i out =10ma rms 100 hz - 10 khz 5.2.5 current consumption i q ?0.41ma i out =10ma 4.4 v < v i <26v 5.2.6 ? 15 ? ma i out =100ma 5.2.7 output noise voltage 1) v noise ?330?v rms 10 hz - 100 khz c out =100f 5.2.8 long term stability 1) ? v out,1000h ?13?mv /1000h ? 5.2.9 ripple rejection 1) psrr ?80?db f ripple =120hz 5.2.10 dropout voltage 2) v i - v out 2) obtained when the output voltage has dropped 100mv below the nominal value v dr ?0.851.1v i out =100ma, t j =25c
data sheet 9 rev. 1.13, 2011-02-10 ifx2931 electrical characteristics 5.3 typical performance characteristics dropout voltage v dr versus output current i out IFX2931GV50: output voltage v out versus input voltage v i ifx2931gv33: output voltage v out versus input voltage v i load transient response dr v q 0 25 aed0197 8 100 200 3 00 400 500 600 mv 8 00 50 100 ma 175 75 125 = c 125 25 c = 700 j t j t 0 0 aed019 8 4 v q 24 6 10 2 4 v 6 8 1 3 5 l r =50 v v 0,0 0 0,5 0 1,0 0 1,5 0 2,0 0 2,5 0 3,0 0 3,5 0 02468 1 0 v i [v] v q [v] i q = 50 ma v33 _ iq_vi.vsd -80 -60 -40 -20 0 20 40 60 ? v out [mv] c out = 100 f esr(c out ) = 0.4 ? 0 20 40 60 80 100 120 140 160 -10 0 10 20 30 40 50 60 70 80 90 t [s] ? out [ma] loadtransientresponse.vsd
ifx2931 electrical characteristics data sheet 10 rev. 1.13, 2011-02-10 IFX2931GV50: output voltage v out versus junction temperature t j ifx2931gv33: output voltage v out versus junction temperature t j output current i out versus input voltage v i current consumption i q versus low output current i out 4.60 -40 aed019 8 2 v q 040 8 0 160 4. 8 0 5.00 v 5.20 120 c 4.70 4.90 5.10 i v =1 3 .5 v j t v33_vq_tj.vsd 2,90 3,00 3,10 3,20 3,30 3,40 3,50 -40 10 60 110 160 t j [c] v q [v] v i = 14 v 0 0 aed019 83 = c 125 25 c = q v 10 20 3 040 50 50 100 150 200 ma v j t j t q 0 0 aed019 8 1 ma 3 0 10 20 q 0.5 1.0 1.5 2.0 ma 3 .0 v i =1 3 .5 v 5 15 2.5
data sheet 11 rev. 1.13, 2011-02-10 ifx2931 electrical characteristics current consumption i q versus output current i out current consumption i q versus input voltage v i q 0 0 aed019 8 0 ma 150 50 100 q 2 4 6 8 ma 12 v i =1 3 .5 v 10 0 2 4 6 8 10 12 010203040 v i [v] i q [ma] r l = 50 ? r l = 100 ? iq_vi.vsd
ifx2931 electrical characteristics data sheet 12 rev. 1.13, 2011-02-10 power supply ripple rejection psrr versus frequency f IFX2931GV50: output capacitor?s equivalent series resistance esr(c out ) versus output current i out ifx2931gv33: output capacitor?s equivalent series resistance esr(c out ) versus output current i out 0,00 10,00 20,00 30,00 40,00 50,00 60,00 70,00 80,00 90,00 0,01 0,1 1 10 100 f [khz] psrr [db] i out = 1 ma c out = 10 f esr(c out ) = 0,02 ? i out = 10 ma i out = 100 ma psrr_f.vsd 0,00 1,00 2,00 3,00 4,00 5,00 6,00 7,00 8,00 9,00 10,00 020406080100 i out [ma] esr(c out ) [ ? ] c out = 10 f unstable region stable region esr_iout.vsd 0,00 1,00 2,00 3,00 4,00 5,00 6,00 7,00 8,00 9,00 10,00 0 20406080100 i out [ma] esr(c out ) [ ? ] c out = 10 f unstable region stable region v33_esr_iout.vsd
data sheet 13 rev. 1.13, 2011-02-10 ifx2931 package outlines 6 package outlines figure 3 pg-dso-8 green product (rohs compliant) to meet the world-wide customer requirements for environmentally friendly products and to be compliant with government regulations the device is available as a green product. green products are rohs-compliant (i.e pb-free finish on leads and suitable for pb-free soldering according to ipc/jedec j-std-020). +0.06 0.19 0. 3 5 x 45? 1) -0.2 4 c 8 max. 0.64 ?.2 6 ?.25 0.2 8 x m c 1.27 +0.1 0.41 0.2 m a -0.06 1.75 max. (1.45) ?.07 0.175 b 8 x b 2) index m a rking 5 -0.2 1) 4 1 8 5 a 1) doe s not incl u de pl as tic or met a l protr us ion of 0.15 m a x. per s ide 2) le a d width c a n be 0.61 m a x. in d a mb a r a re a gp s 011 8 1 0.1 for further information on alternativ e packages, please vi sit our website: http://www.infineon.com/packages . dimensions in mm
ifx2931 revision history data sheet 14 rev. 1.13, 2011-02-10 7 revision history revision date changes 1.13 2011-02-10 editorial change on page 9 (typo) 1.12 2010-02-23 editorial change 1.11 2009-10-19 coverpage changed overview page: inserted reference statement to tle/tlf series. 1.1 2009-05-04 version with 3.3v output voltage and all related description added form page 2 on on top right ?IFX2931GV50? updated to ?ifx2931? in ?features? on page 2 ?input-output differential less than 0.6v? updated to ?input-output differential less than 0.6v for 5v-version? in ?general description? on page 2 , all ?IFX2931GV50? replaced by ?ifx2931?; in line 2, ?it? replaced by ?the IFX2931GV50?; in ?pin configuration? on page 4 ?, ifx2931gv33? added in ?functional range? on page 5 item 4.2.2 added, in item 4.2.1 ?s condition ?IFX2931GV50? added in table 4.3 ?thermal resistance? on page 6 ?, ifx2931gv33? added ?electrical characteristics IFX2931GV50? on page 7 updated: ?IFX2931GV50? added in this heading table 5.2 ?electrical characte ristics ifx2931gv33? on page 8 added in ?typical performance characteristics? on page 9 performance characteristics ?ifx2931gv33: output voltage v out versus input voltage v i ? on page 9 , ?ifx2931gv33: output voltage v out versus junction temperature t j ? on page 10 and ?ifx2931gv33: output capacitor?s equivalent series resistance esr(c out ) versus output current i out ? on page 12 added; ?IFX2931GV50? added in description of performance characteristics ?IFX2931GV50: output voltage v out versus input voltage v i ? on page 9 , ?IFX2931GV50: output voltage v out versus junction temperature t j ? on page 10 and ?IFX2931GV50: output capacitor?s equivalent series resistance esr(c out ) versus output current i out ? on page 12 1.0 2008-04-21 final version data sheet
edition 2011-02-10 published by infineon technologies ag 81726 munich, germany ? 2011 infineon technologies ag all rights reserved. legal disclaimer the information given in this docu ment shall in no event be regarded as a guarantee of conditions or characteristics. with respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, infine on technologies hereby disclaims any and all warranties and liabilities of any kind, including witho ut limitation, warranties of non-infrin gement of intellectua l property rights of any third party. information for further information on technology, delivery terms and conditions and prices, please contact the nearest infineon technologies office ( www.infineon.com ). warnings due to technical requirements, components may contain dangerous substances. for information on the types in question, please contact the nearest infineon technologies office. infineon technologies compon ents may be used in life-su pport devices or systems only with the express written approval of infineon technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safe ty or effectiveness of that de vice or system. life support devices or systems are intended to be implanted in the hu man body or to support an d/or maintain and sustain and/or protect human life. if they fail, it is reasonable to assume that the health of the user or other persons may be endangered.

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