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standard power data sheet rev. 1.01, 2010-07-02 ifx8117 1a low-dropout linear voltage regulator ifx8117mev ifx8117mev33 IFX8117MEV50
pg-sot223-4 data sheet 2 rev. 1.01, 2010-07-02 1a low-dropout linear voltage regulator ifx8117 type package marking ifx8117mev pg-sot223-4 8117ad ifx8117mev33 pg-sot223-4 8117v3 IFX8117MEV50 pg-sot223-4 8117v5 1overview features ? 5 v, 3.3 v and adjustable voltage versions ? sot-223 package ? output current limitation and overtemperature shutdown ? output current up to 1a ? temperature range 0 c to 125 c ? line regulation max. 0.2 % ? load regulation max. 0.4 % ? ?1117? and ?8117? pin compatible ? green product (rohs compliant) applications ? post regulator for switching dc/dc converter ? high efficiency linear regulators ? battery charger ? battery powered instrumentation ? 5 v to 3.3 v linear regulators ?usb hubs ? routers, isdn/dsl modems ? active scsi terminators general description the ifx8117 is a family of low dropout voltage regulators with a dropout voltage of 1.2 v at 1 a of load current. it is available as adjustable version (i fx8117mev), providing output voltages from 1.25 v to 13.8 v, configured by two external resistors. additionally, the ifx8117 is also available in two fixed voltages, 5 v (IFX8117MEV50) and 3.3 v (ifx8117mev33). the ifx8117 implements protection features such as ou tput current limitation and overtemperature shutdown. a highly precise bandgap reference trimmed in produc tion assures output voltage accuracy to within 1%. the ifx8117 family comes in the pg-sot223-4 package. to improve the transient resp onse and the stability, a minimum of 10 f tantalum capaci tor is required at the output.
ifx8117 typical application data sheet 3 rev. 1.01, 2010-07-02 2 typical application figure 1 typical application ifx 8117 typical_application.vsd 10 f 10 f* *required if the regulator is located far from the power supply filter v i v q gnd
data sheet 4 rev. 1.01, 2010-07-02 ifx8117 block diagram 3 block diagram figure 2 block diagram (fixed voltage versions ifx8117mev33 and IFX8117MEV50) figure 3 block diagram (adjustable voltage version ifx8117mev) block_diagram.vsd thermal shutdown q gnd i power stage cl - + cl: current limitation ifx8117 block_diagram_adj.vsd thermal shutdown q adj i power stage cl - + cl: current limitation ifx8117
ifx8117 pin configuration data sheet 5 rev. 1.01, 2010-07-02 4 pin configuration 4.1 pin assignment fixed voltage ve rsions ifx8117mev33 and IFX8117MEV50 figure 4 pin assignment ifx8117mev33 and IFX8117MEV50 (top view) 4.2 pin definitions and fun ctions fixed voltage ve rsions ifx8117mev33 and IFX8117MEV50 pg-sot223-4 aep02868_1117_01 123 4 q gnd i q pin symbol function 1gnd ground 2q output block to gnd with a capacitor close to the ic terminals, respecting the values given for its capacitance c q and esr in the table ?functional range? on page 8 3 i input for compensating line influences, a capacito r to gnd close to the ic terminals is recommended 4 (tab) q output connect to pin 2; connect to heatsink area
data sheet 6 rev. 1.01, 2010-07-02 ifx8117 pin configuration 4.3 pin assignment adjustable voltage version ifx8117mev figure 5 pin assignment ifx8117mev (top view) 4.4 pin definitions and functions fixed voltage version ifx8117mev pin symbol function 1adj adjust connect to a voltage divider between q and gnd, see ?external resistor divider (adjustable version ifx8117mev only)? on page 16 2q output block to gnd with a capacitor close to the ic terminals, respecting the values given for its capacitance c q and esr in the table ?functional range? on page 8 3 i input for compensating line influences, a capacito r to gnd close to the ic terminals is recommended 4 (tab) q output connect to pin 2; connect to heatsink area pg-sot223-4 aep02868_1117_02 123 4 q adj i q
ifx8117 general product characteristics data sheet 7 rev. 1.01, 2010-07-02 5 general product characteristics 5.1 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. absolute maximum ratings 1) 0c t j 125 c; all voltages with respect to grou nd, 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 (fixed voltage version only) 5.1.1 voltage v i -0.3 20 v ? input (adjustable voltage version only) 5.1.2 voltage v i - v q -0.3 20 v ? output 5.1.3 voltage v q -0.3 20 v ifx8117mev33 IFX8117MEV50 5.1.4 voltage v q - v adj -0.3 6 v ifx8117mev temperature 5.1.5 junction temperature t j -40 150 c? 5.1.6 storage temperature t stg -50 150 c? electrostatic discharge esd 5.1.7 esd v esd,hbm -3 3 kv human body model (hbm) 2) 2) esd susceptibility, hbm acco rding to eia/jesd 22-a114b 5.1.8 v esd,cdm -1 1 kv charge device model (cdm) 3) 3) esd susceptibility, cdm eia/ jesd22-c101 or esda stm5.3.1
data sheet 8 rev. 1.01, 2010-07-02 ifx8117 general product characteristics 5.2 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. 5.3 thermal resistance pos. parameter symbol limit values unit conditions min. max. 5.2.1 input voltage v i v q + v dr 15 v ifx8117mev 4.55 15 v ifx8117mev33 6.25 15 v IFX8117MEV50 5.2.2 output capacitor?s requirements for stability c q 10 ? f ? esr(c q )0.5 5 ? 5.2.3 junction temperature t j 0125 c? pos. parameter symbol limit values unit conditions min. typ. max. 5.3.1 junction to soldering point 1) 1) not subject to production test, specified by design r thsp ? 15 ? k/w measured to pin 4 (tab) 5.3.2 junction to ambient 1) r thja ?51?k/w 2) 2) specified r thja value is according to jedec jesd51-2,-5,-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 board with 2 inner copper layers (2 x 70m cu, 2 x 35m cu). where applicable a thermal via array under the h eat slug contacted the first inner copper layer. 5.3.3 ? 146 ? k/w footprint only 3) 3) specified r thja value is according to jedec jesd 51-3 at natural convection on fr4 1s0p board; the product (chip+package) was simulated on a 76.2 114.3 1.5 mm 3 board with 1 copper layer (1 x 70m cu). 5.3.4 ? 75 ? k/w 300mm 2 heatsink area on pcb 3) 5.3.5 ? 63 ? k/w 600mm 2 heatsink area on pcb 3)
ifx8117 general product characteristics data sheet 9 rev. 1.01, 2010-07-02 5.4 electrical characteristics electrical characteristics adjustable version ifx8117mev 0 c t j 125 c, all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) pos. parameter symbol limit values unit conditions min. typ. max. 5.4.1 reference voltage v ref 1.238 1.250 1.262 v i q =10ma v i - v q =2v t j =25c 1.225 1.250 1.270 v 10 ma < i q <1a 1.4 v < v i - v q <10v 5.4.2 line regulation 1) 1) measured at constant junction temperature v q,line ? 0.035 0.2 % of v q i q =10ma 1.5 v < v i - v q < 13.75 v 5.4.3 load regulation 1) v q,load ? 0.2 0.4 % of v q v i - v q =3v 10 ma < i q <1a 5.4.4 dropout voltage 2) v dr = v i - v q 2) measured when the output voltage v q has dropped 100mv from the nominal value obtained at v i = v q +1.5v v dr ? 1.1 1.15 v i q = 100 ma ?1.151.2v i q = 500 ma ? 1.2 1.25 v i q = 1 a 5.4.5 output current limitation i q,max 1.0 1.4 1.9 a v i - v q = 5 v t j =25c 5.4.6 minimum load current 3) 3) minimum output current required to maintain regulation i q,min ?0.45ma v i =15v 5.4.7 thermal regulation v q,power ?0.010.1% of v q per 1w t a =25c 30 ms pulse 5.4.8 power supply ripple rejection 4) 4) not subject to production test, specified by design psrr 60 75 ? db v i - v q = 3 v f ripple = 120 hz v ripple = 1 v pp 5.4.9 adjust pin current i adj 10 30 50 a ? 5.4.10 adjust pin current change i adj ?0.25a10ma< i q <1a 1.4 v < v i - v q <10v 5.4.11 temperature stability 4) v q,temp ? 0.5 ? % of v q ? 5.4.12 long te rm stability 4) v q,1000h ? 0.3 ? % of v q t a = 125 c 1000h 5.4.13 rms output noise 4) v q,rms ? 0.003 ? % of v q 10 hz < f <10khz
data sheet 10 rev. 1.01, 2010-07-02 ifx8117 general product characteristics electrical characteristics 3.3 v version ifx8117mev33 0 c t j 125 c, all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) pos. parameter symbol limit values unit conditions min. typ. max. 5.4.14 output voltage v q 3.267 3.300 3.333 v i q =10ma v i =5v t j = 25 c 3.235 3.300 3.365 v 0 ma < i q <1a 4.75 v < v i <10v 5.4.15 line regulation 1) 1) measured at constant junction temperature v q,line ?16mv i q =0ma 4.75 v < v i <15v 5.4.16 load regulation 1) v q,load ? 0.2 0.4 % of v q v i =4.75v 0ma< i q <1a 5.4.17 dropout voltage 2) v dr = v i - v q 2) measured when the output voltage v q has dropped 100mv from the nominal value obtained at v i = v q +1.5v v dr ? 1.1 1.15 v i q = 100 ma ?1.151.2v i q = 500 ma ? 1.2 1.25 v i q = 1 a 5.4.18 output current limitation i q,max 1.0 1.4 1.9 a v i - v q = 5 v t j =25c 5.4.19 quiescent current i q ?510ma v i =15v 5.4.20 thermal regulation v q,power ?0.010.1% of v q per 1w t a =25c 30 ms pulse 5.4.21 power supply ripple rejection 3) 3) not subject to production test, specified by design psrr 60 75 ? db v i - v q = 3 v f ripple = 120 hz v ripple = 1 v pp 5.4.22 temperature stability 3) v q,temp ? 0.5 ? % of v q ? 5.4.23 long te rm stability 3) v q,1000h ? 0.3 ? % of v q t a = 125 c 1000h 5.4.24 rms output noise 3) v q,rms ? 0.003 ? % of v q 10 hz < f <10khz
ifx8117 general product characteristics data sheet 11 rev. 1.01, 2010-07-02 electrical characteristics 5 v version IFX8117MEV50 0 c t j 125 c, all voltages with respect to ground, positive current flowing into pin (unless otherwise specified) pos. parameter symbol limit values unit conditions min. typ. max. 5.4.25 output voltage v q 4.950 5.000 5.050 v i q =10ma v i =7v t j = 25 c 4.900 5.000 5.100 v 0 ma < i q <1a 6.5 v < v i <10v 5.4.26 line regulation 1) 1) measured at constant junction temperature v q,line ?16mv i q =0ma 6.5 v < v i <15v 5.4.27 load regulation 1) v q,load ? 0.2 0.4 % of v q v i =6.5v 0ma< i q <1a 5.4.28 dropout voltage 2) v dr = v i - v q 2) measured when the output voltage v q has dropped 100mv from the nominal value obtained at v i = v q +1.5v v dr ? 1.1 1.15 v i q = 100 ma ?1.151.2v i q = 500 ma ? 1.2 1.25 v i q = 1 a 5.4.29 output current limitation i q,max 1.0 1.4 1.9 a v i - v q = 5 v t j =25c 5.4.30 quiescent current i q ?510ma v i =15v 5.4.31 thermal regulation v q,power ?0.010.1% of v q per 1w t a =25c 30 ms pulse 5.4.32 power supply ripple rejection 3) 3) not subject to production test, specified by design psrr 60 75 ? db v i - v q = 3 v f ripple = 120 hz v ripple = 1 v pp 5.4.33 temperature stability 3) v q,temp ? 0.5 ? % of v q ? 5.4.34 long te rm stability 3) v q,1000h ? 0.3 ? % of v q t a = 125 c 1000h 5.4.35 rms output noise 3) v q,rms ? 0.003 ? % of v q 10 hz < f <10khz
data sheet 12 rev. 1.01, 2010-07-02 ifx8117 general product characteristics 5.5 typical performance characteristics load regulation v q,load versus i q line regulation v q,line versus v i dropout voltage v dr versus output current i q 0 200 400 600 800 1000 1200 0 200 400 600 800 1000 i q [ma] v dr [v] t j = 0 c t j = 25 c t j = 125 c 1_vdr_iq.vsd dropout voltage v dr versus junction temperature t j 0 200 400 600 800 1000 1200 -50 0 50 100 150 t j [c] v dr [v] i q = 10 ma i q = 100 ma i q = 1 a 2_vdr_tj.vsd dvq_diq.vsd -0,045 -0,040 -0,035 -0,030 -0,025 -0,020 -0,015 -0,010 -0,005 0,000 0 200 400 600 800 1000 i q [ma] v q,load [% of v q ] t j = 125 c t j = 25 c t j = 0 c dvq_dvi.vsd 0,000 0,010 0,020 0,030 0,040 0,050 0,060 0,070 0 5 10 15 20 v i [v] v q,line [% of v q ] t j = 125 c t j = 25 c t j = 0 c
ifx8117 general product characteristics data sheet 13 rev. 1.01, 2010-07-02 temperature stability v q versus t j current limit i q,max versus v i ifx8117mev (adjustable) adjust pin current i adj versus t j ifx8117mev (adj.) power supply ripple rejection psrr versus f r vq _ tj . v s d -0,015 -0,010 -0,005 0,000 0,005 0,010 050100 v q [% of v q ] i q = 5 ma iqmax_vi.vsd 0 200 400 600 800 1000 1200 1400 1600 050100150 t j [c] q,max [ ma ] v i = 7 v v i = 15 v iadj_tj.vsd 0 5 10 15 20 25 30 35 0 50 100 150 t j [c] adj [a ] 0 10 20 30 40 50 60 70 80 90 100 0,01 0,1 1 10 100 1000 f [khz] psrr [db] i q = 1 ma i q = 10 ma i q = 100 ma 10_psrr_fr_adj.vsd
data sheet 14 rev. 1.01, 2010-07-02 ifx8117 general product characteristics ifx8117mev (adj.) load transient response ifx8117mev (adj.) line transient response ifx8117mev33 (3.3 v) load transient response ifx8117mev33 (3.3 v) line transient response 0 t [s] 40 60 v q [%] adjloadtransresp.vsd -6 0.6 0.1 0 20 80 q [a] -3 3 v i - v q = 3 v c q = 10 f tantalum 0 t [s] 40 60 v q [%] adjlinetransresp.vsd -6 3.5 2.5 0 20 80 v i - v q [v ] -3 3 i q = 100 ma c q = 10 f tantalum 0 t [s] 40 60 v q [mv] 33loadtransresp.vsd -100 0.6 0.1 0 20 80 q [a] -50 50 v i = 5 v c q = 10 f tantalum 0 t [s] 40 60 v q [mv] 33linetransresp.vsd 5.75 4.75 0 20 80 v i [v] -50 50 i q = 100 ma c q = 10 f tantalum
ifx8117 general product characteristics data sheet 15 rev. 1.01, 2010-07-02 IFX8117MEV50 (5 v) load transient response i fx8117mev50 (5 v) line transient response 0 t [s] 40 60 v q [v] 50loadtransresp.vsd 4.8 0.6 0.1 5.0 20 80 q [a] 4.9 5.1 v i = 7 v c q = 10 f tantalum 0 t [s] 40 60 v q [v] 50linetransresp.vsd 4.8 8.0 7.0 5.0 20 80 v i [v ] 4.9 5.1 i q = 100 ma c q = 10 f tantalum
data sheet 16 rev. 1.01, 2010-07-02 ifx8117 application hints 6 application hints 6.1 external components input capacitor an input capacitor is recommended to compensate line influences. as a minimum a 100 nf ceramic input capacitor should be used to filter high frequency noise. for buffering line transients a capacitance of 10f is suggested. output capacitor the output capacitor is part of the re gulation loop of the regu lator and therefore important to maintain stability. it must meet the required conditions for minimum capacitance value and ma ximum value of equivalent series resistance (esr) as given in ?functional range? on page 8 . an increase of the out put capacitance will improve the transient response an d the loop stability. to achieve low voltage drops at load transients, tantalum capacitors are recommended. external resistor divider (adj ustable version ifx8117mev only) the ifx8117mev adjustable version develops a 1.25 v reference voltage, v ref , between the output q and the adjust terminal adj. as shown in figure 6 , this voltage is applied across resistor r 1 to generate a constant current i 1 . the current i adj from the adjust terminal could introduce error to the output. but since it is very small (50a) compared to the i 1 and very constant with line and load changes, th e error can be ignored. the constant current i 1 then flows through the output set resistor r 2 and sets the output voltage to the desired level. at the fixed voltage devices ifx8117mev33 and ifx8117 mev50 the resistor divider is integrated inside the device. figure 6 ifx8117mev adjustable version ifx 8117 mev adjustable _version .vsd 10 f 10 f v q = v ref (1 + r 2 / r 1 ) + i adj r 2 v i v q adj r 1 r 2 i adj i 1 v ref
ifx8117 application hints data sheet 17 rev. 1.01, 2010-07-02 6.2 protection diodes figure 7 ifx8117mev with protection diode in normal operating conditions, no diodes are needed for protection of the device. in case the input is shorted to gnd and the output capacitor is st ill charged, a peak current can flow from the output to the input of the regulator. this peak current depends on the size and the equivalent series resistor (esr) of the output capacitor. when the input is instantaneously shorted to gnd, and with a large output capacitor with low esr, the regulator risks to be damaged. for this environm ent it is recommended to add an external diode between the output and the input to protect the regulator as shown in figure 7 . ifx 8117 mev protection_diode.vsd v i v q adj r 1 r 2 1n4001 (optional )
data sheet 18 rev. 1.01, 2010-07-02 ifx8117 package outlines 7 package outlines figure 8 pg-sot223-4 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). gps05560 12 3 3 4 ?.1 0.0 4 0.5 min. 0.28 0.1 max. 15? max. 6.5 ?.2 a 4.6 2.3 0.7 ?.1 0.25 m a 1.6 ?.1 7 ?.3 b 0.25 m ?.2 3.5 b 0...10? you can find all of our packages, so rts of packing and others in our infineon internet page ?products?: http://www.infineon.com/products . dimensions in mm
ifx8117 revision history data sheet 19 rev. 1.01, 2010-07-02 8 revision history version date changes 1.01 2010-07-02 data sheet rev. 1.01 editorial changes
edition 2010-07-02 published by infineon technologies ag 81726 munich, germany ? 2010 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. the infineon technologies component descr ibed in this data sheet may be used in life-support devices or systems and/or automotive, aviation and aero space applications 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 automotive, aviation and aerospace device or system or to affect the safety or effectiveness of that device or system. life support devices or syste ms are intended to be implanted in th e human body or to support and/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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