techni cal data 2012 , november , rev. 0 4 5 - v/100ma low power low - drop fixed - voltage regulator with low current consumption the ile 4264 - 2 is a m onolithic i ntegrated low p ower low - drop fixed voltage regulator 5 - v/100ma with low current consumption. the ile 4264 - 2 is specially designed to create power source with 5v output voltage, loads up to 100 ma and drop voltage less than 0 . 5v. the regulator is designed to supply electronic device in automotive applications and some another applications. the ile 4264 - 2 is equipped with additional p rotection against overvoltage of both polarities, load current limitation, short - circuit and over temperature shutdown of output voltage. p - sot223 - 4 - 1 ordering information ile4264 - 2 g features ? output voltage tolerance 5 v ? 3% ( ? 2% up to 50 ma) ? low - drop voltage ? current capability up to150 ma ? very low current consumption ? over temperature protection ? reverse polarity proof ? junction temperature - 40 t +1 50 ? ? suitable for use in automotive electronics ? short - circuit proof ? aec - q100 qu a lified ? esd protection : hbm 8 . 000v / mm 400v / cdm 2 . 000v block diagram ile4264 - 2 ordering information device operating te m perature range package packing ile4264 - 2get t j = - 4 0 ? to 125 ? c p - sot223 - 4 - 1 t &r
ile42 64 - 2 2012, november , rev. 0 4 pin d escription (for p - sot223 - 4 package) pin symbol function 01 i input voltage; block to ground directly with a ceramic capacitor 03 q 5 - v output voltage; block to ground with a capacitor (c q 10 ? , esr 4 ? ) 02, 04 gnd ground absolute maximum ratings parameter s ymbol min max unit note input voltage v i - 42 45 v input current i i li mited internally ground pin current i gnd 50 - ma output voltage v q - 0.3 32 v output current i q limited internally junction temperature t j - 40 150 o c storage temperature t stg - 50 150 o c * stresses beyond those listed under absolute maximum rat ings may cause permanent damage to the device. these are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. exposure to absolute - max imum - rated conditions for extended periods may affect device reliability. operating range parameter s ymbol min max unit input voltage v i 6 28 v junction temperature j - 40 125 o c thermal resistances parameter s ymbol min max unit thermal resistances junction - case , for conventional case p - sot223 - 4 - 1 r th jc - 25* o c/w thermal resistances junction - ambient, for conventional case p - sot223 - 4 - 1, - without heat sink r th ja - 220* o c/w * r th ja - thermal resistances junction - ambient thermal resistanc e junction ambient for ic with heat dissipater is calculated by formula: r th ja = r th jc + r th ca (1) rth jc - thermal resistance junction case, o c /w. application circuit and heat dissipater have to provide t j ? 125 o . maximum power ptot, ?, dissipated by ic for t a , is calculated by formula: p tot = (125 - t a ) / r th ja (2) 125 C maximum permitable operating junction temperature,
ile42 64 - 2 2012, november , rev. 0 4 electric al characteristics ( v i =13 . 5 v, - 40 o c ? t j ? 125 o c, unless specified otherwise) parameter symbol test conditions limit value unit note min typ max output voltage v q 9 v ? v i ? 16 v 5 ma ? i q ? 50 ma 4.9 5.0 5.1 v 6 v ? v i ? 21 v 5 ma ? i q ? 100 ma 4.85 5.0 5.15 maximum output current i qmax 4.8 v ? v q ? 5.2 v 150 500 ma consumption current i q = i i - i q i q i q =0.1 ma, (t j ? 85 o c) - 0.06 ma i q = 0.1 ma - 0.07 i q = 50 ma - 4 drop - out voltage v dr i q = 100 ma - 0.25 0.5 v 1 load regulation ? v q(i) 1 ma ? i q ? 100 ma vi = 13.5 v - 90 mv line r egulation ? v q (v) 6 v ? vi ? 28v i q = 1 ma - 30 mv note : 1 drop voltage v dr = v i - v q (measured when the output voltage v q has dropped 100 mv from the nominal value obtained at v i = 13.5 v). typical performance p arameters ( v i =13.5 v, - 40 o c ? t j ? 1 25 o c, unless specified otherwise) parameter symbol test condition typical v alue unit power supply ripple rejection psrr f r = 100 hz, v r = 3 v (peek - to - peek) 68 db
ile42 64 - 2 2012, november , rev. 0 4 application circuit in the ile4264 - 2 the output voltage is divided a nd compared to an internal reference of 2.5 v typical. the regulation loop controls the output to achieve an output voltage of 5v with an accuracy of 3% at an input voltage range of 5.5 v < v i < 45 v. figure shows a typical application circuit. for stabil ity of the control loop the ile4264 - 2 output requires an output capacitor c q of at least 10 f with a maximum permissible esr of 4. tantalum as well as multi layer ceramic capacitors are suitable. at the input of the regulator an input capacitor is necessary for compensating line influences (100nf ceramic capacitor recommended). a resistor of ap prox. 1 in series with c i , can damp any oscillation occurring due the input inductivity and the input capacitor. in the application circuit shown in figure an additional electrolytic input capacitor of 470 f is added in order to buffer supply line influe nces. this capacitor is recommended, if the device is sourced via long supply lines of several meters. the ile4264 - 2 can supply up to 150 ma. however for protection for high input voltage above 25 v, the output current is reduced (soa protection). c1 i 470 uf i l e 4 2 6 4 - 2 g c q 10 uf c2 i 100 nf 01, 02 08 input 09, 07 gnd i q output inh
ile42 64 - 2 2012, november , rev. 0 4 typica l performance characteristics
ile42 64 - 2 2012, november , rev. 0 4 typical performance characteristics (continue)
ile42 64 - 2 2012, november , rev. 0 4 package dimensions p - sot 223 - 4 - 1
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