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type package marking tle 4252 g pg-to263-5 TLE4252G low dropout tracking regulator tle 4252 g data sheet 1 rev. 1.0, 2008-05-09 features ? output tracking tolerance to reference 0.2% output voltage adju st down to 1.5 v 250 ma output cu rrent capability enable function very low current cons umption in off mode wide operation range: up to 40 v wide temperature range: -40 c t j 150 c output protected against short circuit to gnd and battery overtemperature protection reverse polarity proof green product (rohs compliant) aec qualified short functional description the tle 4252 is a monolithic integrated low-drop out voltage tracki ng regulator in a pg-to263-5 package. it is des igned to supply off-board sys tems, e.g. sensors in engine management systems under th e severe conditions of au tomotive applications. therefore, the device is equ ipped with additional protecti on functions against reverse polarity and short circ uit to gnd and battery. with supply voltages up to 40 v, the output voltage follows a reference voltage with high accuracy. the reference volta ge can be applied directly to the adjust input or by an external resistor divider. th e minimum reference voltage at the component?s pin is 1.5 v. the output is able to drive loads up to 250 ma fo llowing e.g. the 5 v output of a main voltage regulator as reference. the tle 4252 tracking regulator can be switched into stand-by mode to reduce the current consumption to less th an 2a. this feature makes the ic suitable for low power battery applications. this product is also available in a pg -to252-5 package. see datasheet ?tle 4252 d?.
data sheet 2 rev. 1.0, 2008-05-09 tle 4252 g block diagram figure 1 internal circuit blocks tle 4252 d aeb03536.vsd saturation control and protection circuit temperature control i gnd en adj q
tle 4252 g data sheet 3 rev. 1.0, 2008-05-09 figure 2 pin configuration table 1 pin definitions and functions pin no. symbol function 1i supply voltage input; input for battery or a pre-regulated voltage of a e.g. a dc to dc converter. for compensating li ne influences, a capac itor to gnd close to the ic pins is recommended. 2en enable input; a high signal turns on the ic, with a low signal the tracking regulator is turned off. 3gnd ground; connect to tab. 4adj adjust input; input for the reference voltage which can be connected directly or by voltage divider to the reference (see ?application information? on page 8 ). 5q regulator output; block to gnd with a capacitor close to the ic pins, respecting the valu es given for its capacitance c q and esr in table ?functional range? on page 5 . tab ? connect to gnd and heatsink area. tle 4252 g_p in ou t. v s d 1 i 4 adj 5 q 3 2 en tab gnd pg-to-263 -5
data sheet 4 rev. 1.0, 2008-05-09 tle 4252 g note: stresses above the ones listed here may cause permanent damage to the device. exposure to absolute maximu m rating conditions for ex tended periods may affect device reliability. note: integrated protection functions are desi gned to prevent ic des truction under fault conditions described in the data shee t. fault conditions are considered as ?outside? normal operating range. prot ection functions are not designed for continuous repetitive operation . table 2 absolute maximum ratings parameter symbol limit values unit remarks min. max. supply voltage input i voltage v i -42 45 v ? current i i ? ? a limited internally 1) enable input en voltage v en -42 45 v ? current i en ? ? a limited internally adjust input adj voltage v adj -42 45 v ? current i adj ? ? a limited internally output q voltage v q -2 45 v ? current i q ? ? a limited internally temperature junction temperature t j -40 150 c? storage temperature t stg -50 150 c? esd-protection voltage v esd -2 2 kv human body model (hbm) 1) for reverse current flowing in case of negative supply voltage, see table ?electrical characteristics? on page 6 . a reverse current may heat up the device. the integr ated temperature protection is not operating at negative supply voltage.
tle 4252 g data sheet 5 rev. 1.0, 2008-05-09 note: within the functional rang e the ic operates as describ ed in the circuit description. the electrical characterist ics are specified within th e conditions given in the related electrical ch aracteristics table. . table 3 functional range parameter symbol limit values unit remarks min. typ. max. in- and output voltage supply voltage v i 3.5 ? 40 v v i > v adj + v dr enable input voltage v en 0?40v? adjust input voltage v adj 1.5 ? 40 v ? error amplifier common mode range cmr 1.5 ? v i - 0.5 v v q v adj + ? v q with v fb = v q output capacitor output capacitor?s requirement c q 10??f? esr(c q ) ??5 ? 1) temperature junction temperature t j -40 ? 150 c? 1) relevant esr value at f = 10 khz. not subject to production test; specified by design. table 4 thermal resistance pg-to263-5 1) 1) not subject to production test; specified by design. parameter symbol limit values unit remarks min. typ. max. junction to case r thjc ?4.76k/w? junction to ambient r thja ? 24 ? k/w 2s2p pcb 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 mm3 board with 2 inner copper layers (2 x 70m cu, 2 x 35m cu). where applicable, a thermal vi a array under the tab contacted the first inner copper layer. ? 35 ? k/w pcb heat sink area 600 mm 2 3) 3) specified r thja value is according to jedec jesd 51-3 at na tural convection on fr4 1s0p board; the product (chip+package) was simulated on a 76.2 x 114.3 x 1. 5 mm3 board with 1 copper layer (1 x 70 m cu). ? 44 ? k/w pcb heat sink area 300 mm 2 3)
data sheet 6 rev. 1.0, 2008-05-09 tle 4252 g table 5 electrical characteristics v i = 13.5 v; 1.5 v v adj v i - 0.6 v; -40 c < t j < 150 c; unless otherwise specified parameter symbol limit values unit test condition min. typ. max. regulator performance, tracker output q output voltage tracking accuracy ? v q = v adj - v q ? v q -10 ? 10 mv 4.5 v < v i < 26 v; 1 ma < i q < 200 ma; output voltage tracking accuracy ? v q = v adj - v q ? v q -10 ? 10 mv 3.5 v < v i < 32 v; 10 ma < i q < 100 ma; -25 ? 25 mv 3.5 v < v i < 4.5 v; 1 ma < i q < 200 ma; dropout voltage v dr ? 280 600 mv i q = 200 ma; v adj > 3.5 v; v en = v en, on 1) output current limitation i q,lim 250 350 500 ma v q = 5.0 v 2) output capacitor c q 10 ? ? f0 esr 5 ? at 10 khz current consumption i q = i i - i q i q ?1025ma i q = 200 ma; v q = 5 v current consumption i q = i i - i q i q ? 100 150 a i q < 100 a; t j < 85 c; v en = 5 v quiescent current (stand-by) i q = i i - i q i q ?02 a v en = 0 v; v en/adj = 0 v; t j < 85 c reverse current i r ?0.55ma v q = 16 v; v i = 0 v load regulation ? v q ??10mv1 ma < i q < 200 ma line regulation ? v q ??10mv5 v < v i < 32 v; i q = 5 ma power supply ripple rejection pssr ?60?db f i, ripple = 100 hz; v i, ripple = 0.5 vpp 3)
tle 4252 g data sheet 7 rev. 1.0, 2008-05-09 adjust input adj input biasing current i adj ?0.10.5 a v adj = 5 v enable input en device on voltage range v en, on 2.0 ? 40 v v q settled device off voltage range v en, off 0?0.8v v q < 0.1 v input current i en -1 2 5 a v en = 5 v en pull-down resistor r en ?1.5?m ? ? 1) measured when the output voltage v q has dropped 100 mv from the nominal value. 2) the current limit depends also on the input voltage, se e graph output current vs. in put voltage in the diagrams section. 3) specified by design. not subject to production test. table 5 electrical characteristics (cont?d) v i = 13.5 v; 1.5 v v adj v i - 0.6 v; -40 c < t j < 150 c; unless otherwise specified parameter symbol limit values unit test condition min. typ. max.
data sheet 8 rev. 1.0, 2008-05-09 tle 4252 g application information figure 3 application circuit: output voltage < reference voltage figure 3 shows a typical appli cation circuit with v q < v ref . of course, also v q = v ref is feasible by directly connecting the referenc e pin of the tle 4252 d to the appropriate voltage level withou t voltage divider. the output voltage calculates to: (1) aea03535.vsd main c supply e.g. tle 4271-2 tle 4278 tle 4470 etc. gnd v bat i q r 1adj r 2adj c e.g. c167 v dd tle 4252 d gnd en q adj i v q < v ref 4 1 5 i/o v q v ref r 2adj r 1adj r 2adj + ----------------------------------- - ?? ?? =
data sheet 9 rev. 1.0, 2008-05-09 tle 4252 g typical performance characteristics output current limit i q versus input voltage v i current consumption i q versus output current i q drop voltage v dr versus output current i q drop voltage v dr versus junction temperature t j aed03537.vsd 0 v i1,2 10 20 30 40 50 0 100 200 300 400 500 ma v t j = 25c i q1,2 0.2 i q [ma] 110 tle4252_iq -iq .vsd 1 0.1 10 100 i q [ma] v i = 13.5 v v adj = 5 v t j = 25 c 0.2 i q [ma] 110 tle4252_vdr-iq .vsd 100 10 1000 100 v dr [mv] t j = 25 c -40 t j [c] -20 20 40 80 100 v dr [mv] tle4252_vdr-tj.vsd 300 200 100 400 060 140 120 i q = 100 ma 600 i q = 200 ma
data sheet 10 rev. 1.0, 2008-05-09 tle 4252 g package outlines figure 4 pg-to263-5-1 outline a nd footprint (ref low soldering) green product (rohs compliant) to meet the world-wi de customer requirements for envi ronmentally friendly products and to be compliant with government regula tions the device is available as a green product. green products are ro hs-compliant (i.e pb-free fi nish on leads and suitable for pb-free soldering according to ipc/jedec j-std-020). b a 0.25 m 0.2 gpt09113 10 8.5 1) (15) 0.2 9.25 0.3 1 0...0.15 5 x 0.8 0.1 0.1 1.27 4.4 b 0.5 0.1 0.3 2.7 4.7 0.5 2.4 1.7 0...0.3 a 1) 7.55 4 x all metal surfaces tin plated, except area of cut. metal surface min. x = 7.25, y = 6.9 typical 1) 0.1 b 0.1 0.05 8? max. 7.9 10.8 hlg09441 9.4 16.15 4.6 0.6 1.1 for further information on infineon packages, please visit our website: http://www.infineon.com/packages . dimensions in mm
tle 4252 g data sheet 11 rev. 1.0, 2008-05-09 revision history version date changes rev. 1.0 2008-05-09 final datasheet tle 4252 g. corrected swaped numbers at table 4 "thermal resistance pg-to263-5" on page 5 (value for 300mm 2 vs. 600mm 2 ). rev. 0.9 2008-04-22 initial preliminar y datasheet of tle 4252 g (pg-to263-5).
edition 2008-05-09 published by infineon technologies ag 81726 munich, germany ? 2008 infineon technologies ag all rights reserved. legal disclaimer the information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. with respect to any examples or hints given herein, any typical valu es stated herein and/or any information regarding the application of the device, infineon technologies her eby disclaims any and all warranties and liabilities of any kind, including wi thout limitation, warranties of non-infrin gement of intellectual property rights of any third party. information for further information on technology, delivery terms an d 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 near est infineon technologies office. infineon technologies components may be used in life-supp ort 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 device or system. life support devices or systems are intended to be implanted in the hu man 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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