4-127 telcom semiconductor, inc. 7 6 5 4 3 1 2 8 TC55 series features n very low dropout voltage .... 120mv typ at 100ma 380mv typ at 200ma n high output current .............. 250ma (v out = 5.0v) n high accuracy output voltage ........................ 2% ( 1% semicustom version) n wide output voltage range .................... 2.1v-6.0v n low power consumption ................... 1.1 m a (typ.) n low temperature drift ................... 100ppm/ c typ n excellent line regulation ..................... 0.2%/v typ n package options ....................................sot-23a-3 sot-89-3 to-92 n short circuit protected n standard 3.0v, 3.3v and 5.0v output voltages n custom voltages available from 2.1v to 6.0v in 0.1v steps. applications n battery-powered devices n cameras and portable video equipment n pagers and cellular phones n solar-powered instruments n consumer products general description the TC55 series is a collection of cmos low dropout positive voltage regulators which can source up to 250ma of current with an extremely low input-output voltage differen- tial of 380mv. the low dropout voltage combined with the low current consumption of only 1.1 m a makes this part ideal for battery operation. the low voltage differential (dropout voltage) extends battery operating lifetime. it also permits high cur- rents in small packages when operated with minimum v in C v out differentials. the circuit also incorporates short-circuit protection to ensure maximum reliability. low dropout positive voltage regulator output voltage: ex: 21= 2.1v; 60 = 6.0v extra feature code: fixed: 0 tolerance: 1 = 1.0% (custom) 2 = 2.0% (standard) temperature: e: C 40 c to +85 c package type and pin count: cb: sot-23a-3 (equivalent to eiaj (sc-59)) mb: sot-89-3 zb: to-92-3 taping direction: standard taping reverse taping no suffix: to-92 bulk part code TC55 rp xx x x x xx xxx ordering information pin configurations functional block diagram v in v out gnd + short-circuit protection voltage reference TC55-20 11/8/96 13 2 v in v in v in v out v out v out gnd gnd gnd TC55 TC55 TC55 1 1 2 3 3 2 *sot-23a-3 sot-89-3 to-92 *sot-23a-3 is equivalent to eiaj (sc-59)
4-128 telcom semiconductor, inc. TC55 series low dropout positive voltage regulator TC55rp50 electrical characteristics: v out (s) = 5.0v, t a = 25 c unless otherwise specified (see remarks). symbol parameter test conditions min typ max unit v out (a) output voltage i out = 40ma v v in = 6.0v 4.90 5.0 5.10 i out max maximum output current v in = 6.0v, v out (a) 3 4.5v 250 ma d v out load regulation v in = 6.0 v, 1 ma i out 100ma 40 80 mv v dif i/o voltage difference i out = 100ma 120 300 mv i out = 200 ma 380 600 i ss current consumption v in = 6.0v 1.1 3.0 m a v out (a)100 voltage regulation i out = 40ma 0.2 0.3 %/v d v in v out (s) 6.0v v in 10.0v v in input voltage 10.0 v d v out (a)10 6 temperature coefficient i out = 40ma 100 ppm/ c v out (s) d t a of output voltage C 40 c t a 85 c long term stability t a = 125 c, 1000 hours 0.5 % remarks :v out (s): preset value of output voltage v out (a): actual value of output voltage v dif : definition of i/o voltage difference = {v in 1 C v out (a)} v out (a): output voltage when i out is fixed and v in = v out (s) + 1.0v v in 1: input voltage when the output voltage is 98% v out (a) TC55rp40 electrical characteristics: v out (s) = 5.0v, t a = 25 c unless otherwise specified (see remarks). symbol parameter test conditions min typ max unit v out (a) output voltage i out = 40ma v v in = 5.0v 3.92 4.0 4.08 i out max maximum output current v in = 5.0v, v out (a) 3 3.6v 200 ma d v out load regulation v in = 5.0 v, 1 ma i out 100ma 45 90 mv v dif i/o voltage difference i out = 100ma 170 330 mv i out = 200ma 400 630 i ss current consumption v in = 5.0v 1.0 2.9 m a d v out (a)100 voltage regulation i out = 40ma 0.2 0.3 %/v d v in v out (s) 5.0v v in 10.0v v in input voltage 10.0 v d v out (a) temperature coefficient i out = 40ma 100 ppm/ c v out (s) d t a of output voltage C 40 c t a 85 c long term stability t a = 125 c, 1000 hours 0.5 % absolute maximum ratings* item code ratings units input voltage v in +12 v output current i out pd/(v in C v out )ma output voltage v out (v ss C 0.3) to (v in + 0.3) v power dissipation: sot-23a-3 pd 240 mw (t a 70 c) sot-89 400 to-92 440 operating temperature range t a C 40 to +85 c storage temperature range t stg C 65 to +150 c
4-129 telcom semiconductor, inc. 7 6 5 4 3 1 2 8 TC55 series low dropout positive voltage regulator TC55rp30 electrical characteristics: v out (s) = 5.0v, t a = 25 c unless otherwise specified (see remarks). symbol parameter test conditions min typ max unit v out (a) output voltage i out = 40ma v v in = 4.0v 2.94 3.0 3.06 i out max maximum output current v in = 4.0v, v out (a) 3 2.7v 150 ma d v out load regulation v in = 4.0v, 1 ma i out 80ma 45 90 mv v dif i/o voltage difference i out = 80ma 180 360 mv i out = 160ma 400 700 i ss current consumption v in = 4.0v 0.9 2.8 m a v out (a)100 voltage regulation i out = 40ma 0.2 0.3 %/v d v in v out (s) 4.0v v in 10.0v v in input voltage 10.0 v d v out (a)10 6 temperature coefficient i out = 40ma 100 ppm/ c d t a v out (s) of output voltage C 40 c t a 85 c long term stability t a = 125 c, 1000 hours 0.5 % marking sot-23a-3 sot-89-3 ? a ? ? a ? to-92-3 8 12 4 7 11 3 6 10 2 5 9 1 a represents first voltage digit 23456 ex: 3.xv = uuuu b represents first decimal place voltage (x.0 - x.9) a = x.0 e = x.4 l = x.8 b = x.1 f = x.5 m = x.9 c = x.2 h = x.6 d = x.3 k = x.7 ex: 3.4v = uuuu c represents polarity 0 = positive (fixed) d represents assembly lot number 3 3e a , b , c & d = 55rp (fixed) e = first voltage digit (2-6) f = first voltage decimal (0-9) g = extra feature code : fixed : 0 h = regulation accuracy 1 = 1.0% (custom), 2 = 2.0% (standard) i , j , k & l = assembly lot number *static-sensitive device. unused devices must be stored in conductive material. protect devices from static discharge and stati c fields. stresses above those listed under absolute maximum ratings may cause permanent damage to the device. these are stress ratings only and functional op eration of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. expos ure to absolute maximum rating conditions for extended periods may affect device reliability.
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