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february 2012 doc id 15541 rev 8 1/20 1 l5150bn 5 v low dropout voltage regulator features operating dc supply voltage range 5.6 v to 40 v low dropout voltage low quiescent current precison output voltage 5 v 2% very wide stability range with low value output capacitor thermal shutdown and short-circuit protection wide temperature range (t j = -40 c to 150 c) description l5150bn is a low dropout linear 5 v regulator particularly suitable for automotive applications. high output voltage accurancy (2%) is kept over wide temperature range line and load variation. its sophisticated design allows to have extremely low quiescent current. the maximum input voltage is 40 v. the regulator output curr ent is internally limited and the device is protected against short-circuit, overload and overtemperature conditions. in addition, only low-value ceramic capacitor on output is required for stability. max dc supply voltage v s 40 v max output voltage tolerance v o 2% max dropout voltage v dp 500 mv output current i 0 150 ma quiescent current i q 50 a (1) 1. typical value. sot-223 '!0'03 table 1. device summary package order codes tube tape & reel sot-223 l5150bn L5150BNTR www.st.com
contents l5150bn 2/20 doc id 15541 rev 8 contents 1 block diagram and pins descripti on . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.4 electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.5 application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3 package and pcb thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 3.1 sot-223 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4 package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.1 ecopack ? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.2 sot-223 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.3 sot-223 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
l5150bn list of tables doc id 15541 rev 8 3/20 list of tables table 1. device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 table 2. pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 table 3. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 table 4. thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 table 5. general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 table 6. sot-223 thermal parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 table 7. sot-223 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 table 8. document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
list of figures l5150bn 4/20 doc id 15541 rev 8 list of figures figure 1. block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 figure 2. output voltage vs. t j . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 3. output voltage vs. v s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 4. drop voltage vs. output current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 5. current consumption vs. output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 6. current consumption vs. output current (at light load condition). . . . . . . . . . . . . . . . . . . . . . 8 figure 7. current consumption vs. input voltage (io = 0.1 ma) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 8. current consumption vs. input voltage (io = 75 ma). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 9. current limitation vs. t j . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 10. current limitation vs. input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 11. short-circuit current vs. t j . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 12. short-circuit current vs. input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 13. psrr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 14. application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 figure 15. stability region . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 figure 16. maximum load variation response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 figure 17. sot-223 pc board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 figure 18. rthj-amb vs. pcb copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . . 12 figure 19. sot-223 thermal impedance junction ambient single pulse . . . . . . . . . . . . . . . . . . . . . . . 13 figure 20. thermal fitting model of vreg in sot-223 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 figure 21. sot-223 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 figure 22. sot-223 tape and reel shipment (suffix ?tr?) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
l5150bn block diagram and pins description doc id 15541 rev 8 5/20 1 block diagram and pins description figure 1. block diagram table 2. pins description (1) 1. for the pins configurat ion see outlines at page 1. n pin name function 1v s supply voltage, block directly to gnd on the ic with a capacitor. 2 gnd ground reference 3v o 5 v regulated output. block to gnd with a ceramic capacitor (c 0 > 220 nf for regulator stability) *$3*36 9 v 9r 67$5783 9rowdjh 5hihuhqfh &xuuhqw /lplwhu 3rzhu 'ulyhu 9 7khupdo 6kxwgrzq *1'
electrical specifications l5150bn 6/20 doc id 15541 rev 8 2 electrical specifications 2.1 absolute maximum ratings stressing the device above the rating listed in the table 3: absolute maximum ratings may cause permanent damage to the device. these are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not imp lied. exposure to absolute ma ximum rating conditions for extended periods may affect device reliability. refer also to the stmicroelectronics sure program and other relevant quality documents. 2.2 thermal data m table 3. absolute maximum ratings symbol parameter value unit v sdc dc supply voltage -0.3 to 40 v i sdc input current internally limited v o dc output voltage -0.3 to 6 v i o dc output current internally limited t j junction temperature -40 to 150 c v esd hbm esd voltage level (hbm-mil std 883c) 2 kv v esd cdm esd voltage level (cdm aec-q100-011) 750 v table 4. thermal data (1) 1. the values quoted are for pcb 58 mm x 58 mm x 2 mm, fr4, double copper layer with single heatsink layer, copper thickness 35 m, copper area 2 cm 2 . symbol parameter value unit r thj-case thermal resistance junction to case: sot-223 20 k/w r thj-amb thermal resistance junction to ambient: sot-223 79 k/w
l5150bn electrical specifications doc id 15541 rev 8 7/20 2.3 electrical characteristics values specified in th is section are for v s = 5.6 v to 31 v, t j = -40 c to +150 c unless otherwise stated. table 5. general pin symbol parameter test condition min. typ. max. unit v o v o_ref output voltage v s = 8 v to 18 v, io = 8 ma to 150 ma 4.9 5.0 5.1 v v o v o_ref output voltage v s = 5.6 v to 31 v, i o = 8 ma to 150 ma 4.85 5.0 5.15 v v o v o_ref output voltage v s = 5.6 v to 31 v, i o = 0.1 ma to 8 ma 4.75 5.0 5.25 v v o i short short-circuit current v s = 13.5 v 0.65 1.10 1.45 a v o i lim output current limitation (1) v s = 13.5 v 0.28 0.45 0.66 a v s , v o vline line regulation voltage v s = 6 v to 28 v, i o = 30 ma 40 mv v o v load load regulation voltage v s = 8 v to 18 v, i o = 8 ma to 150 ma 55 mv v s = 13.5 v, t j = 25 c, i o = 8 ma to 150 ma 40 v s , v o v dp drop voltage (2) i o = 150 ma 500 mv v s , v o svr ripple rejection f r = 100 hz (3) 60 db v o i oth_h normal consumption mode output current v s = 8 v to 18 v 8 ma v o i oth_l very low consumption mode output current v s = 8 v to 18 v 1.1 ma v o i oth_hyst output current switching threshold hysteresis v s = 13.5 v, t j = 25 c 0.8 ma v s , v o i qn_1 current consumption i qn_1 = i vs ? i o v s = 13.5 v, i o = 0.1 ma to 1 ma, tj = 25 c 50 80 a v s = 13.5 v, i o = 0.1 ma to 1 ma, 95 v s , v o i qn_150 current consumption i qn_150 = i vs ? i o v s = 13.5 v, i o = 150 ma 3.2 4.2 ma t w thermal protection temperature 150 190 c t w_hy thermal protection temperature hysteresis 10 c 1. measured output current when the output voltage has drop ped 100 mv from its nominal value obtained at 13.5 v and i o = 75 ma. 2. v s - v o measured dropout when the output voltage has dropped 100 mv from its nominal value obtained at 13.5 v and i o = 75 ma. 3. guaranteed by design.
electrical specifications l5150bn 8/20 doc id 15541 rev 8 2.4 electrical characteristics curves figure 2. output voltage vs. t j figure 3. output voltage vs. v s figure 4. drop voltage vs. output current figure 5. current consumption vs. output current figure 6. current consumption vs. output current (at light load condition) figure 7. current consumption vs. input voltage (io = 0.1 ma) ) 6o?ref6 4j?# )om! 6s6 '!0'#&4 9ruhi9 *$3*&)7 9 6 9 ,r p$ 7f ?& 6dp6 )om! 4j?# 4j?# '!0'#&4 )qnm! )om! 6s6 4j ?# '!0'#&4 ,tqp$ ,r p$ 9v 9 7m ?& *$3*36 *$3*36 ,tq?$ 9v 9
l5150bn electrical specifications doc id 15541 rev 8 9/20 figure 8. current consumption vs. input voltage (io = 75 ma) figure 9. current limitation vs. t j figure 10. current limitation vs. input voltage figure 11. short-circuit current vs. t j figure 12. short-circuit current vs. input voltage figure 13. psrr )qnm! 6s6 '!0'#&4 )limm! 4j?# 6s6 '!0'#&4 '!0'#&4 ,olpp$ 9v9 7m ?& 7m ?& *$3*36 ,vkruwp$ 7m ?& 9v 9 *$3*36 ,vkruwp$ 9v9 7m ?& 7m ?& 0 10 20 30 40 50 60 70 0.1 1 10 100 1000 10000 f requency [khz] psrr [db] co=220nf
electrical specifications l5150bn 10/20 doc id 15541 rev 8 2.5 application information the voltage regulator uses a p-channel mos tran sistor as a regulating element. with this structure a very low dropout voltage at current up to 150 ma is obtained. the output voltage is regulated up to input supply voltage of 40 v. the high-precision of the output voltage (2%) is obtained with a pre-trimmed reference voltage. the voltage regulator automatically adapts its own quiescent current to the output current level. in light-load conditions the quiescent current goes to 55 a only (low consumption mode). this procedure features a certain hysteresis on the output current (see figure 6 ). short-circuit protection to gnd and a thermal shutdown are provided. figure 14. application schematic the input capacitor f is necessary as backup supply for negative pulses which may occur on the line. the second input capacitor nf is needed when the c 1 is too distant from the v s pin and it compensates smooth line disturbances. the c 0 ceramic capacitor, connected to the output pin, is for bypassing to gnd the high-frequency noise and it guarantees stab ility even during sudden line and lo ad variations. sug gested value is nf with . stability region is reported in figure 15 . co /%1 9v *1' 9r & & 9 %$77 &r *$3*36 c 1 100 c 2 220 c 0 220 = esr 10 0 m
l5150bn electrical specifications doc id 15541 rev 8 11/20 figure 15. stability region figure 16. maximum load variation response (652kp &r?) (65plq 67$%,/,7<5(*,21 817(67('5(*,21 *$3*36 note: the curve which describes the minimum esr is derived from characteriza tion data on the regulator with connected ceramic capacitors which feature low esr values (a t 100 khz). any capacitor with further lower esr than the given plot value must be evaluated in each and every case. 6 o m6div ) o m!div 6 3 6 ) o to m! 4 c ?& # o n& *$3*36
package and pcb thermal data l5150bn 12/20 doc id 15541 rev 8 3 package and pcb thermal data 3.1 sot-223 thermal data figure 17. sot-223 pc board figure 18. r thj-amb vs. pcb copper area in open box free air condition . '!0'03 note: layout condition of r th and z th measurements (pcb: double layer, fr4 area= 58 mm x 58 mm, pcb thickness = 2 mm, cu thickness = 35 m (front and back side), footprint dimension 4.1 mm x 6.5 mm ). 3&%&xkhdwvlqnduhdfpa irrwsulqw 57+mbdpe?.: '!0'03
l5150bn package and pcb thermal data doc id 15541 rev 8 13/20 figure 19. sot-223 thermal impedance j unction ambient single pulse equation 1: pulse calculation formula where = t p /t figure 20. thermal fitting model of vreg in sot-223 7l ph v =7+?.: &xirrwsulqw &x f p *$3*36 z th r th z thtp 1 ? () + ? = *$3*&)7
package and pcb thermal data l5150bn 14/20 doc id 15541 rev 8 table 6. sot-223 thermal parameter area (cm 2 ) footprint 2 r1 (k/w) 1.53 r2 (k/w) 3.21 r3 (k/w) 5.2 r4 (k/w) 24 r5 (k/w) 0.1 r6 (k/w) 100 45 c1 (w.s/k) 0.00004 c2 (w.s/k) 0.0003 c3 (w.s/k) 0.03 c4 (w.s/k) 0.16 c5 (w.s/k) 1000 c6 (w.s/k) 0.5 2
l5150bn package and packing information doc id 15541 rev 8 15/20 4 package and packing information 4.1 ecopack ? in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions and product status are available at: www.st.com . ecopack ? is an st trademark. 4.2 sot-223 mechanical data figure 21. sot-223 package dimensions *$3*36
package and packing information l5150bn 16/20 doc id 15541 rev 8 table 7. sot-223 mechanical data dim. mm. inch min. typ. max. min. typ. max. a 1.8 0.071 b 0.6 0.7 0.85 0.024 0.027 0.033 b1 2.9 3 3.15 0.114 0.118 0.124 c 0.24 0.26 0.35 0.009 0.01 0.014 d 6.3 6.5 6.7 0.248 0.256 0.264 e 2.3 0.09 e1 4.6 0.181 e 3.3 3.5 3.7 0.13 0.138 0.146 h 6.7 7 7.3 0.264 0.276 0.287 v10 (max) a1 0.02 0.1 0.0008 0.004
l5150bn package and packing information doc id 15541 rev 8 17/20 4.3 sot-223 packing information figure 22. sot-223 tape and reel shipment (suffix ?tr?) 5hhoglphqvlrqv %dvhtw\ %xontw\ $pd[ % plq &? ) * 1 plq 7pd[ 7dshglphqvlrqv !ccordingto%lectronic)ndustries!ssociation %)! 3tandardrev!&eb 7d shzlgwk : 7dshkrohvsdflqj 3? &rpsrqhqwvsdflqj 3 +ro hgldphwhu '? +rohgl dphwhu 'plq +rohsrvlwlrq )? &rp sduwphqwghswk .pd[ +ro hvsdflqj 3? 4o p cover tape %n d 3t art .ocomponents .ocomponents #omponents mmm in mmmin %mpt ycomponentspockets saledw ithcovertape 5serdirectionoffeed *$3*36
revision history l5150bn 18/20 doc id 15541 rev 8 5 revision history table 8. document revision history date revision changes 18-jun-2007 1 initial release. 14-may-2008 2 corrected table 2: pins description : inverted 1 and 3 pins descriptions. updated table 5: general : ?v o_ref parameter: updated test conditions and values. ?v line and v short : updated test condition ? ishort: changed values from 0.65/0.95/1.25 to 0.65/1.10/1.45 (min/typ/max) ?i lim : changed values from 0.7/1/1. 30 to 0.28/0.45/0.66, added note ?v dp : added note ? inserted io th_l , io th_h , io th_hyst rows ?i qn_1 : changed values from 38/48 to 48/70 (typ/max). 09-sep-2008 3 updated table 5: general : ?v load parameter: changed test conditions.
l5150bn revision history doc id 15541 rev 8 19/20 16-jun-2009 4 updated corporate template (from v2 to v3) changed document title section : features on cover page ?i q on table: changed value from 48 a to 50 a ? added row in bullet list table 2: pins description v o : changed ceramic capacitor expression for function table 3: absolute maximum ratings ? updated all symbols table 4: thermal data ?r thj-amb : changed value ? updated tablefootnote table 5: general ?v load : changed max value for vs = 8 v to 18 v, added new row ?i qn_1 : changed test condition (added t j = 25 c), changed typ/max value for t j = 25 c , added new row ?i qn_150 : changed typ value added figure 2: output voltage vs. t j added figure 3: output voltage vs. v s added figure 4: drop voltage vs. output current added figure 5: current consumption vs. output current added figure 6: current consumption vs . output current (at light load condition) added figure 7: current consumption vs . input voltage (io = 0.1 ma) added figure 8: current consumption vs . input voltage (io = 75 ma) added figure 9: current limitation vs. t j added figure 10: current limitation vs. input voltage added figure 11: short-circuit current vs. t j added figure 12: short-circuit current vs. input voltage added figure 13: psrr section 2.5: application information ? changed section title from ?voltage regulator? to ?application information? ? updated text ? added figure 14: application schematic ? added figure 16: maximum load variation response added section 3: package and pcb thermal data changed section 4.1: ecopack ? 04-dec-2009 5 updated features list. updated section 2.5: application information . 06-apr-2010 6 updated table 5: general : ?i qn_1 and i qn_150 : updated test parameter. 30-jan-2012 7 modified figure 15: stability region on page 11 . 07-feb-2012 8 modified figure 15: stability region on page 11 . table 8. document revision history (continued) date revision changes
l5150bn 20/20 doc id 15541 rev 8 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by two authorized st representatives, st products are not recommended, authorized or warranted for use in milita ry, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2012 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - philippines - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com

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