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1/11 etr0325-006 general description the xb1086 is a series of low dropout positive voltage re gulators with a high output current capability of 1.5a. stable output can be maintained by using 10 f (c in ) and 22 f (c l ) of tantalum capacitors. the xb1086p series is available in the fixed voltage types of 1.5v, 1.8v, 2.5v, 3.3v, and 5.0v. the xb1086k is also available as a voltage adjustable type which can set the output vo ltage with only two external resistors. with an over current and thermal protection circuit built-in, the ic is disabled for protection when an output current reaches limit current or junc tion temperature increases up to limit temperature. the xb1086 series is available in to-252 p acka g e. typical application circuits applications high efficiency linear regulators battery chargers dvd drives set top boxes various battery drive equipment xb1086p series vin vout vss iout vin cin=10uf (tantalum) cl=22uf (tantalum) xb1086k series vin vout adj iout vin cin=10uf (tantalum) cl=22uf (tantalum) r1 r2 vout=vref (1+r2/r1) + iadj r2 xb1086p331 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 300 600 900 1200 1500 output current: iout (ma) output voltage: vout(v) ta=85 ta=25 ta=0 vin=4.9v cin=10uf(tantalcl=22uf(tantal typical performance characteristics output voltage vs. output current features maximum output current : more than 1.5a (within pd) maximum operating voltage : 15v output voltage : 1.5v, 1.8v, 2.5v, 3.3v, 5.0v (xb1086p) , externally set (xb1086k / reference voltage 1.25v (typ.)) output voltage accuracy : 1% ( tj =25 ) dropout voltage : 1.3v @ i out =1.5a (typ.) line regulation : 0.015% (typ.) load regulation : 0.1% (typ.) reference voltage pin current : less than 120 a overcurrent protection circuit built-in thermal protection circuit built-in package : to-252 environmentally friendly : eu rohs compliant vin=4.9v cin=10 f (tantalum), cl=22 f (tantalum) cin=10
2/11 xb1086 series pin number to-252 pin name funcitons 1 v ss / adj ground / reference voltage 2 v out output 3 v in input designator item synbol description p fixed v out type of regulators k adjustable (externally set) 151 v out =1.5v ( 1%) 181 v out =1.8v ( 1%) 251 v out =2.5v ( 1%) 331 v out =3.3v ( 1%) 501 v out =5.1v ( 1%) ?? output voltage and output voltage accuracy 12b v ref =1.25v ( 1%) jr to-252 (2,500/reel) ?- package (order unit) jr-g to-252 (2,500/reel) pin configuration to-252 (top view) pin assignment product classification ordering information xb1086 ????? - (*1) 13 4 2 vss/ adj vout (tab) vin vout v out (tab) 2 1 v ss / adj 2 v out 3 v in (*1) the ?-g? suffix denotes halogen and antimony free as well as being fully rohs compliant.
3/11 xb1086 series parameter symbol ratings unit input voltage v in 18 v power dissipation pd 1300 (*2) mw operating junction temperature tj 125 storage temperature t stg - 55 ~ 125 block diagram current limit thermal protection bandgap reference error amp vss/ adj vout vin a bsolute maximum ratings note: *1: stresses greater than those listed under the above ratings may cause permanent damage to the device. *2: the rating of the power dissipation is determined when mounted on the pcb. *diodes inside the circuit ar e esd protection diodes.
4/11 xb1086 series parameter symbol conditions min. typ. max. unit circuit 1.485 1.5 1.515 v out (1.5v) v in =3.5v, i out =10ma o.t. (*1) 1.47 - 1.53 v 1.782 1.8 1.818 v out (1.8v) v in =3.8v, i out =10ma o.t. (*1) 1.746 - 1.854 v v out 2.475 2.500 2.525 (2.5v) v in =4.5v, i out =10ma o.t. (*1) 2.45 - 2.55 v v out 3.267 3.300 3.333 (3.3v) v in =5.0v, i out =10ma o.t. (*1) 3.235 - 3.366 v 4.95 5 5.05 output voltage v out (5.0v) v in =7.0v, i out =10ma o.t. (*1) 4.9 - 5.1 v - 0.3 6 S v out1 (1.5v) 1.5v Q v in -v out Q 10v i out =10ma o.t. (*1) - 0.6 6 mv - 0.3 6 S v out1 (1.8v) 1.5v Q v in -v out Q 10v i out =10ma o.t. (*1) - 0.6 6 mv S v out1 1.5v Q v in- v out Q 10v - 0.3 6 (2.5v) i out =10ma o.t. (*1) 0.6 6 mv S v out1 1.5v Q v in- v out Q 10v - 0.5 10 (3.3v) i out =10ma o.t. (*1) - 1 10 mv - 0.5 10 line regulation S v out1 (5.0v) 1.5v Q v in -v out Q 10v i out =10ma o.t. (*1) - 1 10 mv - 3 12 S v out2 (1.5v) v in -v out =2.0v 10ma Q i out Q 1.5a o.t. (*1) - 6 20 mv - 3 12 S v out2 (1.8v) v in -v out =2.0v 10ma Q i out Q 1.5a o.t. (*1) - 6 20 mv S v out2 v in -v out =2.0v - 3 12 (2.5v) 10ma Q i out Q 1.5a o.t. (*1) - 6 20 mv S v out2 v in -v out =2.0v - 3 15 (3.3v) 10ma Q i out Q 1.5a o.t. (*1) - 7 20 mv - 5 20 load regulation S v out2 (5.0v) v in -v out =2.0v 10ma Q i out Q 1.5a o.t. (*1) - 10 35 mv dropout voltage v dif S v out =1%, i out =1.5a - 1.3 1.5 v current limit i lim v in -v out =2.0v 1.5 2.3 - a supply current i dd v in =v out +1.3v o.t. (*1) - 5 10 ma temperature stability i out =10ma ts o.t. (*1) v in -v out =1.5v i out =10ma o.t. (*1) - 0.5 - % - electrical characteristics xb1086pxxxj tj= 25 unless otherwise specified note: *1: o.t. denotes the specifications which apply ov er the range of operating junction temperature (0 Q tj Q 125 o c). please be sure that the power consumpt ion does not exceed the power dissipation rating, 1300mw. if the power consumption exceeds the power dissipation rating and the operating junction temperature rises more than the rating, 125 o c, the ic enters thermal shutdown state.
5/11 xb1086 series parameter symbol conditions min. typ. max. unit circuit v in -v out =2.0v 1.238 1.250 1.262 reference voltage v ref i out =10ma o.t. (*1) 1.225 - 1.270 v 1.5v Q v in- v out Q 10v - 0.015 0.2 line regulation S v out1 i out =10ma o.t. (*1) 0.035 0.2 % v in -v out =2.0v - 0.1 0.3 load regulation S v out2 10ma Q i out Q 1.5a o.t. (*1) 0.2 0.4 % dropout voltage vdif S v out =1%, i out =1.5a - 1.3 1.5 v current limit i lim v in -v out =2.0v 1.5 2.3 - a temperature stability t s v in -v out =1.5v i out =10ma o.t. (*1) - 0.5 - % - minimum output current i outmin 1.4v Q v in -v out Q 10v o.t. (*1) - 2 5 ma adjust voltage pin current i adj v in =v out +1.5v i out =10ma o.t. (*1) - 60 120 a note: *1: o.t. denotes the specifications which apply ov er the range of operating junction temperature (0 Q tj Q 125 o c). please be sure that the power consumpt ion does not exceed the power dissipation rating, 1300mw. if the power consumption exceeds the power dissipation rating and the operating junction temperature rises more than the rating, 125 o c, the ic enters thermal shutdown state. xb1086k12bj tj= 25 unless otherwise specified electrical characteristics (continued)
6/11 xb1086 series test circuits xb1086pxxxj circuit * c in =10 f ( tantalum ) , c l =22 f ( tantalum ) circuit xb1086k12bj circuit * c in =10 f ( tantalum ) , c l =22 f ( tantalum ) vout vss v cl cin a v vin a vout vss vin v a 100 164 vout: 3.3v v cin cl vout vin adj vin vin vin *
7/11 xb1086 series (1) output voltage vs. output current (5) reference voltage vs. ambient temperature (3) dropout voltage vs. output current (6) adjust pin current vs. ambient temperature (2) output voltage vs. input voltage xb1086p331 0 1 2 3 4 5 6 0246810 supply voltage: vin(v) supply current: iss (ma) ta=0 ta=25 ta=85 cin=10uf(tantalcl=22uftantal (4) supply current vs. input voltage xb1086p331 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0246810 supply voltage: vin(v) output voltage: vout(v) ta=85 ta=25 ta=0 iout=10m a cin=10uf(tantalcl=22uf(tantal xb1086k12b vout=3.3v) 1.22 1.23 1.24 1.25 1.26 1.27 0 102030405060708090 ambient temperature: ta () reference voltage: vref v) vin=4.9v cin=10uf(tantalcl=22uf(tantal xb1086k12b (vout=3.3v) 0 20 40 60 80 100 0 102030405060708090 ambient temperature: ta () adjust pin current: iadj (a vin=4.8v iout=10ma cin=10uf(tantalcl=22uf(tantal xb1086p331 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 300 600 900 1200 1500 output current: iout (ma) dropout voltage: vdifv) ta=0 ta=25 ta=85 cin =10uf(tantalcl=22uf(tantal xb1086p331 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 300 600 900 1200 1500 output current: iout (ma) output voltage: vout(v) ta=85 ta=25 ta=0 vin=4.9v cin=10uf(tantalcl=22uf(tantal typical performance characteristics vin=4.9v cin=10 f (tantalum), cl=22 f (tantalum) iout=10ma cin=10 f (tantalum), cl=22 f (tantalum) cin=10 f (tantalum), cl=22 f (tantalum) cin=10 f (tantalum), cl=22 f (tantalum) vin=4.9v cin=10 f (tantalum), cl=22 f (tantalum) iout=10ma cin=10 f (tantalum), cl=22 f (tantalum) input voltage: vin (v) input voltage: vin (v)
8/11 xb1086 series typical performance characteristics (continued) (7) load transient response (8) input transient response (9) ripple rejection rate xb1086p331 0.0 0.4 0.8 1.2 1.6 2.0 time10s/div output current: iout(a) 2.6 2.8 3 3.2 3.4 3.6 output voltage : vout(v) vin=4.8v cin=cl=10f(tantal) vout iout 0.75a 0.1a xb1086p331 0 20 40 60 80 100 0.01 0.1 1 10 100 ripple rejection ratekhz) ripple rejection rateb) vin=6.3vdc+1.0vp-pac iout=1ata=25,cl=25f(tantal) xb1086p331 4 5 6 7 8 9 10 time20s/div supply voltage: vin(v) 3.20 3.22 3.24 3.26 3.28 3.30 3.32 ou tpu t voltage: vout(v) iout=100ma cin=1f(tantal),cl=10f(tantal) vout vin 4.8v 5.8v xb1086k12b (vout=3.3v) 0.0 0.4 0.8 1.2 1.6 2.0 time10s/div output current:iout(a) 2.6 2.8 3.0 3.2 3.4 3.6 outputvoltage:vout(v) vin=4.8v cin=cl=10f(tantal) vout iout 0.75a 0.1a xb1086k12b (vout=3.3v) 4 5 6 7 8 9 10 time20s/div supply voltage: vin(v) 3.23 3.25 3.27 3.29 3.31 3.33 3.35 output voltage: vout(v) iout=100ma cin=1f(tantal),cl=10f(tantal) vout vin 5.8v 4.8v xb1086k12b (vout=3.3v) 0 20 40 60 80 100 0.01 0.1 1 10 100 ripple rejection ratekhz) ripple rejection rateb) vin=6.3vdc+1.0vp-pac iout=1ata=25cl=25f(tantal) ripple rejection rate: psrr (db) ripple rejection rate: psrr (db) vin=4.8v cin=cl=10 f ( tantalum) vin=4.8v cin=cl=10 f ( tantalum) iout=100ma cin=1 f (tantalum), cl=10 f (tantalum) iout=100ma cin=1 f (tantalum), cl=10 f (tantalum) vin=6.3vdc+1.0vp-pac iout=1a, ta-25 , cl=25 f (tantalum) vin=6.3vdc+1.0vp-pac iout=1a, ta-25 , cl=25 f (tantalum) 0.1 1 10 ripple frequency: f (khz) 0.1 1 10 ripple frequency: f (khz) output voltage: vout (v) output voltage: vout (v)
9/11 xb1086 series packaging information to-252 (2.29) (2.29) 4.94-5.50 bottom view 0.64-0.89 0.64-0.89 0.64-0.89 0.46-0.61 4.32 min 6.35-6.75 unit: mm
10/11 xb1086 series ? represents product series mark product series 8 6 xb1086****j* represent the type of regulator mark product series p xb1086p***j* k xb1086k***j* ? represents output voltage mark output votlage product series 1 5 1.5v xb1086p151j* 1 8 1.8v xb1086p181j* 2 5 2.5v xb1086p251j* 3 3 3.3v xb1086p331j* 5 0 5.0v xb1086p501j* 1 2 adj xb1086k12bj* represents output voltage accuracy and output type mark output voltage accuracy (output type) product series 1 1% xb1086p**1j* b adj xb1086k12bj* represents the last digit of production year ex.) mark production year 7 2007 8 2008 represents production lot number 0 to 9, a to z repeated. (g, i, j, o, q, w excepted. ?0? of the first digit does not mark.) *no character inversion used. ex.) mark production lot number blank 3 03 1 a 1a marking rule to-252 to-252 (top view) 1 3 2 mark header ?? *mark header does not change with a lot.
11/11 xb1086 series to-252 (top view) 1. the products and product specifications cont ained herein are subject to change without notice to improve performance characteristic s. consult us, or our representatives before use, to confirm that the informat ion in this datasheet is up to date. 2. we assume no responsibility for any infri ngement of patents, pat ent rights, or other rights arising from the use of any information and circuitry in this datasheet. 3. please ensure suitable shipping controls (including fail-safe designs and aging protection) are in force for equipment employing products listed in this datasheet. 4. the products in this datasheet are not devel oped, designed, or approved for use with such equipment whose failure of malfuncti on can be reasonably expected to directly endanger the life of, or cause significant injury to, the user. (e.g. atomic energy; aerospace; transpor t; combustion and associated safety equipment thereof.) 5. please use the products listed in this datasheet within the specified ranges. should you wish to use the products under conditions exceeding the specifications, please consult us or our representatives. 6. we assume no responsibility for damage or loss due to abnormal use. 7. all rights reserved. no part of this dat asheet may be copied or reproduced without the prior permission of torex semiconductor ltd.

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