bay linear, inc 2478 armstrong street, livermore, ca 94550 tel: (925) 989-7144, fax: (925) 940- 9556 www.baylinear.com 1.5a low dropout voltage regulator b1086 adjustable & fix output advance information pin connection ordering information devices package temp. b1086t to-220 0 c to 70 c b1086s to-263 0 c to 70 c b1086d to-252 0 c to 70 c description the bay linear b1086 is monolithic low power 1.5a adjustable and fixed npn voltage regulator that are easy to use with minimum external components. it is suitable for applications requiring a well-regulated positive output voltage with low input-output differential voltage requirements and output voltage 3.3v, 2.9v, or 2.5v. the b1086 outstanding features include full power usage up to 1.5amp of load current internal current limiting and thermal shutdown. other fixed versions are also available v out =2.0 to 4.0v. the b1086 is offered in a 3-pin to-220, to-263 & to-252 packages compatible with other 3 terminal regulators. for 3a low dropout regulator refer to the b1085 data sheet. features ? adjustable output down to 1.2v ? fixed output voltages 2.5v, 3.3v, and 5.0v ? output current of 1.5a ? low dropout voltage 1.1v typ. ? current & thermal limiting ? standard 3-terminal low cost to-220, d 2 , d packages ? similar to industry standard lt1086/lt1586 applications ? 3.3v to 2.5v for pentium processor ? smps post regulator ? high efficiency ?green? computer systems ? high efficiency linear power supplies ? 5v to 3.xxv fro pentium processor ? battery charger bay linear bay linear bay linear bay linear linear excellence front view to-252 (d) adj/ gnd v in v ou t 1 23 top view to-263-3 (s) 1 bay linear 2 3 top view to-263-3 (s) 1 bay linear 2 3 top view to-263-3 (s) 1 bay linear 2 3 top view to-263-3 (s) 1 bay linear 2 3
bay linear, inc 2478 armstrong street, livermore, ca 94550 tel: (925) 989-7144, fax: (925) 940- 9556 www.baylinear.com b1086 absolute maximum rating parameter symbol value unit maximum input voltage v in 6 v power dissipation p o internally limited w thermal resistance junction to case jc 3 thermal resistance junction to ambient ja 50 c/w operating junction temperature range control section power transistor t j 0 to 125 0 to 150 storage temperature range t stg -65 to 150 lead temperature (soldering 10 sec.) t lead 260 c electrical characteristics (v in = 4.75v to 5.25v; i o = 10ma to 1.5amp, unless otherwise specified) parameter symbol conditions min typ max unit 3.267 3.333 v o = 3.3v, i o = 10ma, v in =5v, t= 25 c v o = 3.3v, i o = 10ma, v in =5v, over temp. 3.234 3.3 3.366 2.871 2.929 v o = 2.9v, i o = 10ma, v in =5v, t= 25 c v o = 2.9v, i o = 10ma, v in =5v, over tamp. 2.842 2.9 2.958 2.475 2.525 output voltage v o v o = 2.5v, i o = 10ma, v in =5v, t= 25 c v o = 2.5v, i o = 10ma, v in =5v, over temp. 2.450 2.5 2.550 v 0.015 line regulation (1) reg (line) i o = 10ma, v in =5v, t= 25 c i o = 10ma, v in =5v, over temperature 0.035 0.2 load regulation (1) reg (load) i o = 10ma, v in =5v, t= 25 c i o = 10ma, v in =5v, over temperature % 1.0 dropout voltage v d t= 25 c over temperature 1.1 1.3 v current surge limit i s 2.5 a quiescent current i q v in =5v 10 16 ma temperature coefficient t c v in =5v 0.005 %/ c temperature stability t s i o = 10ma, v in =5v 0.5 % rms output noise v n t= 25 c, 10hz to 10khz 0.003 %v o ripple rejection r a t= 25 c, v in =5v 60 70 db thermal resistance - to-220 junction to tab junction to ambient dd package junction to tab junction to ambient 3.0 60 3.0 60 3.0 60 3.0 60 c/w note: output switch tests are performed under pulsed conditions to minimize power dissipation
bay linear, inc 2478 armstrong street, livermore, ca 94550 tel: (925) 989-7144, fax: (925) 940- 9556 www.baylinear.com advance information - these data sheets contain descriptions of products that are in development. the specifications are based on the engineering ca lculations, computer simulations and/ or initial prototype evaluation. preliminary information - these data sheets contain minimum and maximum specifications that are based on the initial device characterizations. these lim its are subject to change upon the completion of the full characterization over the specified temperature and supply voltage ranges. the application circuit examples are only to explain the representative applications of the devices and are not intended to gua rantee any circuit design or permit any industrial property right to other rights to execute. bay linear takes no responsibility for any problems related to any industrial property right resulting from the use of the contents shown in the data book. typical parameters can and do vary in different applications. customer?s technical experts must validate all operating parameters including ? typical? for each customer applic ation. life support and nuclear policy bay linear products are not authorized for and should not be used within life support systems which are intended for surgical implants into the body to support or sustain life, in aircraft, space equipment, submarine, or nuclear facility applications wi thout the specific written consent of bay linear president.
|
