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ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 1 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator features up to 1a output current 70ua operating supply current excellent line regulation: 0.05%/v low dropout: 350mv@ 1a(vout=3.3v) high power supply rejection ratio wide operating voltage range: 2.5v to 6.0v 1v to 5v factory-preset output high accuracy: 1% or 2% built-in auto discharge function 500ma in-rush current limit fold-back current limit protection thermal shutdown protection dfn-6, sot-89-5, sot-89-3, sot-223-5, sot-223-3, to-263-3, to-220-3, to-252-3 and to-252-5 package rohs compliant and 100% lead (pb)-free applications portable communication equipment battery-powered equipment laptop, palmtops, notebook computers hand-held instruments pcmcia cards and wireless lan electrical appliances such as cameras, vcrs description the BL9110 is a low-dropout regulator that operates the input voltage from 2.5v to 6v and delivers 1a load current. the BL9110 is available in two types, either fixed or adjustable output voltage. the outp ut voltage of the fixed types is preset at an internal ly trimmed voltage 1v, 1.2v, 1.3v, 1.5v, 1.8v, 2.5v, 2.7v, 2.8v, 2.85v, 3.0v, 3.2v, 3.3v, 5v or can be made with options of the output range from 1v to 5v in 50mv increments. the output range of adjustable types is from 1v to 5v. the BL9110 consists of a voltage reference, an error amplifier, resistor net for setting output voltage, a current limit circuit for over-current and a thermal-shutdown circuit. a standby mode with ultra low supply current can be realized with the chip enable function. since the packages for BL9110 are dfn-6, sot-89-5, sot-223-5, sot-223-3, to-263-3, to-220-3, sot-89-3, to-252-3, to92-3 and to-252-5 with high power dissipation, high density mounting of th e ic on board is possible. ordering information BL9110-vvv x x xx typical application package: aa: dfn-6 ba: sot-89-5-a bb: sot-89-5-b ca: to-252-5 da: sot-223-5 ea: to-252-3-a eb: to-252-3-b fa: sot-223-3-a fb: sot-223-3-b fc: sot-223-3-c fd: sot-223-3-d ga: to-263-3-a gb: to-263-3-b gc: to-263-3-c ha: to-220-3 ia: sot-89-3-a ib: sot-89-3-b ic: sot-89-3-c ja:to92-3 features: p: standard (default, lead free) c: customized output voltage accuracy a: 1% b: 2% output voltage 100:1.0v 120:1.2v 130:1.3v 150:1.5v 180:1.8v 250:2.5v 270:2.7v 280:2.8v 285:2.85v 300:3.0v 320:3.2v 330:3.3v 500:5.0v adj: adjustable
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 2 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator absolute maximum rating (note 1) input supply voltage (v dd ) -0.3v to +7v ce input voltage -0.3v to +7v output voltage -0.3v to v in +0.3v output current 1.4a maximum junction temperature 125c operating temperature range (note2) -40c to 85c storage temperature range -65c to 125c lead temperature (soldering, 10s) 300c package information part number top mark temp range BL9110-vvvxxaa BL9110aa vvvyww (note3) -40c to +85c BL9110-vvvxxba/b BL9110ba/b vvvyww -40c to +85c BL9110-vvvxxca BL9110ca vvvyww -40c to +85c aa ba bb ca
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 3 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator part number top mark temp range BL9110-vvvxxda BL9110da vvvyww -40c to +85c BL9110-vvvxxea/b BL9110ea/b vvvyww -40c to +85c BL9110-vvvxxfa/b/c/d BL9110fa/b/c/d vvvyww -40c to +85c BL9110-vvvxxga/b/c BL9110ga/b/c vvvyww -40c to +85c part number top mark temp range BL9110-vvvxxha BL9110ha vvvyww -40c to +85c BL9110-vvvxxi/a/b/c BL9110ia/b/c vvvyww -40c to +85c BL9110-vvvxxja BL9110ja vvvyww -40c to +85c da ha
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 4 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator pin descriptions symbol description vout output pin gnd ground pin ce chip enable pin (high active) vdd input pin adj/nc adjustable/no connection vvv 100 120 130 285 495 500 adj voltage (v) 1.0 1.2 1.3 2.85 4.95 5.0 adjustable y 9 a b c d year 2009 2010 2011 2012 2013 ww 01 09 10 11 51 52 week 1 9 10 11 51 52 thermal resistance (note 4) : package k ja k jc dfn-6 95 c/w 10 c/w sot-89-5 160 c/w 45 c/w to-252-5 90 c/w 10 c/w sot-223-5 160 c/w 20 c/w to-252-3 90 c/w 10 c/w sot-223-3 160 c/w 20 c/w to-263-3 65 c/w 7 c/w to-220-3 50 c/w 7 c/w sot89-3 180 c/w 50 c/w note 1: absolute maximum ratings are those values beyond wh ich the life of a device may be impaired. note 2: the BL9110 is guaranteed to meet performance specif ications from 0c to 70c. specifications over the C40c to 85c operating temperature range are assured by des ign, characterization and correlation with statisti cal process controls. note 3: vvv: voltage code (for example 100 stands for 1.0v) y: year of wafer manufacturing ww: week of wafer manufacturing note 4: thermal resistance is specified with approximately 1 square of 1 oz copper.
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 5 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator block diagram vdd ce vout gnd soft-start fold-back current limit over temperature protection voltage reference power good detector voltage buffer logic control + ++ + - -- - loop compensation adj ea + ++ + - -- -
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 6 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator electrical characteristics (note 5) BL9110-1.2v electrical characteristics (v dd =2.5v, v out =1.2v, ce=v dd , c in =2.2 f, c out =2.2 f, t a =25c, unless otherwise noted.) parameter symbol conditions min typ max unit input voltage v dd 2.5 6 v -1 +1 output voltage accuracy (note 6) ? v out i out =1ma -2 +2 % current limit i lim 1.0 1.3 a short circuit current i scc v out =0 250 ma quiescent current i q i out =0ma 70 120 ua standby current i stby v ce =gnd, shutdown 0.01 1 ua i out =300ma 420 dropout voltage (note 7) v drop i out =1a 870 mv line regulation (note 8) ?v line 2.5vv dd 6v, i out =100ma 0.05 0.5 %/v load regulation (note 9) ?v load 1mai out 1a 20 mv output voltage (note 10) temperature coefficient tc vout i out =100ma -40ct85c 100 ppm/c logic low v il shutdown 0.4 v ce input threshold logic high v ih start up 1.0 v ce pull-down resistance r ce 5 mp output noise voltage e no 10hz to100khz, i out =1ma 45 v rms f=1khz (vout3.3v) 70 power supply rejection ratio f=1khz (vout>3.3v) psrr 0.2v p-p ripple i out =100ma 60 db thermal shutdown temperature t sd shutdown, temp increasing 165 c thermal shutdown hysteresis t sdhy 30 c output discharge resistance r dsc 50 p note 5: 100% production test at +25c. specifications over the temperature range are guaranteed by design and characterization. note 6: this ic includes two kinds of output voltage accura cy versions. a: 1%, b: 2%. note 7: the required minimum input operating voltag e is equal to v out +v drop , and if v out +v drop <2.5v, the required minimum input operating voltage must be set to 2.5v. v out is the normal output voltage, e.g. v out =2.8v for 2.8v fixed output version. note 8: line regulation is calculated by 1 2 100 out out line dd out v v v v v ? ? ? ? = ? ? ? ? ? where v out1 is the output voltage when v dd1 =6.0v, v out2 is the output voltage when v dd2 = max (v out +0.5v, 2.5v). v dd =v dd1 -v dd2 . note 9: load regulation is calculated by 1 2 load out out v v v ? = ? where v out1 is the output voltage when i out1 =1ma, and v out2 is the output voltage when i out2 =1a. note 10: the temperature coefficient is calculated by out out v out v tc t v ? = ?
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 7 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator BL9110-1.5v electrical characteristics (v dd =2.5v, v out =1.5v, ce=v dd , c in =2.2 f, c out =2.2 f, t a =25c, unless otherwise noted.) parameter symbol conditions min typ max unit input voltage v dd 2.5 6 v -1 +1 output voltage accuracy (note 6) ? v out i out =1ma -2 +2 % current limit i lim 1.0 1.3 a short circuit current i scc v out =0 250 ma quiescent current i q i out =0ma 70 120 ua standby current i stby v ce =gnd, shutdown 0.01 1 ua i out =300ma 260 dropout voltage (note 7) v drop i out =1a 700 mv line regulation (note 8) ?v line 2.5vv dd 6v, i out =100ma 0.05 0.5 %/v load regulation (note 9) ?v load 1mai out 1a 20 mv output voltage (note 10) temperature coefficient tc vout i out =100ma -40ct85c 100 ppm/c logic low v il shutdown 0.4 v ce input threshold logic high v ih start up 1.0 v ce pull-down resistance r ce 5 mp output noise voltage e no 10hz to100khz, i out =1ma 45 v rms f=1khz (vout3.3v) 70 power supply rejection ratio f=1khz (vout>3.3v) psrr 0.2v p-p ripple i out =100ma 60 db thermal shutdown temperature t sd shutdown, temp increasing 165 c thermal shutdown hysteresis t sdhy 30 c output discharge resistance r dsc 50 p note 5: 100% production test at +25c. specifications over the temperature range are guaranteed by design and characterization. note 6: this ic includes two kinds of output voltage accura cy versions. a: 1%, b: 2%. note 7: the required minimum input operating voltag e is equal to v out +v drop , and if v out +v drop <2.5v, the required minimum input operating voltage must be set to 2.5v. v out is the normal output voltage, e.g. v out =2.8v for 2.8v fixed output version. note 8: line regulation is calculated by 1 2 100 out out line dd out v v v v v ? ? ? ? = ? ? ? ? ? where v out1 is the output voltage when v dd1 =6.0v, v out2 is the output voltage when v dd2 = max (v out +0.5v, 2.5v). v dd =v dd1 -v dd2 . note 9: load regulation is calculated by 1 2 load out out v v v ? = ? where v out1 is the output voltage when i out1 =1ma, and v out2 is the output voltage when i out2 =1.0a. note 10: the temperature coefficient is calculated by out out v out v tc t v ? = ?
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 8 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator BL9110-1.8v electrical characteristics (v dd =2.8v, v out =1.8v, ce=v dd , c in =2.2 f, c out =2.2 f, t a =25c, unless otherwise noted.) parameter symbol conditions min typ max unit input voltage v dd 2.5 6 v -1 +1 output voltage accuracy (note 6) ? v out i out =1ma -2 +2 % current limit i lim 1.0 1.3 a short circuit current i scc v out =0 250 ma quiescent current i q i out =0ma 70 120 ua standby current i stby v ce =gnd, shutdown 0.01 1 ua i out =300ma 180 dropout voltage (note 7) v drop i out =1a 570 mv line regulation (note 8) ?v line 2.5vv dd 6v, i out =100ma 0.05 0.5 %/v load regulation (note 9) ?v load 1mai out 1a 20 mv output voltage (note 10) temperature coefficient tc vout i out =100ma -40ct85c 100 ppm/c logic low v il shutdown 0.4 v ce input threshold logic high v ih start up 1.0 v ce pull-down resistance r ce 5 mp output noise voltage e no 10hz to100khz, i out =1ma 45 v rms f=1khz (vout3.3v) 70 power supply rejection ratio f=1khz (vout>3.3v) psrr 0.2v p-p ripple i out =100ma 60 db thermal shutdown temperature t sd shutdown, temp increasing 165 c thermal shutdown hysteresis t sdhy 30 c output discharge resistance r dsc 50 p note 5: 100% production test at +25c. specifications over the temperature range are guaranteed by design and characterization. note 6: this ic includes two kinds of output voltage accura cy versions. a: 1%, b: 2%. note 7: the required minimum input operating voltag e is equal to v out +v drop , and if v out +v drop <2.5v, the required minimum input operating voltage must be set to 2.5v. v out is the normal output voltage, e.g. v out =2.8v for 2.8v fixed output version. note 8: line regulation is calculated by 1 2 100 out out line dd out v v v v v ? ? ? ? = ? ? ? ? ? where v out1 is the output voltage when v dd1 =6.0v, v out2 is the output voltage when v dd2 = max (v out +0.5v, 2.5v). v dd =v dd1 -v dd2 . note 9: load regulation is calculated by 1 2 load out out v v v ? = ? where v out1 is the output voltage when i out1 =1ma, and v out2 is the output voltage when i out2 =1.0a. note 10: the temperature coefficient is calculated by out out v out v tc t v ? = ?
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 9 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator BL9110-2.5v electrical characteristics (v dd =3.5v, v out =2.5v, ce=v dd , c in =2.2 f, c out =2.2 f, t a =25c, unless otherwise noted.) parameter symbol conditions min typ max unit input voltage v dd 2.5 6 v -1 +1 output voltage accuracy (note 6) ? v out i out =1ma -2 +2 % current limit i lim 1.0 1.3 a short circuit current i scc v out =0 250 ma quiescent current i q i out =0ma 70 120 ua standby current i stby v ce =gnd, shutdown 0.01 1 ua i out =300ma 140 dropout voltage (note 7) v drop i out =1a 440 mv line regulation (note 8) ?v line 3.0vv dd 6v, i out =100ma 0.05 0.5 %/v load regulation (note 9) ?v load 1mai out 1a 20 mv output voltage (note 10) temperature coefficient tc vout i out =100ma -40ct85c 100 ppm/c logic low v il shutdown 0.4 v ce input threshold logic high v ih start up 1.0 v ce pull-down resistance r ce 5 mp output noise voltage e no 10hz to100khz, i out =1ma 45 v rms f=1khz (vout3.3v) 70 power supply rejection ratio f=1khz (vout>3.3v) psrr 0.2v p-p ripple i out =100ma 60 db thermal shutdown temperature t sd shutdown, temp increasing 165 c thermal shutdown hysteresis t sdhy 30 c output discharge resistance r dsc 50 p note 5: 100% production test at +25c. specifications over the temperature range are guaranteed by design and characterization. note 6: this ic includes two kinds of output voltage accura cy versions. a: 1%, b: 2%. note 7: the required minimum input operating voltag e is equal to v out +v drop , and if v out +v drop <2.5v, the required minimum input operating voltage must be set to 2.5v. v out is the normal output voltage, e.g. v out =2.8v for 2.8v fixed output version. note 8: line regulation is calculated by 1 2 100 out out line dd out v v v v v ? ? ? ? = ? ? ? ? ? where v out1 is the output voltage when v dd1 =6.0v, v out2 is the output voltage when v dd2 = max (v out +0.5v, 2.5v). v dd =v dd1 -v dd2 . note 9: load regulation is calculated by 1 2 load out out v v v ? = ? where v out1 is the output voltage when i out1 =1ma, and v out2 is the output voltage when i out2 =1.0a. note 10: the temperature coefficient is calculated by out out v out v tc t v ? = ?
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 10 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator BL9110-3.3v electrical characteristics (v dd =4.3v, v out =3.3v, ce=v dd , c in =2.2 f, c out =2.2 f, t a =25c, unless otherwise noted.) parameter symbol conditions min typ max unit input voltage v dd 2.5 6 v -1 +1 output voltage accuracy (note 6) ? v out i out =1ma -2 +2 % current limit i lim 1.0 1.3 a short circuit current i scc v out =0 250 ma quiescent current i q i out =0ma 70 120 ua standby current i stby v ce =gnd, shutdown 0.01 1 ua i out =300ma 110 dropout voltage (note 7) v drop i out =1a 350 mv line regulation (note 8) ?v line 3.8vv dd 6v, i out =100ma 0.05 0.5 %/v load regulation (note 9) ?v load 1mai out 1a 20 mv output voltage (note 10) temperature coefficient tc vout i out =100ma -40ct85c 100 ppm/c logic low v il shutdown 0.4 v ce input threshold logic high v ih start up 1.0 v ce pull-down resistance r ce 5 mp output noise voltage e no 10hz to100khz, i out =1ma 45 v rms f=1khz (vout3.3v) 70 power supply rejection ratio f=1khz (vout>3.3v) psrr 0.2v p-p ripple i out =100ma 60 db thermal shutdown temperature t sd shutdown, temp increasing 165 c thermal shutdown hysteresis t sdhy 30 c output discharge resistance r dsc 50 p note 5: 100% production test at +25c. specifications over the temperature range are guaranteed by design and characterization. note 6: this ic includes two kinds of output voltage accura cy versions. a: 1%, b: 2%. note 7: the required minimum input operating voltag e is equal to v out +v drop , and if v out +v drop <2.5v, the required minimum input operating voltage must be set to 2.5v. v out is the normal output voltage, e.g. v out =2.8v for 2.8v fixed output version. note 8: line regulation is calculated by 1 2 100 out out line dd out v v v v v ? ? ? ? = ? ? ? ? ? where v out1 is the output voltage when v dd1 =6.0v, v out2 is the output voltage when v dd2 = max (v out +0.5v, 2.5v). v dd =v dd1 -v dd2 . note 9: load regulation is calculated by 1 2 load out out v v v ? = ? where v out1 is the output voltage when i out1 =1ma, and v out2 is the output voltage when i out2 =1.0a. note 10: the temperature coefficient is calculated by out out v out v tc t v ? = ? .
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 11 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator BL9110-5.0v electrical characteristics (v dd =6.0v, v out =5.0v, ce=v dd , c in =2.2 f, c out =2.2 f, t a =25c, unless otherwise noted.) parameter symbol conditions min typ max unit input voltage v dd 2.5 6 v -1 +1 output voltage accuracy (note 6) ? v out i out =1ma -2 +2 % current limit i lim 1.0 1.3 a short circuit current i scc v out =0 250 ma quiescent current i q i out =0ma 70 120 ua standby current i stby v ce =gnd, shutdown 0.01 1 ua i out =300ma 100 dropout voltage (note 7) v drop i out =1a 340 mv line regulation (note 8) ?v line 5.5vv dd 6v, i out =100ma 0.05 0.5 %/v load regulation (note 9) ?v load 1mai out 1a 20 mv output voltage (note 10) temperature coefficient tc vout i out =100ma -40ct85c 100 ppm/c logic low v il shutdown 0.4 v ce input threshold logic high v ih start up 1.0 v ce pull-down resistance r ce 5 mp output noise voltage e no 10hz to100khz, i out =1ma 45 v rms f=1khz (vout3.3v) 70 power supply rejection ratio f=1khz (vout>3.3v) psrr 0.2v p-p ripple i out =100ma 60 db thermal shutdown temperature t sd shutdown, temp increasing 165 c thermal shutdown hysteresis t sdhy 30 c output discharge resistance r dsc 50 p note 5: 100% production test at +25c. specifications over the temperature range are guaranteed by design and characterization. note 6: this ic includes two kinds of output voltage accura cy versions. a: 1%, b: 2%. note 7: the required minimum input operating voltag e is equal to v out +v drop , and if v out +v drop <2.5v, the required minimum input operating voltage must be set to 2.5v. v out is the normal output voltage, e.g. v out =2.8v for 2.8v fixed output version. note 8: line regulation is calculated by 1 2 100 out out line dd out v v v v v ? ? ? ? = ? ? ? ? ? where v out1 is the output voltage when v dd1 =6.0v, v out2 is the output voltage when v dd2 = max (v out +0.5v, 2.5v). v dd =v dd1 -v dd2 . note 9: load regulation is calculated by 1 2 load out out v v v ? = ? where v out1 is the output voltage when i out1 =1ma, and v out2 is the output voltage when i out2 =1.0a. note 10: the temperature coefficient is calculated by out out v out v tc t v ? = ? .
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 12 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator typical performance characteristic (v dd =v out +1v, and if v out <1.5v, v dd =2.5v ce=v dd , c in =2.2 f, c out =2.2 f, t a =25c, unless otherwise noted.) 0 1 2 3 4 5 6 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 BL9110-1.0v output voltage vs. input voltage i out =1ma i out =99ma i out =300ma i out =1a output voltage (v) input voltage (v) 0.0 0.2 0.4 0.6 0.8 1.0 0 50 100 150 200 250 300 350 400 450 500 550 -40 o c 25 o c 85 o c dropout voltage (mv) output current (a) dropout voltage vs. output current BL9110-3.3v 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 i out =1ma i out =99ma i out =300ma output voltage (v) input voltage (v) BL9110-3.3v output voltage vs. input voltage -40 -20 0 20 40 60 80 3.20 3.25 3.30 3.35 3.40 BL9110-3.3v output voltage (v) temperature ( o c) i out =1ma i out =100ma output voltage vs. temperature -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 0 20 40 60 80 BL9110-3.3v quiescent current (ua) temperature ( o c) quiescent current vs. temperature 3.5 4.0 4.5 5.0 5.5 6.0 60 65 70 75 80 85 90 95 100 BL9110-3.3v quiescent current (ua) input voltage (v) quiescent current vs. input voltage
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 13 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 BL9110-3.3v output voltage (v) output current (a) output voltage vs. output current turn on transient response ch1: en pin voltage (v) ch2: input inrush current (ma) ch4: output voltage (v) turn off transient response ch1: en pin voltage (v) ch4: output voltage (v) turn off transient response ch1: en pin voltage (v) ch4: output voltage (v) 100ma, resistive load no load load transient response ch2: output current (ma) ch4: output voltage (mv) 100ma 500ma load transient response ch2: output current (ma) ch4: output voltage (mv) 50ma 100ma b l9110 - 3.3v b l9110 - 3.3v BL9110-3.3v BL9110-3.3v b l9110 - 3.3v
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 14 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator line transient response i out =1ma ch2: input voltage (v) ch4: output voltage (mv) line transient response i out =100ma ch2: input voltage (v) ch4: output voltage (mv) b l9110 - 3.3v BL9110-3.3v
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 15 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator applications information the BL9110 is a low dropout cmos-based positive voltage regulator that operates the input voltage from +2.5v to 6.0v. output voltages are optional ranging from 1.0v to 5.0v, and can supply current up to 1.0 a. enable function the BL9110 is shutdown by pulling the ce input low, and turn on by driving the input high. if this feature is not be used, the ce input should be floating or tied to vdd to keep the regulator on at all times. programming the BL9110 adjustable ldo regulator the BL9110 is available in two types, either fixed or adjustable output voltage. the output range of the adjustable types is from 1v to 5v. the output voltage of the BL9110 adjustable regulator is programmed using an external resistor divider as show in figure as below. the output voltage is calculated using equation as below: 1 1 2 out ref r v v r ? ? = + ? ? ? ? where v ref =1v is the internal reference voltage. resistors r1 and r2 should be chosen for approximately 50ua divider current. lower value resistors can be used for improved noise performance, but the solution consumes more power. higher resistor values should be avoided as leakage current at adj increases the output voltage error. the recommended design procedure is to choose r2=20k p to set the divider current at 50ua, and then calculate r1 using equation as below: 1 1 2 out ref v r r v ? ? = ? ? ? ? ? a small compensation capacitor c3 placed between vout and adj may improve the stability of the adjustable. the suggested value of this capacitor is about 10pf to 22pf. output voltage programming guide output voltagte r1 r2 1.8v 16 kp 20 kp 2.5v 30 kp 20 kp 3.3v 51 kp 22 kp 3.6v 62 kp 24 kp BL9110 adjustable ldo regulator programming thermal protection thermal overload protection limits total power dissipation in the BL9110. when the junction temperature exceeds t j =165c, the otp circuit starts the thermal shutdown function and turns the pass element off allowing the ic to cool. the otp circuit turns on the pass element again after ics junction temperature cool by 30c, result in a pulsed output during continuous thermal
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 16 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator overload conditions. thermal-overloaded protection is designed to protect the BL9110 in the event of fault conditions. do not exceed the absolute maximum junction temperature rating of t j =125c for continuous operation. the build-in fold-back current limit protection circuit will reduce current value as output voltage drops. when output is shorted to ground, current limit is reduced to 250ma, avoiding damaging the device. operating region and power dissipation the maximum power dissipation of BL9110 depends on the thermal resistance of the case and circuit board, the temperature difference between the die junction and ambient air, and the rate of airflow. the power dissipation across the device is p d = (v dd ?v out ) i out + v dd i q the maximum power dissipation is: p d (max) = (t j (max) ? t a ) / ja where t j (max) is the maximum operation junction temperature 125c, t a is the ambient temperature and the ja is the junction to ambient thermal resistance. the gnd pin of the BL9110 performs the dual function of providing an electrical connection to ground and channeling heat away. connect the gnd pin to ground using a large pad or ground plane. capacitor selection and regulator stability like any low-dropout regulator, the external capacitors used with the BL9110 must be carefully selected for regulator stability and performance. the BL9110 requires an output capacitor between the vout and gnd pins for phase compensation. using a capacitor whose value is 1f on the BL9110 input and the amount of capacitance can be increased without limit. the input capacitor must be located a distance of not more than 0.5 inch from the input pin of the ic and returned to a clean analog ground. any good quality ceramic or tantalum can be used for this capacitor. the capacitor with larger value and lower esr (equivalent series resistance) provides better psrr and line-transient response. the output capacitor must meet both requirements for minimum amount of capacitance and esr in all ldo applications. the BL9110 is designed specifically to work with low esr ceramic output capacitor in space-saving and performance consideration. in the BL9110, phase compensation is made with the output capacitor for securing stable operation even if the load current is varied. for this purpose, use a 2.2uf capacitor between vout pin and gnd pin as close as possible. load-transient considerations the BL9110 load-transient response graphs show two components of the output response: a dc shift from the output impedance due to the load current change, and the transient response. the dc shift is quite small due to the excellent load regulation of the ic. typical output voltage transient spike for a step change in the load current from 0ma to 50ma is tens of mv,
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 17 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator depending on the esr of the output capacitor. increasing the output capacitor's value and decreasing the esr attenuates the overshoot. input-output (dropout) voltage a regulator's minimum input-output voltage differential (or dropout voltage) determines the lowest usable supply voltage. in battery-powered systems, this will determine the useful end-of-life battery voltage. because the BL9110 uses a p-channel mosfet pass transistor, the dropout voltage is a function of drain-to-source on resistance [r ds(on) ] multiplied by the load current. layout considerations to improve ac performance such as psrr, output noise, and transient response, it is recommended that the pcb be designed with separate ground planes for vdd and vout, with each ground plane connected only at the gnd pin of the device. make vdd and gnd lines sufficiently wide. if their impedance is high, noise pickup or unstable operation may result. connect a capacitor c1 between vdd and gnd pin, as close as possible to the pins. set external components, especially the output capacitor c2, as close as possible to the ic, and make wiring as short as possible. BL9110 sot89-5 pcb layout for reference top layer bottom layer
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 18 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator package description dimensions in millimeters symbol min nom max a 0.7 0.75 0.8 a1 0.02 0.05 b 0.25 0.3 0.35 c 0.18 0.2 0.25 d 1.95 2 2.05 d2 1 1.45 e 0.65bsc nd 1.30bsc e 1.95 2 2.05 e2 0.50 0.85 l 0.25 0.30 0.40 h 0.1 0.15 0.2 dfn-6 surface mount package dfn-6
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 19 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator dimensions in millimeters dimensions in inches symbol min max min max a 1.397 1.600 0.055 0.063 b 0.356 0.508 0.014 0.020 b1 0.406 0.533 0.016 0.021 b 2.388 2.591 0.094 0.102 c 3.937 4.242 0.155 0.167 c1 0.787 1.194 0.031 0.047 d 4.394 4.597 0.173 0.181 d1 1.397 1.702 0.055 0.067 e 1.500 typ. 0.060 typ. h 0.356 0.432 0.014 0.017 sot89-5 surface mount package sot89-5
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 20 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator package sot223-3 devices per reel 2500 sot-223-3
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 21 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator sot-223-5
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 22 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator package to252-3 devices per reel 2500 to-252-3
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 23 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator to-252-5 dimensions in millimeters symbol min nom max a1 0.05 0.15 0.2 5 a2 2.1 2.3 2.5 a3 0.5 0.6 0.7 b 0.46 0.6 b1 0.45 0.5 0.55 c 0. 49 0. 56 c1 0.48 0.5 0. 52 d 6.3 6.5 6.7 d1 5.30 ref e1 5.30 5.50 5.70 e 1.27bsc l 1.40 1.50 1.60 l1 3.0 3.1 3.2 l2 1.40bsc 0 8
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 24 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator to-263-3
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 25 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator to-220-3
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 26 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator sot-89-3
ppmic bu www.belling.com.cn BL9110 rev 1.2 belling proprietary information. unauthorized photocopy and duplication prohibited 07/2011 ?2011 belling all rights reserved 27 BL9110 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low qu 1a low dropout, low quiescent current iescent current iescent current iescent current high psrr cmos linear high psrr cmos linear high psrr cmos linear high psrr cmos linear regulator regulator regulator regulator to92-3

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