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bl9 1 98 3 33 30 00 00 00 0m mm ma a a a u uu ul ll ltr trtr tra aa a- -- -l ll lo oo ow ww w n nn no oo oise, ise,ise, ise, u uu ul ll ltr trtr tra aa a- -- -f ff fast astast ast c cc cm mm mos osos os ld ldld ldo oo o reg regreg regul ulul ula aa at tt to oo or rr r bl9198 rev 2.1 3/2017 www.belling.com.cn belling proprietary information. unauthorized photo copy and duplication prohibited ?2011 belling all rights reserved 1 features ultra-low noise for rf application ultra-fast response in line/load transient <0.01 a standby current when shutdown. low dropout:210mv@300ma wide operating voltage ranges:2v to 6v ttl-logic-controlled shutdown input low temperature coefficient current limiting protection thermal shutdown protection only 1 f output capacitor required for stability high power supply rejection ratio custom voltage available fast output discharge available in 5-lead sot-23 and sc-70 package applications cellular and smart phones battery-powered equipment laptop, palmtops, notebook computers ordering information bl9198 xx x x x xxx hand-held instruments pcmcia cards mp3/mp4/mp5 players portable information appliances description the bl9198 is designed for portable rf and wireless applications with demanding perfor- mance and space requirements. the bl9198 performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. regulator ground current increases only slightly in dropout, further prolonging the battery life. the bl9198 also works with low-esr ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-he ld wireless devices. the bl9198 consumes less than 0.01a in shutdown mode and has fast turn-on time less than 50s. the other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. available in the 5-lead sc-70 and sot-23 packages. typical application bl9198 28 aa package: rn: sot-23-5 urn: sc-70-5 features vin c1 1uf 1 vin 2 gnd vout 5 vout c2 1uf p: standard (default, lead free) c: customized enable option: a: active high with internal 8 m? pull down b: active low with internal 8 m? pull up chip enable 3 en bl9198 nc 4 output voltage accuracy a: 1% b: 2% output voltage: 12: 1.2v 13:1.3v 15: 1.5v 18:1.8v 25:2.5v 27:2.7v 28:2.8v 285: 2.85v 30: 3.0v 32:3.2v 33:3.3v 50:5.0v ct: custom fixed output (50mv step) application hints: output capacitor (c2 2.2uf) is recommended in bl9198-1.2v, bl9198-1.3v, bl9198-1.5v and bl9198-1.8v application to assure the stability of circuit.
bl9 1 98 3 33 30 00 00 00 0m mm ma a a a u uu ul ll ltr trtr tra aa a- -- -l ll lo oo ow ww w n nn no oo oise, ise,ise, ise, u uu ul ll ltr trtr tra aa a- -- -f ff fast astast ast c cc cm mm mos osos os ld ldld ldo oo o reg regreg regul ulul ula aa at tt to oo or rr r bl9198 rev 2.1 3/2017 www.belling.com.cn belling proprietary information. unauthorized photo copy and duplication prohibited ?2011 belling all rights reserved 2 sot23 sot23sot23 sot23 - -- - 5/sc70 5/sc705/sc70 5/sc70 - -- - 5 5 5 5 top toptop top v vv v i ii i e ee e w ww w v in 1 5 vou t gn d 2 en 3 4 nc absolute maximum rating (note 1) input supply voltage (vin) -0.3v to +6v en pin input voltage -0.3v to vin output voltages -0.3v to vin+0.3v output current 300ma maximum junction temperature 150c operating temperature range (note2) -40c to 85c storage temperature range -65c to 125c lead temperature (soldering, 10s) 300c package information thermal resistance (note 4) : package ? ja ? jc sot23-5 250 c/w 130c/w sc70-5 333 c/w 170c/w part number top mark temp range bl9198-12 (note3) d a y w -40c to +85c bl9198-13 d b y w -40c to +85c bl9198-15 d c y w -40c to +85c bl9198-18 d d y w -40c to +85c bl9198-25 d e y w -40c to +85c bl9198-27 d f y w -40c to +85c bl9198-28 d g y w -40c to +85c bl9198-285 d h y w -40c to +85c bl9198-30 d i y w -40c to +85c bl9198-32 d j y w -40c to +85c bl9198-33 d k y w -40c to +85c bl9198-50 d l y w -40c to +85c a b c d e f g h i j k l 1.2v 1.3v 1.5v 1.8v 2.5v 2.7v 2.8v 2.85v 3.0v 3.2v 3.3v 5.0v y 4 5 6 0 1 year 20 14 201 5 2016 20 20 2021 w a y z a y z week 1 25 26 27 51 52 note 1: absolute maximum ratings are those values beyond wh ich the life of a device may be impaired. note 2: the bl9198 is guaranteed to meet performance specif ications from 0c to 70c. specifications over the C40c to 85c operating temperature range are assured by design, characterization and correlation with stati stical process controls. note 3: d: product code of bl9198 a-l: voltage code y: year of wafer manufacturing w: week of wafer manufactur ing. note 4: thermal resistance is specified with approx imately 1 square of 1 oz copper. marking
bl9 1 98 3 33 30 00 00 00 0m mm ma a a a u uu ul ll ltr trtr tra aa a- -- -l ll lo oo ow ww w n nn no oo oise, ise,ise, ise, u uu ul ll ltr trtr tra aa a- -- -f ff fast astast ast c cc cm mm mos osos os ld ldld ldo oo o reg regreg regul ulul ula aa at tt to oo or rr r bl9198 rev 2.1 3/2017 www.belling.com.cn belling proprietary information. unauthorized photo copy and duplication prohibited ?2011 belling all rights reserved 3 quick start current limit and thermal protection vref - error amplifier + quick start vref current limit and thermal protection - error amplifier + pin description pin name function 1 vin power input voltage. 2 gnd ground. 3 en chip enable pin with two options. a: active high with internal 8 m? pull down b: active low with internal 8 m? pull up 4 nc no connection. 5 vout output voltage. block diagram vin vin vout en gnd en vout gnd bl9198 xx xa bl9198 xx xb
bl9 1 98 3 33 30 00 00 00 0m mm ma a a a u uu ul ll ltr trtr tra aa a- -- -l ll lo oo ow ww w n nn no oo oise, ise,ise, ise, u uu ul ll ltr trtr tra aa a- -- -f ff fast astast ast c cc cm mm mos osos os ld ldld ldo oo o reg regreg regul ulul ula aa at tt to oo or rr r bl9198 rev 2.1 3/2017 www.belling.com.cn belling proprietary information. unauthorized photo copy and duplication prohibited ?2011 belling all rights reserved 4 ? v ? v v electrical characteristics (note 5) (v in =3.6v, en=v in, c in =c out =1 f, t a =25 , unless otherwise noted.) parameter symbol conditions min typ max unit input voltage v in 2 6 v output voltage accuracy (note 6) ? v out v in= 3.6v, i out =1ma -1 +1 % -2 +2 current limit i lim r load =1 ? 400 430 ma quiescent current i q v en >1.2v, i out =0ma 90 130 a dropout voltage v drop i out =200ma, v out =2.8v 130 180 mv i out =300ma, v out =2.8v 210 300 line regulation (note 7) ?v line v in =3.6v to 5.5v i out =1ma 0.05 0.17 %/v load regulation (note 8) ?v load 1ma bl9 1 98 3 33 30 00 00 00 0m mm ma a a a u uu ul ll ltr trtr tra aa a- -- -l ll lo oo ow ww w n nn no oo oise, ise,ise, ise, u uu ul ll ltr trtr tra aa a- -- -f ff fast astast ast c cc cm mm mos osos os ld ldld ldo oo o reg regreg regul ulul ula aa at tt to oo or rr r bl9198 rev 2.1 3/2017 www.belling.com.cn belling proprietary information. unauthorized photo copy and duplication prohibited ?2011 belling all rights reserved 5 v in =3.6v c in =c out =1uf c in =c out =1uf tj=8 5 c tj=25 c tj= - 40 c v in =3.6v c in =c out =1uf quiescent current(ua) typical performance characteristics 3.0 2.9 output voltage vs. temperature 140 130 120 quiescent current vs. temperature 110 2.8 100 2.7 90 80 2.6 70 2.5 -50 -25 0 25 50 75 100 125 temperaute( c ) 60 -50 -25 0 25 50 75 100 125 temperature( c) 300 250 dropout voltage vs. load current 0 -10 -20 psrr 200 -30 -40 150 -50 100 -60 -70 50 -80 0 en pin shutdown threshold vs. temperature 1.05 1.00 500 480 460 current limit vs. input voltage 0.95 0.90 440 420 400 380 0.85 360 0.80 340 0.75 -50 -25 0 25 50 75 100 125 temperature( c) 320 300 3.0 3.5 4.0 4.5 5.0 5.5 6.0 input voltage(v) v in =3.6v c in =c out =1uf v in =4.2v c in =1uf,c out =1uf,x7r i load = 1 m a i load =100m a i load = 2 0 0 m a c in =c out =1uf v out =2.8v dropout voltage(mv) en pin shutdown threshold(v) output voltage(v) psrr(db) current limit(ma) 0 50 100 150 200 250 - 9 0 300 10 100 1000 10000 100000 load current(m a) frequency(hz)
bl9 1 98 3 33 30 00 00 00 0m mm ma a a a u uu ul ll ltr trtr tra aa a- -- -l ll lo oo ow ww w n nn no oo oise, ise,ise, ise, u uu ul ll ltr trtr tra aa a- -- -f ff fast astast ast c cc cm mm mos osos os ld ldld ldo oo o reg regreg regul ulul ula aa at tt to oo or rr r bl9198 rev 2.1 3/2017 www.belling.com.cn belling proprietary information. unauthorized photo copy and duplication prohibited ?2011 belling all rights reserved 6
bl9 1 98 3 33 30 00 00 00 0m mm ma a a a u uu ul ll ltr trtr tra aa a- -- -l ll lo oo ow ww w n nn no oo oise, ise,ise, ise, u uu ul ll ltr trtr tra aa a- -- -f ff fast astast ast c cc cm mm mos osos os ld ldld ldo oo o reg regreg regul ulul ula aa at tt to oo or rr r bl9198 rev 2.1 3/2017 www.belling.com.cn belling proprietary information. unauthorized photo copy and duplication prohibited ?2011 belling all rights reserved 7 3 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 v out vs.v in 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 input voltage(v) c in = c out =1uf i load=1 m a iload=100m a iload=300ma output voltage(v)
bl9198 rev 2.1 3/2017 www.belling.com.cn belling proprietary information. unauthorized photo copy and duplication prohibited ?2011 belling all rights reserved 8 bl9 1 98 3 33 30 00 00 00 0m mm ma a a a u uu ul ll ltr trtr tra aa a- -- -l ll lo oo ow ww w n nn no oo oise, ise,ise, ise, u uu ul ll ltr trtr tra aa a- -- -f ff fast astast ast c cc cm mm mos osos os ld ldld ldo oo o reg regreg regul ulul ula aa at tt to oo or rr r 3 applications information like any low-dropout regulator, the ex- ternal capacitors used with the bl9198 must be carefully selected for regulator stability and performance. using a capac- itor whose value is > 1f on the bl9198 input and the amount of capacitance can be increased without limit. the input cap- acitor 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 (equi- valent series resistance) provides better psrr and line-transient response. the output capacitor must meet both requi- rements for minimum amount of capa- citance and esr in all ldos application. the bl9198 is designed specifically to work with low esr ceramic output capa- citor in space-saving and performance consideration. using a ceramic capacitor whose value is at least 1f with esr is > 25m? on the bl9198 output ensures stability. the bl9198 still works well with output capacitor of other types due to the wide stable esr range. output capacitor of larger capacitance can reduce noise and improve load transient response, stability, and psrr. the output capacitor should be located not more than 0.5 inch from the v out pin of the bl9198 and returned to a clean analog ground. enable function the bl9198 features an ldo regulator en- able/disable function. to assure the ldo regulator will switch on; the en turn on control level must be greater than 1.2 volts. the ldo regulator will go into the shut- down mode when the voltage on the en pin falls below 0.4 volts. for to protect the system, the bl9198 have a quick dis- charge function. if the enable function is not needed in a specific application, it may be tied to v in to keep the ldo regulator in a continuously on state. thermal considerations thermal protection limits power dissipation in bl9198. when the operation junction temperature exceeds 165c, the otp circuit starts the thermal shutdown function turn the pass element off. the pass element turns on again after the junction temperature cools by 30c. for continue operation, do not exceed absolute maximum operation junction temperature 125c. the power dissipation definition in device 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. for recommended operating conditions spe- cification of bl9198, where t j (max) is the maximum junction temperature of the die (125c) and t a is the maximum ambient temperature. the junction to ambient the- rmal resistance ( ja is layout dependent) for sot-23-5 package is 250c/w, sc-70- 5 package is 333c/w, on standard jedec 51-3 thermal test board. the max- imum power dissipation at t a = 25c can be calculated by following formula: p d (max) = (125c?25c)/333 = 300mw (sc-70-5)
bl9198 rev 2.1 3/2017 www.belling.com.cn belling proprietary information. unauthorized photo copy and duplication prohibited ?2011 belling all rights reserved 9 bl9 1 98 3 33 30 00 00 00 0m mm ma a a a u uu ul ll ltr trtr tra aa a- -- -l ll lo oo ow ww w n nn no oo oise, ise,ise, ise, u uu ul ll ltr trtr tra aa a- -- -f ff fast astast ast c cc cm mm mos osos os ld ldld ldo oo o reg regreg regul ulul ula aa at tt to oo or rr r 3 p d (max) = (125c?25c)/250 = 400mw (sot-23-5) the maximum power dissipation depends on operating ambient temperature for fixed t j (max) and thermal resistance ja . it is also useful to calculate the junction of temperature of the bl9198 under a set of specific conditions. in this example let the input voltage v in =3.3v, the output current io=300ma and the case temperature t a =40c measured by a thermal couple during operation. the power dissipation for the v out =2.8v version of the bl9198 can be calculated as: p d = (3.3v?2.8v) 300ma+3.6v100ua =150mw and the junction temperature, t j , can be calculated as follows: t j =t a +p d ja =40c+0.15w250c/w =40c+37.5c=77.5c bl9198 rev 2.1 3/2017 www.belling.com.cn belling proprietary information. unauthorized photo copy and duplication prohibited ?2011 belling all rights reserved 10 bl9 1 98 3 33 30 00 00 00 0m mm ma a a a u uu ul ll ltr trtr tra aa a- -- -l ll lo oo ow ww w n nn no oo oise, ise,ise, ise, u uu ul ll ltr trtr tra aa a- -- -f ff fast astast ast c cc cm mm mos osos os ld ldld ldo oo o reg regreg regul ulul ula aa at tt to oo or rr r 3 bl9198-2.8v layout circuit vin vout vin 1 vin 5 vout c4 c1 bl9198 c2 1uf 1uf 2 gnd 1uf jp 3 4 1 vin en nc 1 2 2 3 3 top layer layout bottom layer layout
bl9198 rev 2.1 3/2017 www.belling.com.cn belling proprietary information. unauthorized photo copy and duplication prohibited ?2011 belling all rights reserved 11 bl9 1 98 3 33 30 00 00 00 0m mm ma a a a u uu ul ll ltr trtr tra aa a- -- -l ll lo oo ow ww w n nn no oo oise, ise,ise, ise, u uu ul ll ltr trtr tra aa a- -- -f ff fast astast ast c cc cm mm mos osos os ld ldld ldo oo o reg regreg regul ulul ula aa at tt to oo or rr r 3 package description symbol dimensions in millimeters dimensions in inches min max min max a 0.800 1.100 0.031 0.044 a1 0.000 0.100 0.000 0.004 b 1.150 1.350 0.045 0.054 b 0.150 0.400 0.006 0.016 c 1.800 2.450 0.071 0.096 d 1.800 2.250 0.071 0.089 e 0.650 0.026 h 0.080 0.260 0.003 0.010 l 0.210 0.460 0.008 0.018 sc-70-5 surface mount package
bl9198 rev 2.1 3/2017 www.belling.com.cn belling proprietary information. unauthorized photo copy and duplication prohibited ?2011 belling all rights reserved 12 bl9 1 98 3 33 30 00 00 00 0m mm ma a a a u uu ul ll ltr trtr tra aa a- -- -l ll lo oo ow ww w n nn no oo oise, ise,ise, ise, u uu ul ll ltr trtr tra aa a- -- -f ff fast astast ast c cc cm mm mos osos os ld ldld ldo oo o reg regreg regul ulul ula aa at tt to oo or rr r 3 package type sc70-5 number of devices per reel 3000 tape dimension taping reel dimension
bl9198 rev 2.1 3/2017 www.belling.com.cn belling proprietary information. unauthorized photo copy and duplication prohibited ?2011 belling all rights reserved 13 bl9 1 98 3 33 30 00 00 00 0m mm ma a a a u uu ul ll ltr trtr tra aa a- -- -l ll lo oo ow ww w n nn no oo oise, ise,ise, ise, u uu ul ll ltr trtr tra aa a- -- -f ff fast astast ast c cc cm mm mos osos os ld ldld ldo oo o reg regreg regul ulul ula aa at tt to oo or rr r 3 symbol dimensions in millimeters dimensions in inches min max min max a 0.889 1.295 0.035 0.051 a1 0.000 0.152 0.000 0.006 b 1.397 1.803 0.055 0.071 b 0.356 0.559 0.014 0.022 c 2.591 2.997 0.102 0.118 d 2.692 3.099 0.106 0.122 e 0.838 1.041 0.033 0.041 h 0.080 0.254 0.003 0.010 l 0.300 0.610 0.012 0.024 sot-23-5 surface mount package
bl9198 rev 2.1 3/2017 www.belling.com.cn belling proprietary information. unauthorized photo copy and duplication prohibited ?2011 belling all rights reserved 14 bl9 1 98 3 33 30 00 00 00 0m mm ma a a a u uu ul ll ltr trtr tra aa a- -- -l ll lo oo ow ww w n nn no oo oise, ise,ise, ise, u uu ul ll ltr trtr tra aa a- -- -f ff fast astast ast c cc cm mm mos osos os ld ldld ldo oo o reg regreg regul ulul ula aa at tt to oo or rr r 3 package type sot23-5 number of devices per reel 300 0 tape dimension default: type i type i type ii taping reel dimension

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