BL2950/BL2951 100 mA Low-Dropout Voltage Regulator BL2950/BL2951 DESCRIPTION The B L2 950 /B L2 951 a re mono lith ic in te gra ted vo ltag e reg u la to rs with lo w dro pou t vo ltag e, and lo w q uiescen t cu rren t. It in clude s ma n y fe a tu res tha t su ita ble fo r differe n t a pp lic ations. DIP 8 FEATURES Fix ed ou tp ut ve rsion s, 2.5V, 3V, 3.3V , 3 .6V a nd 5V, a re TO -9 2 a va ila ble. High ac cu ra c y ou tpu t volta ge . Extre me ly lo w q u ie sce nt cu rren t an d d ro pou t voltage . Extre me ly tigh t load an d line regu la tion. Curren t an d the rma l limiting. Very low te mpe ra ture c oeffic ien t. Lo gic con tro lle d shu td own an d err flog a va ila ble fo r 8 p in SOP 8 TO -25 2 pack age . Outpu t vo lta ge p rog ra mma b le for B L295 1. PIN CONFIGURATION SHANGHAI BELLING CO.,LTD http://www.belling.com.cn 1/9 BL2950/BL2951 BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS (Ta =25℃) Charac te ristic Supp ly vo lta ge Fe ed bac k vo ltage Shu tdo wn vo lta ge P ower d issip ation Opera tion ju nc tion te mpera tu re Sto ra ge te mpe ra tu re S ymb o l Vcc VFB VSHDN PD TJ TSTG * Limit -0. 3 ~ + 30 -1. 5 ~ + 30 -0. 3 ~ + 30 In te rn all y Li mited -40 ~ +12 5 -65 ~ +15 0 Unit V V V W ℃ ℃ *: A bso lu te ma ximu m ratin gs a re tho se va lu es be yo nd wh ich th e de vic e c ou ld be perma nen tly d a mage d. Abso lu te max imu m ra tings a re stre ss ra ting s o nly a nd fu nc tion a l de vic e o pe ra tion is no t imp lied . THERMAL DATA Charac te ristic Junction -to -A mb ie nt Junction -to -C ase S ymb o l TO-92 TO-252 SOP 8 DIP 8 TO-92 TO-252 SOP 8 θ JA θ JC Limit 160 92 180 105 83 6 45 SHANGHAI BELLING CO.,LTD http://www.belling.com.cn Unit ℃/W ℃/W 2/9 BL2950/BL2951 ELECTRICAL CHARACTERISTICS (un le ss o th erwise spe cified : V I N =6V, I L =100 µA, C L =1 µ F ,T J = 25℃ ) For All Ver sion Charac te ristic S ymb o l Cond ition s T J = 2 5℃ Outpu t vo lta ge *1 VOUT -25 ℃ ≤ T J ≤ +8 5℃ *1 Outpu t vo lta ge VOUT 100µA≤ I L ≤ 1 00 mA TJ≤ TJ(max) Min . VOUT ×0.98 VOUT ×0.98 VOUT ×0.98 T yp. VOUT VOUT VOUT Max VOUT ×1.02 VOUT ×1.02 VOUT ×1.02 Unit V V Outpu t vo lta ge te mp era ture coe ffic ie nt Lin e reg u la tion ΔVOUT 6V≤ V I N ≤ 30V 0.03 0.1 0.2 pp m /℃ % Lo ad re gu la tio n ΔVOUT 100µA≤ I L ≤ 1 00 mA 0.04 0.1 0.2 % Dropo ut vo ltage VD 50 80 150 380 450 600 Groun d c urre n t IG I L = 100µA 75 120 140 µA I L = 100mA 8 12 14 mA V I N =4 .5V, I L =10 0µA 110 170 200 V O U T =0 160 200 220 µA mA TcVo Dropo ut g rou nd cu rren t Curren t limit Outpu t noise (1 0Hz~10 0kHz ) (B yp ass=0. 01 µF pins 7 I LIM IT eN to 1(BL2951) 20 I L = 100µA I L = 100mA *2 100 C L =1 µ F 430 C L =2 00µ F 160 C L =3 .3µ F 100 mV µV For BL295 1 8p in Ve rsion Only Charac te ristic S ymb o l Refe re nc e voltage VREF Refe re nc e voltage VREF Fe ed bac k p in b ias cu rren t Refe re nc e voltage te mp era ture coe ffic ie nt Fe ed bac k b ias cu rren t te mp era ture coe ffic ie nt Error Co mp ara to r Outpu t lea kag e cu rren t Outpu t lo w vo ltage Thre sh old voltage H yste re sis Cond ition s Ove r te mpe ra tu re *4 Min . T yp. Max Unit 1.22 1.235 1.25 V 1.27 V 40 nA pp m /℃ nA/ ℃ 1 µA mV 1.19 IFB 20 VREF(TC) 50 IFB (TC ) 0.1 IO(LEAK) VOL V O H =3 0V Upper VTHU V I N =4 .5V, I O L =40 0µA *3 Lo we r VTHL *3 VHYS *3 SHANGHAI BELLING CO.,LTD http://www.belling.com.cn 250 3.2 %VO 7.6 15 %VO mV 3/9 BL2950/BL2951 Continuious Charac te ristic S ymb o l Cond ition s Min . T yp. Max 1.3 0.7 V S H D N = 2.4V 30 50 V S H D N = 30V 450 600 3 10 Unit Shutd ow n Inpu t Inp ut log ic voltage Lo w VIL Regu la to r ON High V IH Regu la to r O FF Shu tdo wn p in inpu t curre n t Regu la to r ou tpu t curre n t shu td own ISHDN IDFF V 2.0 V S H D N ≧ 2V, V I N ≦ 30V , V O U T = 0 , Fee dba ck p in tied to 5V Ta p. µA µA * 1 . Add ition a l c ond itio ns fo r 8 -p in ve rsio ns a re FB pin tie d to 5V T A P , Outpu t tie d to Sen se (V O U T =5V ) a nd V S H D N ≤0. 8V *2 . D rop ou t Vo lta ge is defined a s th e inp u t to outpu t diffe re ntia l a t which th e ou tpu t voltage d rop s 100 mV b elow its no mina l va lu e mea su re d a t 1V d iffe re ntia l. *3 . C o mpa ra to r th resh o ld s are e xp re ssed in te rms o f p ercen tage value of vo ltage ou tp u t. *4 . V R E F ≤V O U T ≤(V I N -1 V), 2.3V ≤V I N ≤30V, 10 0µA≤I L ≤100 mA, T J ≤T J ( M A X ) APPLICATION CIRCUITS BL2950-2.5 BL2950-3.0 BL2950-3.3 BL2950-3.6 BL2950-5.0 SHANGHAI BELLING CO.,LTD http://www.belling.com.cn 4/9 BL2950/BL2951 CHARACTERISTICS CURVE SHANGHAI BELLING CO.,LTD http://www.belling.com.cn 5/9 BL2950/BL2951 SHANGHAI BELLING CO.,LTD http://www.belling.com.cn 6/9 BL2950/BL2951 OUTLINE DRAWING DIP8 Un it: mm SOP8 Un it:mm SHANGHAI BELLING CO.,LTD http://www.belling.com.cn 7/9 BL2950/BL2951 TO-25 2 Un it: mm SHANGHAI BELLING CO.,LTD http://www.belling.com.cn 8/9 BL2950/BL2951 TO-92 Un it:mm SHANGHAI BELLING CO.,LTD http://www.belling.com.cn 9/9