BL317B HIGH CURRENT ADJUSTABLE VOLTAGE REGULATOR BL317B DESCRIPTION The B L3 17B is a n ad ju stab le 3 -te rmina l p ositive voltage regu la to r, de signed to sup p ly mo re th an 1 TO-220 1.5A o f ou tp ut c urre nt with vo ltag e a d justab le fro m1.3V ~ 37V. 1 TO-252 FEATURES 1 Outpu t cu rren t up to 1. 5A Outpu t vo lta ge ad ju sta ble fro m 1. 3V to 37V In te rn al sho rt c irc u it p rotec tion In te rn al o ve r te mp eratu re pro tec tio n Safe -A re a c o mpen sa tio n for ou tpu t tran sistor TO-263 1 TO-220F 1 SOT-223 APPLICATIONS P C Moth erboa rd LCD Mon ito r Graph ic Ca rd DVD P la yer Netwo rk In terfa ce Ca rd /S witch Teleco m E qu ip men t P rin te r and o th er P erip hera l Eq u ip men t Page1 1:ADJ; 2 : OUTP UT; 3 : INP UT www.belling.com.cn V1.3 BL317B ORDERING INFORMATION Device Pac kag e S hi ppi ng B L3 17BT TO-220 Tube B L3 17B F TO-220 F Tube B L3 17BY -B TO-252 2500p cs/ Ree l B L3 17BY -T TO-252 80pcs /Tu be B L3 17B K TO-263 -2 L Reel B L3 17BS SOT -223 Reel BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS (Ta =25°C ) * Charac te ristic S ymb o l Inp ut - Ou tpu t Vo ltag e Diffe re nce Min . Max. Unit Vin -V ou t 40 V P ower Dissipa tion Pd In te rn al limite d Opera ting Te mpe ra tu re Range TOP R 0 125 °C Storag e te mp erature TS -65 150 °C Le ad te mpe ra tu re (so ld erin g, 10 sec ) TLEAD 260 °C *: A bso lu te ma ximu m ratin gs a re stre ss ra ting s o nl y and func tio na l d e vice op era tion is not imp lied . Th e d e vic e c ou ld be da mag ed be yo nd Abso lu te ma x imu m ra ting s. Page2 www.belling.com.cn V1.3 BL317B ELECTRICAL CHARACTERISTICS （ V I-VO=5V, 0°C <Tj< 125°C , IO=5 00 mA , IMAX=1.5A,P MAX=20W , unless o the rwise spe c ifie d） P ara mete r Lin e Regu la tion Lo ad Regu la tion Adju stab le P in curre n t Adju stab le P in Curren t Chan ge Refe re nc e Voltag e S ymb o l ∆VO ∆VO Lo ng -te rm Stab ility, TJ=THIGH Min Typ 0.01 Max 0.04 Unit %/V Ta=0 -1 25 °C,3V≤V I-VO ≤40V Ta=25°C VO≤6V 10 mA ≤IO≤IM VO≤5V AX 10 mA ≤IO≤IM VO≤5V AX Ta=0 -1 25 °C VO≤6V 0.02 18 0.4 0.07 25 0.5 mV %/VO 40 70 mV 0.8 46 1.5 100 %/VO µA 2.5V≤V I-VO≤40V, 10 mA ≤Io ≤IMAX,P D≤P MAX 3V≤V I-VO ≤40V, 10 mA ≤IO≤IMAX,P D≤P MAX 2.0 5 µA 1.25 1.30 V IADJ ∆ IADJ VRE F Te mp era ture STT Stab ility Min imu m Lo ad IL(MIN ) Curren t for reg u la tion Max imu m IO (MAX ) outpu t C urre nt RMS No ise v. s. %of Vou t Ripp le Rejec tion Te st c ond ition s Ta=25°C ,3V≤V I-VO≤4 0V 1.20 0.7 VI-VO=40V 3.5 VI-VO≤1 5V,P D≤P MAX 1.5 2.2 0.15 0.4 eN VI-VO≤4 0V,P D≤P MAX, Ta=25°C TA=25°C,1 0HZ≤f≤10 KHZ RR VO=10V,f=120H Z,CA DJ=0 ST VO=10V,f=120H Z,CA DJ=10µ F TA=25°C,1 000 h r 0.00 3 %/VO 10 A 0.01 60 66 mA %/VO dB 75 0.3 1 % Note : Te sting with low du ty pu lse sh ou ld be u sed to a vo id h ea ting e ffec t. Page3 www.belling.com.cn V1.3 BL317B THERMAL DATA P ara me te r Junction -to -A mb ie nt Junction -to -C ase S ymb o l TO-252 TO-220 TO-220 F TO-263 SOT -223 TO-252 TO -22 0 TO -22 0 F TO -26 3 SOT-223 θJA θJC RATING 112 54 44 64 165 12 5 5 5 23 UNITS ℃ /W ℃ /W APPLICATION CIRCUIT Page4 www.belling.com.cn V1.3 BL317B CHARACTERISTICS CURVES Fig.1. Load Regulation vs temperature Fig.2 Adjustment Current vs Temperature 60 0.0 55 Adjustment Current Output Voltage Deviation 0.2 -0.2 -0.4 Vi=15V Vo=10V -0.6 45 40 -0.8 -1.0 0 50 25 50 75 100 35 -50 125 -25 0 Temperature 50 75 100 125 Temperature Fig.3. Dropout Voltage vs InputOutput Voltage Difference 3.0 25 Fig.4 Reference Voltage vs Temperature 1.260 IL=1.5A 1.255 2.5 Reference Voltage Input-Output Voltage Difference △Vo=100mV IL=1A 2.0 IL=500mA IL=200mA 1.250 1.245 1.5 IL=20mA 1.240 1.235 1.0 0 25 50 75 100 125 Temperature Page5 -50 -25 0 25 50 75 100 Temperature www.belling.com.cn V1.3 125 BL317B Taping reel dimension ： Taping dimension ： Page6 www.belling.com.cn V1.3 BL317B PACKAGE DIMENSIONS TO-220 Unit: mm TO-252 Unit: mm Page7 www.belling.com.cn V1.3 BL317B TO-263 Unit: mm Page8 www.belling.com.cn V1.3 BL317B TO-220F Unit: mm Page9 www.belling.com.cn V1.3 BL317B SOT-223 Unit: mm 6.50±0.20 3.00±0.10 0.30±0.05 0.25 2.30 0.71±0.01 4.60±0.10 0～10° Page10 www.belling.com.cn V1.3