BL8071 1.5A Linear Regulator GENERAL DESCRIPTION FEATURES BL8071 series are a group of positive voltage output, high precise, and low power consumption voltage regulator. Voltages are selectable in 100mV steps within a range of 1.2V to 5.0V. It also can be customized on command. BL8071 series have excellent load and line transient response and good temperature characteristics, which can assure the stability of chip and power system. And it uses trimming technique to guarantee output voltage accuracy within ±2%. APPLICATIONS BL8071 series are available in SOT-223 package, which are lead (Pb)- free. LC1459 BL8071 IN Cin www.belling.com.cn GND VOUT Reference Voltage Source Battery Powered Equipment PC Peripherals Wireless Devices Instrumentation BLOCK DIAGRAM TYPICAL APPLICATION VDD Low Quiescent Current: 100uA at 5V High PSRR: 70dB range to 1KHz Low Output Noise: 44uVRMS Low Dropout: 300mV at 1A load Maximum output current: 1.5A Highly Accurate: ±2% Low ESR Ceramic Capacitor Compatible OUT Cout 1 BL8071 ORDERING INFORMATION PIN CONFIGURATION BL8071 □ 1□ 2□ 3□ 4□ 5 Code Product Classification JB:Product Code XX:Output Voltage JBXX LLBYW A: A type LL:LOT NO. B:FAB Code YW:Date Code Product Classification JB:Product Code XX:Output Voltage JBXX LLBYW B: B type LL:LOT NO. B:FAB Code YW:Date Code □1 □2 □3 □4 □5 Description Temperature&Rohs: C:-40~85C ,Pb Free Rohs Std. Package type: LA: SOT-223 (A) LB: SOT-223 (B) Packing type: TR:Tape&Reel (Standard) Output voltage: e.g. 12=1.2V 18=1.8V 25=2.5V 33=3.3V 50=5.0V Voltage accuracy: 1=±1%(Customized) Blank(default)=±2% VDD GND VOUT Max Input Voltage Max Operating Junction Temperature (TJ) Ambient Temperature (TA) Package Thermal SOT-223 Resistance Storage Temperature (TS) Lead Temperature & Time www.belling.com.cn BL8071CLBTR□□ Supply Voltage Input Ground Pin Output Voltage Y: The Year of manufacturing,”1” stands for year 2011, “2” stands for year 2012, and “8” stands for year 2018. W: The week of manufacturing. ”A” stands for week ABSOLUTE MAXIMUM RATING Parameter BL8071CLATR□□ Value 1,”Z” stands for week 26,” A ” stands for week 27,” Z ” stands for week 52. 8V 145C RECOMMENDED WORK CONDITIONS -40C~85C Parameter 20C / W Input Voltage Range Ambient Temperature Operating Junction Temperature (TJ) -40C~150C 260C, 10 Sec 2 Value Max. 6V -40C~85C 125C BL8071 ELECTRICAL CHARACTERISTICS Test Conditions: CIN=4.7uF,COUT=4.7uF,TA=25C, unless otherwise specified. Symbol Parameter VDD Input Voltage VOUT Output Voltage VOUT>1.5 VOUT<=1.5 Conditions Min VDD=Set VOUT+1V 1mA≤IOUT≤10mA 1.5* VOUT X0.98 VOUT -0.03 1.5 IOUT (Max.) ** VDROP Maximum Output Current Dropout Voltage VDD-VOUT=1V VOUT =3.3V, IOUT=1A Vout Vin Vout Line Regulation IOUT=10mA, 4V≤VDD≤6V Vout Load Regulation Is Supply Current Vout T Vout Output Voltage Temperature Coefficient PSRR Ripple Rejection en Output Noise VDD=Set VOUT+1V 1mA≤IOUT≤2.5A VDD=Set VOUT+1V, VOUT Floating IOUT=10mA f=100Hz, Ripple=0.5Vp-p, VDD=Set VOUT+1V BW=10Hz~100KHz Typ VOUT Max Units 6 VOUT X1.02 VOUT +0.03 V V 300 500 A mV 0.05 0.2 %/V 30 60 mV 100 150 uA ±100 ppm/C 70 dB 44 uVrms Note: *Iout=500mA@Vout=1.2V **The maximum power rating of each package is a constant, so along with the change of I LOAD, the VDD-VOUT should be controlled to a certain range to ensure the normal operation. THERMAL CONSIDERATIONS We have to take heat dissipation into great consideration when output current or differential voltage of input and output voltage is large. Because in such cases, the power dissipation consumed by BL8071 is very large. BL8071 series uses SOT-223 package type and its thermal resistance is about 20°C/W. And the copper area of application board can affect the total thermal resistance. If copper area is 5cm*5cm (two sides), the resistance is about 30°C/W. So the total thermal resistance is about 20°C/W + 30°C/W. In this case, the power dissipation should be limited less than 1.2W. We can decrease total thermal resistance by increasing copper area in application board. When there is no good heat dissipation copper are in PCB, the total thermal resistance will be as high as 120°C/W, then the power dissipation of BL8071 could allow on itself is less than 1W. And furthermore, BL8071 will work at junction temperature higher than 125°C under such condition and no lifetime is guaranteed. CURRENT LIMIT MODE Current Limit module can keep chip and power system away from danger when load current is too large. When Vout decrease the Short Circuit Current will fold back to a small value. www.belling.com.cn 3 BL8071 TYPICAL PERFORMANCE CHARACTERISTICS Load Regulation Load Regulation (Vout=1.2V) 3.6 1.4 3.4 1.2 3.2 1.0 Vout(V) Vout(V) (Vout=3.3V) 3.0 2.8 0.8 0.6 2.6 2.4 2.2 Vin=5.0V Vin=3.0V Vin=2.0V Vin=1.8V 0.4 Vin=5.0V Vin=4.3V Vin=4.0V 0.2 2.0 0.0 0.0 0.5 1.0 1.5 0.0 0.5 1.0 Iout(A) 1.5 Iout(A) Iq Line Regulation 3.5 250 3.0 200 Iq(uA) Vout(V) 2.5 2.0 1.5 150 100 1.0 50 0.5 Vout=3.3V Vout=1.2V Vout=3.3V Vout=1.2V 0 0.0 0 1 2 3 4 Vin(V) 5 0 6 2 3 Vin(V) 4 5 6 Vout vs. Temperature Dropout Voltage 4.0 900 Vout=3.3V 800 Vout=1.2V 700 3.5 600 Vout(V) Dropout(mV) 1 500 400 3.0 300 2.5 200 100 0 0 0.5 1 2.0 1.5 (50) Iout(A) www.belling.com.cn 4 0 50 100 Temperature(℃) 150 BL8071 Load Transient Response (Vin=5V,Vout=3.3V) Cin=1uF,Cout=1uf,Iout=1mA-100mA Line Transient Response(Vin=5V,Vout=3.3V) Cin=1uF,Cout=1uf,Iout=10mA,Vin=4.3V-5.3V PACKAGE LINE Package SOT-223 Devices per reel 2500Pcs Unit mm Package specification： C C COMMON DIMENSIONS L1 (UNITS OF MEASURE=MILLIMETER) E1(BTM) E2(TOP) L1 E θ θ θ R R e1 e 0.10 A3 D2 D(TOP) L2 θ A1 0.08 D1(BTM) b2 b3 SECTION D-D c1 c θ A2 A b b1 SECTION C-C www.belling.com.cn c1 c e L D D 5 SYMBOL A A1 A2 A3 b b1 b2 b3 c c1 D D1 D2 E E1 E2 e e1 L L1 L2 R R1 θ θ MIN 0.02 1.50 0.80 0.67 0.66 2.96 2.95 0.30 0.29 6.48 6.55 6.80 3.40 3.33 0.80 0.10 0.10 0° 10° NOM 1.60 0.90 0.71 3.00 0.30 6.53 6.60 3.50 3.43 2.30BSC 4.60BSC 1.00 1.75REF 0.25BSC 12° MAX 1.80 0.10 1.70 1.00 0.80 0.76 3.09 3.05 0.35 0.31 6.58 6.65 7.05 7.20 3.60 3.53 1.20 8° 14° NOTES: ALL DIMENSIONS REFER TO JEDEC STANDARD TO261-AA