Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003Rev 1.6 1Featuresn Wide 3.6V to 24V Input Voltage Rangen 0.22V FB adjustable LED drive currentn Directly drive 6 Series 1W LED atVIN>=12Vn Fixed 400KHz Switching Frequencyn Max. 2A Switching Current Capabilityn Up to 92% efficiencyn Excellent line and load regulationn EN PIN TTL shutdown capability &With PWM Dimming Function n Internal Optimize Power MOSFETn Built in Soft-Start Functionn Built in Frequency Compensationn Built in Thermal Shutdown Functionn Built in Current Limit Functionn Available in SOP8 packageApplicationsn LED Lightingn Boost constant current drivern Monitor LED Backlightingn 7’ to 15’ LCD Panels General DescriptionThe XL6003 regulator is fixed frequency PW*oost (step-up) LED constant current driver,capable of driving Series 1W LED units withexcellent line and load regulation. The regulator issimple to use because it includes internal frequencycompensation and a fixed-frequency oscillator sothat it requires a minimum number of externalcomponents to work.The XL6003 could directly drive 6 Series 1W LEDunits at VIN>12V .The PWM control circuit is able to adjust theduty ratio linearly from 0 to 95%. An enablefunction, an over current protection function is built inside. An internal compensationblock is built in to minimize externalcomponent count.Figure1. Package T*e of XL6003 Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003Rev 1.6 2Pin ConfigurationsXL SWENFBVINNC678SWGNDGNDFigure2. Pin Configuration of XL6003 (Top View)Table 1 Pin DescriptionPin Number Pin Name Description1 ENEnable Pin. Drive EN pin low to turn off the device, drive ithigh to turn it on. Floating is default high.2 VINSupply Voltage Input Pin. XL6003 operates from a 3.6V to 24VDC voltage. B** Vin to GND with a suitably large capacitorto eliminate noise on the input.3 FB Feedback Pin (FB). The feedback threshold voltage is 0.22V.4 NC No Connected.5,6 SWPower Switch Output Pin (SW). Output is the switch node thatsupplies power to the output.7,8 GND Ground Pin. Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003Rev 1.6 3Function BlockFigure3. Function Block Diagram of XL6003T*ical Application CircuitFigure4. XL6003 T*ical Application Circuit Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003Rev 1.6 4Ordering Information Part Number Marking IDLead Free Lead FreePacking T*eXL6003E1 XL6003E1 TubePackageTemperatureRangeXL6003TRE1 XL6003E1 Tape & ReelXLSEMI Pb-free products, as designated with “E1” suffix in the par number, are RoHS compliant.Absolute Maximum Ratings（Note1）Parameter Symbol Value UnitInput Voltage Vin -0.3 to 26 VFeedback Pin Voltage VFB-0.3 to Vin VEN Pin Voltage VEN-0.3 to Vin VOutput Switch Pin Voltage VOutput-0.3 to 60 VPower Dissipation PDInternally limited mWThermal Resistance (SOP8)(Junction to Ambient, No Heatsink, Free Air)RJA 100 ºC/WOperating Junction Temperature TJ-40 to 125 ºCStorage Temperature TSTG-65 to 150 ºCLead Temperature (Soldering, 10 sec) TLEAD 260 ºC*D (HBM) >2000 VNote1: Stresses greater than those listed under Maximum Ratings may cause permanent damageto the device. This is a stress rating only and functional operation of the device at these or anyother conditions above those indicated in the operation is not implied. Exposure to absolutemaximum rating conditions for extended periods may affect reliability. Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003Rev 1.6 5XL6003 Electrical CharacteristicsTa = 25℃;unless otherwise specified.Symbol Parameter Test Condition Min. T*. Max. UnitSystem parameters test circuit figure4VFBFeedbackVoltageVin = 5V to 12V, Vout=24VIload=100mA209 220 231 mVEfficiency ?Vin=12V ,Vout=24VIout=0.3A- 92 - %Electrical Characteristics (DC Parameters)Vin = 12V, GND=0V, Vin & GND parallel connect a 100uf/50V capacitor; Iout=100mA, Ta =25℃; the others floating unless otherwise specified.Parameters Symbol Test Condition Min. T*. Max. UnitInput operation voltage Vin 3.6 24 VShutdown Supply Current ISTBY VEN=0V 70 100 uAQuiescent Supply Current IqVEN =2V, VFB =Vin2.5 5 mAOscillator Frequency Fosc 320 400 480 KhzSwitch Current Limit IL VFB =0 2 AOutput Power NMOS RdsonVin=12V,ISW=2A110 120 mohmEN Pin Threshold VENHigh (Regulator ON)Low (Regulator OFF)1.40.8VEN P IH VEN =2V (ON) 3 10 uAin Input LeakageCurrentIL VEN =0V (OFF) 3 10 uAMax. Duty Cycle DMAX VFB=0V 90 % Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003Rev 1.6 6Schottky Diode Selection TableCurrent SurfaceMountThroughHoleVR (The same as system maximum input voltage)20V 30V 40V 50V 60V1A √ 1N5817 1N5818 1N5819√ 1N5820 1N5821 1N5822√ *R320 *R330 *R340 *R350 *R360√ SK32 SK33 SK34 SK35 SK36√ 30WQ03 30WQ04 30WQ05√ 31DQ03 31DQ04 31DQ053A√ SR302 SR303 SR304 SR305 SR306T*ical System Application for VIN=5V to driver 3 x 1W series LED unitsXL6003 CIN47uf /16VD1 SK34L 22uh/2A 5V27,8 135,6GNDVINSWFBE**FF350mAILED=0.22/RSSeries 3 1W LEDRSCOUT47uf/35VFigure5. XL6003 System Parameters Test Circuit (5V ~ 3 x 1W LED) Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003Rev 1.6 7T*ical System Application for VIN>=12V to driver 6 x 1W series LED unitsFigure6. XL6003 System Parameters Test Circuit (12V ~ 6 x 1W LED)T*ical System Application for VIN>=12V to driver 6 series x 28 parallelWhite LED Array Figure7. XL6003 System Parameters Test Circuit (12V ~ 6 x 28 White LED) Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003Rev 1.6 T*ical System Application for SEPIC Buck-Boost LED Driver Figure8. XL6003 System Parameters Test Circuit (Buck-Boost LED Driver)T*ical System Application for VIN>=12V to driver 6 x 1W series LED unitsWith Dimming FunctionFigure9. XL6003 System Parameters Test Circuit (12V ~ 6 x 1W LED with Dimming Function) Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003Rev 1.6 9Package InformationSOP8 Package Mechanical Dimensions

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