LM1117-3.3电压转换芯片数据手册说明书.pdf
CYStech Electronics Corp.Spec.No.:C506L3 Issued Date:2003.03.22 Revised Date:2005.10.07 Page No.:1/4LM1117L3 CYStek Product Specification1A Low Dropout Positive Voltage Regulator LM1117L3 Features Description Adjustable or Fixed Output The LM1117 series of positive adjustable and fixed Output Current of 1A regulators are designed to provide 1A with highLow Dropout,1.3V max at 1A Output Current efficiency.All internal circuitry is designed to0.04%Line Regulation operate down to 1.3V input to output differential.0.2%Load Regulation On-chip trimming adjusts the reference voltage to100%Thermal Limit Burn-in 1%.Fast Transient ResponseApplications High Efficiency Linear Regulators Post Regulators for Switching Supplies Adjustable Power SupplyTypical Application Data Fixed Voltage Regulator Adjustable Voltage Regulator VOUT=VREF(1+R2/R1)+IADJR2Notes:1)C1 needed if device is far from filter capacitors 2)C2 minimum value required for stability C2 10F Tant.MinVOUT=3.3V C1 10F Tant VIN4.75V 1 23IN TABGNDOUT+VOUT=3.45V C2 10F Tant.MinR2 232 Ohm,1%C1 10F,Tant VIN4.75V+INTAB ADJ OUT+CYStech Electronics Corp.Spec.No.:C506L3 Issued Date:2003.03.22 Revised Date:2005.10.07 Page No.:2/4LM1117L3 CYStek Product SpecificationPackage Information SOT-223 Absolute Maximum Ratings Symbol Parameter Maximum UnitsPD Power Dissipation Internally Limited W VIN Input Voltage 7 V TJ Operating Junction Temperature Range Control Section Power Transistor 0 to 125 0 to 150 TSTG Storage Temperature-65 to 150 TLEAD Lead Temperature(Soldering,10 sec)300 Device Selection Guide Device Output Voltage LM1117-Adj Adjustable LM1117-1.5 1.5V LM1117-1.8 1.8V LM1117-2.5 2.5V LM1117-2.85 2.8 5V LM1117-3.0 3.0V LM1117-3.3 3.3V LM1117-3.5 3.5V LM1117-5.0 5.0VElectrical Characteristics ILOAD=0mA,TJ=25,unless otherwise specified Parameter Device Test Conditions Min Typ MaxUnitsVIN=5V,ILOAD=10mA 1.238 1.2501.262Reference voltage(Note 1)Adj Version VIN=2.65V to 7V,ILOAD=10mA to 1A*1.225 1.2501.275V VIN=VOUT+1.5V Variator from nominal VOUT-1+1%VIN=VOUT+1.5V to 7VILOAD=0mA to 1AOutput Voltage(Note 1)Al fixed version Variator from nominal VOUT*-2+2%Line Regulation(Note 1)All ILOAD=10mA,(VOUT+1.5V)V7V*0.040.2Load Regualtion(Note 1)All VIN=VOUT+1.5V,ILOAD=10mA to 1A*0.2 0.4%Minimum Load Current Adj Version VIN=5V,VADJ=0V*3 7mAGroundPin CurrentAll fixed versionVIN=VOUT+1.5V,ILOAD=10mAto 1A*713mAAdjust Pin Current Adj Version VIN=2.65V to 7V,ILOAD=10mA*55 90APin Function 1 ADJ/GND 2 OUTPUT 3 INPUT 1 2 3 CYStech Electronics Corp.Spec.No.:C506L3 Issued Date:2003.03.22 Revised Date:2005.10.07 Page No.:3/4LM1117L3 CYStek Product SpecificationCurrent Limit All(VIN-VOUT)=1.5V*1 ARippleRejection(Note 2)AllVIN=VOUT+1.5V,ILOAD=1A6072dBDropout Voltage(Note 1,3)All VIN2.65V,ILOAD=1A*1.151.3V Temperature Coefficient All VIN=VOUT=1.5V,ILOAD=10mA*0.005%/The*denotes thespecifications which apply over the full temperature range.Note 1:Low duty pulse testing with Kelvin connections required.Note 2:120Hz input ripple(CADJ for ADJ=25F)Note 3:VOUT,VREF=1%.Representative Circuit Diagram GND VINVOUT FOR FIXED VOLTAGEDEVICE FOR ADJUSTABLE VOLTAGE DEVICE ADJ CYStech Electronics Corp.Spec.No.:C506L3 Issued Date:2003.03.22 Revised Date:2005.10.07 Page No.:4/4LM1117L3 CYStek Product SpecificationSOT-223 Dimension*:TypicalInches Millimeters Inches Millimeters DIM Min.Max.Min.Max.DIM Min.Max.Min.Max.A 0.1142 0.1220 2.90 3.10 G 0.0551 0.0709 1.40 1.80 B 0.2638 0.2874 6.70 7.30 H 0.0098 0.0138 0.25 0.35 C 0.1299 0.1457 3.30 3.70 I 0.0008 0.0039 0.02 0.10 D 0.0236 0.0315 0.60 0.80 a1*13o-*13o-E*0.0906-*2.30-a2 0 o 10 o0 o 10 oF 0.2480 0.2638 6.30 6.70 Notes:1.Controlling dimension:millimeters.2.Maximum lead thickness includes lead finish thickness,and minimum lead thickness is the minimum thickness of base material.3.If there is any question with packing specification or packing method,please contact your local CYStek sales office.Material:?Lead:42 Alloy;solder plating?Mold Compound:Epoxy resin family,flammability solid burning class:UL94V-0Important Notice:?All rights are reserved.Reproduction in whole or in part is prohibited without the prior written approval of CYStek.?CYStek reserves the right to make changes to its products without notice.?CYStek semiconductor products are not warranted to be suitable for use in Life-Support Applications,or systems.?CYStek assumes no liability for any consequence of customer product design,infringement of patents,or application assistance.321FBACDEGHa1a2IStyle:Pin 1.Adj/Gnd 2.Output3.Input 3-Lead SOT-223 Plastic Surface Mounted Package CYStek Package Code:L3左一:西元年末碼左二:月碼,1=A,2=B,8=H,9=J,12=M左三-四:流水號Date CodePart number:XX:15 for 1.5V 18 for 1.8V 25 for 2.5V 33 for 3.3V 50 for 5.0VBlank for ADJ
