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| CYStech Electronics Corp. 1A Low Dropout Positive Voltage Regulator Spec. No. : C506L3 Issued Date : 2003.03.22 Revised Date :2005.10.07 Page No. : 1/4 LM1117L3 Features or Fixed Output Current of 1A Low Dropout, 1.3V max at 1A Output Current 0.04% Line Regulation 0.2% Load Regulation 100% Thermal Limit Burn-in Fast Transient Response Adjustable Output Description The LM1117 series of positive adjustable and fixed regulators are designed to provide 1A with high efficiency. All internal circuitry is designed to operate down to 1.3V input to output differential. On-chip trimming adjusts the reference voltage to 1%. Applications High Efficiency Linear Regulators Post Regulators for Switching Supplies Adjustable Power Supply Typical Application Data Fixed Voltage Regulator VIN>4.75V 3 IN TAB OUT GND 2 VOUT=3.3V C1 10F Tant 1 + C2 10F Tant.Min Adjustable Voltage Regulator VIN>4.75V IN C1 10F, Tant TAB VOUT=3.45V OUT + ADJ + C2 10F Tant.Min R2 232 Ohm,1% VOUT=VREFx(1+R2/R1)+IADJxR2 Notes: 1) C1 needed if device is far from filter capacitors 2) C2 minimum value required for stability LM1117L3 CYStek Product Specification CYStech Electronics Corp. Package Information Pin 1 2 3 Function ADJ/GND OUTPUT INPUT Spec. No. : C506L3 Issued Date : 2003.03.22 Revised Date :2005.10.07 Page No. : 2/4 1 2 3 SOT-223 Absolute Maximum Ratings Symbol PD VIN TJ TSTG TLEAD Parameter Power Dissipation Input Voltage Operating Junction Temperature Range Control Section Power Transistor Storage Temperature Lead Temperature(Soldering, 10 sec) Maximum Internally Limited 7 0 to 125 0 to 150 -65 to 150 300 Units W V Device Selection Guide Device LM1117-Adj LM1117-1.5 LM1117-1.8 LM1117-2.5 LM1117-2.85 LM1117-3.0 LM1117-3.3 LM1117-3.5 LM1117-5.0 Output Voltage Adjustable 1.5V 1.8V 2.5V 2.8 5V 3. 0V 3.3V 3.5V 5.0V Electrical Characteristics @ILOAD=0mA,TJ=25, unless otherwise specified Parameter Reference voltage (Note 1) Device Adj Version Al fixed version Test Conditions Min Typ Max Units V % VIN=5V,ILOAD=10mA VIN=2.65V to 7V,ILOAD=10mA to 1A VIN=VOUT+1.5V Variator from nominal VOUT VIN=VOUT+1.5V to 7V ILOAD=0mA to 1A Variator from nominal VOUT 1.238 1.250 1.262 * 1.225 1.250 1.275 -1 +1 Output Voltage (Note 1) * * * * * * -2 0.04 0.2 3 7 55 +2 0.2 0.4 7 13 90 % Line Regulation (Note 1) Load Regualtion (Note 1) Minimum Load Current Ground Pin Current Adjust Pin Current LM1117L3 All All ILOAD=10mA,(VOUT+1.5V)V7V VIN=VOUT+1.5V, ILOAD=10mA to 1A % mA mA A Adj Version VIN=5V,VADJ=0V All fixed version VIN=VOUT+1.5V, ILOAD=10mA to 1A Adj Version VIN=2.65V to 7V, ILOAD=10mA CYStek Product Specification CYStech Electronics Corp. Current Limit All Ripple Rejection (Note 2) All Dropout Voltage All (Note 1,3) Temperature Coefficient All (VIN-VOUT)=1.5V VIN=VOUT+1.5V, ILOAD= 1A VIN2.65V, ILOAD= 1A VIN=VOUT=1.5V, ILOAD= 10mA * * * Spec. No. : C506L3 Issued Date : 2003.03.22 Revised Date :2005.10.07 Page No. : 3/4 1 60 A dB V %/ 72 1.15 0.005 1.3 The * denotes the specifications 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 VIN FOR FIXED VOLTAGE DEVICE ADJ FOR ADJUSTABLE VOLTAGE DEVICE VOUT GND LM1117L3 CYStek Product Specification CYStech Electronics Corp. SOT-223 Dimension A Spec. No. : C506L3 Issued Date : 2003.03.22 Revised Date :2005.10.07 Page No. : 4/4 B 1 2 3 C Date Code : : , 1=A, 2=B,...8=H, 9=J, ...,12=M -: Part number: XX: 15 for 1.5V 18 for 1.8V 25 for 2.5V 33 for 3.3V 50 for 5.0V Blank for ADJ D E F G H I a1 Style: Pin 1.Adj/Gnd 3.Input 2.Output a2 3-Lead SOT-223 Plastic Surface Mounted Package CYStek Package Code: L3 *: Typical DIM A B C D E F Inches Min. Max. 0.1142 0.1220 0.2638 0.2874 0.1299 0.1457 0.0236 0.0315 *0.0906 0.2480 0.2638 Millimeters Min. Max. 2.90 3.10 6.70 7.30 3.30 3.70 0.60 0.80 *2.30 6.30 6.70 DIM G H I a1 a2 Inches Min. Max. 0.0551 0.0709 0.0098 0.0138 0.0008 0.0039 *13o o 0 10 o Millimeters Min. Max. 1.40 1.80 0.25 0.35 0.02 0.10 *13o o 0 10 o 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-0 Important 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. LM1117L3 CYStek Product Specification |
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