CYStech Electronics Corp. Spec. No. : C506L3 Issued Date : 2003.03.22 Revised Date :2005.10.07 Page No. : 1/4 1A Low Dropout Positive Voltage Regulator LM1117L3 Features Description Adjustable or Fixed Output 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 ● ● 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 TAB 3 IN C1 10μF Tant OUT 2 VOUT=3.3V GND + 1 C2 10μF Tant.Min Adjustable Voltage Regulator VIN>4.75V TAB IN C1 10μF, Tant + ADJ VOUT=3.45V OUT VOUT=VREF×(1+R2/R1)+IADJ×R2 + C2 10μF Tant.Min R2 232 Ohm,1% Notes: 1) C1 needed if device is far from filter capacitors 2) C2 minimum value required for stability LM1117L3 CYStek Product Specification Spec. No. : C506L3 Issued Date : 2003.03.22 Revised Date :2005.10.07 Page No. : 2/4 CYStech Electronics Corp. Package Information 1 2 Pin 1 2 3 3 Function ADJ/GND OUTPUT INPUT SOT-223 Absolute Maximum Ratings Symbol Parameter PD VIN TJ Power Dissipation Input Voltage Operating Junction Temperature Range Control Section Power Transistor Storage Temperature Lead Temperature(Soldering, 10 sec) TSTG TLEAD Maximum Units Internally Limited 7 W V 0 to 125 0 to 150 -65 to 150 300 ℃ ℃ ℃ 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) Output Voltage (Note 1) Device Adj Version Al fixed version Test Conditions VIN=5V,ILOAD=10mA VIN=2.65V to 7V,ILOAD=10mA to 1A Min Typ Max 1.238 1.250 1.262 * VIN=VOUT+1.5V Variator from nominal VOUT 1.225 1.250 1.275 Units V -1 +1 % -2 +2 % VIN=VOUT+1.5V to 7V ILOAD=0mA to 1A * Variator from nominal VOUT Line Regulation (Note 1) All ILOAD=10mA,(VOUT+1.5V)≦V≦7V * 0.04 0.2 Load Regualtion (Note 1) All VIN=VOUT+1.5V, ILOAD=10mA to 1A * 0.2 0.4 % 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 * * * 3 7 55 7 13 90 mA mA µA Minimum Load Current Ground Pin Current Adjust Pin Current LM1117L3 CYStek Product Specification Spec. No. : C506L3 Issued Date : 2003.03.22 Revised Date :2005.10.07 Page No. : 3/4 CYStech Electronics Corp. Current Limit All Ripple Rejection (Note 2) All Dropout Voltage All (Note 1,3) (VIN-VOUT)=1.5V VIN=VOUT+1.5V, ILOAD= 1A VIN≧2.65V, ILOAD= 1A * 72 1.15 Temperature Coefficient VIN=VOUT=1.5V, ILOAD= 10mA * 0.005 All * 1 60 1.3 A dB V %/℃ 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=25μF) Note 3:△VOUT, △VREF=1%. Representative Circuit Diagram VIN FOR FIXED VOLTAGE DEVICE VOUT ADJ FOR ADJUSTABLE VOLTAGE DEVICE LM1117L3 GND CYStek Product Specification Spec. No. : C506L3 Issued Date : 2003.03.22 Revised Date :2005.10.07 Page No. : 4/4 CYStech Electronics Corp. SOT-223 Dimension A B 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 C 1 2 3 Date Code 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 D E F H G a1 Style: I a2 Pin 1.Adj/Gnd 3.Input 2.Output 3-Lead SOT-223 Plastic Surface Mounted Package CYStek Package Code: L3 *: Typical 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 DIM A B C D E F 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