CYStech Electronics Corp. Spec. No. : C506J3 Issued Date : 2007.07.10 Revised Date :2007.12.11 Page No. : 1/5 1A Low Dropout Positive Voltage Regulator LM1117-XXXJ3 Features Description Adjustable or Fixed Output Output Current of 1A ●Low Dropout, 1.4V max at 1A Output Current ●Good Noise Rejection ●Output Current Limiting ●Built-in Thermal Shutdown ●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 1.4V input to output differential. The product is specifically designed to provide wellregulated supply for low-voltage IC application such as high-speed bus termination and low current 3.3V logic supply, and other applications such as VGA cards. ● ● Applications High Efficiency Linear Regulators ● Post Regulators for Switching Supplies ● Adjustable Power Supply ● Typical Application Data Fixed Voltage Regulator VIN>4.75V + 3 TAB OUT IN VOUT=3.3V 2 GND 1 C1 10μF, Tan. + C2 10μF, Tan. Min Notes: 1)C1 needed if device is far from filter capacitors 2)C2 minimum value required for stability Adjustable Voltage Regulator VIN>4.75V + 3 C1 TAB OUT IN ADJ 1 VOUT=3.45V 2 R1 133Ω,1% 10μF, Tan. VOUT=VREF×(1+R2/R1)+IADJ×R2 Notes: 1)C1 needed if device is far from filter capacitors 2)C2 minimum value required for stability LM1117-XXXJ3 + R2 232Ω, 1% C2 10μF, Tan. Min CYStek Product Specification CYStech Electronics Corp. Spec. No. : C506J3 Issued Date : 2007.07.10 Revised Date :2007.12.11 Page No. : 2/5 Package Information Pin 1 2 3 Name ADJ/GND OUTPUT INPUT TO-252 Absolute Maximum Ratings Symbol PD VIN TOPR TSTG TMJ Parameter Power Dissipation Input Voltage Operating Junction Temperature Range Storage Temperature Maximum Junction Temperature Maximum 1050 -0.3 ~ +15 0 ~ +125 -65 ~ +150 150 Units mW V ℃ ℃ ℃ Device Selection Guide Device LM1117-ADJ LM1117-1.5 LM1117-1.8 LM1117-2.5 LM1117-3.3 LM1117-5.0 Output Voltage Adjustable 1.5V 1.8V 2.5V 3.3V 5.0V Block Diagram LM1117-XXXJ3 CYStek Product Specification Spec. No. : C506J3 Issued Date : 2007.07.10 Revised Date :2007.12.11 Page No. : 3/5 CYStech Electronics Corp. Electrical Characteristics @ IO=10mA,TJ=25℃, unless otherwise specified Parameter Reference voltage Device Test Conditions Min Typ Max Units Adj version VIN-VOUT=1.5V 1.225 1.250 1.275 3.0V≤VIN≤12V 3.3V≤VIN≤12V 4.0V≤VIN≤12V 4.8V≤VIN≤12V 6.5V≤VIN≤12V VOUT+1.5V≤VIN≤12V VIN=3.3V, Vadj=0, 10mA≤IO≤1A LM1117-1.5 VIN=3.0V, 0mA≤IO≤1A LM1117-1.8 VIN=3.3V, 0mA≤IO≤1A LM1117-2.5 VIN=4.0V, 0mA≤IO≤1A LM1117-3.3 VIN=5.0V, 0mA≤IO≤1A 1.470 1.764 2.450 3.235 4.900 - 1.500 1.800 2.500 3.300 5.000 12 1.530 1.836 2.550 3.365 5.100 0.2 1 15 V V V V V % % mV - 15 20 18 25 mV mV - 26 33 mV LM1117-5.0 VIN=8.0V, 0mA≤IO≤1A - 40 50 mV Dropout Voltage (VIN-VOUT) Current Limit All version IO=1A (ΔVOUT=1%VOUT) - 1.3 1.4 V All version VIN-VOUT=5V 1.1 - - A Minimum Load Current Adj version VIN=5V - 5 10 mA Adjust Pin Current Quiescent Current Adj version VIN=12V, IO=10mA Fixed version VIN=12V, IO=0mA - 50 - 100 12 μA mA Output Voltage Line Regulation Load Regulation (Note 1, 2) LM1117-1.5 LM1117-1.8 LM1117-2.5 LM1117-3.3 LM1117-5.0 All version LM1117-ADJ V Thermal Regulation All version TA=25℃, 30ms pulse - 0.008 0.04 %/W Ripple Rejection All version f=120Hz, VIN=VOUT+3V, IO= 1A, COUT=25μF tantalum - 60 70 dB Temperature Stability All version IO= 10mA - 0.5 - % Thermal Resistance, Junction to Ambient( No heat sink, no air flow) All version - 117 - ℃/W Thermal Resistance, Junction to Case All version - 15 - ℃/W Control Circuitry/ Power transistor Note : 1.See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation are measured at a constant junction temperature by low duty cycle pulse testing. Load regulation is measured at the output lead 1/18” from the package. 2. Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the difference in input and output and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range. LM1117-XXXJ3 CYStek Product Specification CYStech Electronics Corp. Spec. No. : C506J3 Issued Date : 2007.07.10 Revised Date :2007.12.11 Page No. : 4/5 Characteristic Curves GND LM1117-XXXJ3 CYStek Product Specification Spec. No. : C506J3 Issued Date : 2007.07.10 Revised Date :2007.12.11 Page No. : 5/5 CYStech Electronics Corp. TO-252 Dimension C A Marking: D B Device Name Date Code G F L 1117□□□ □□□□ 1.5V→ -15 1.8V→ -18 2.5V→ -25 3.3V→ -33 5.0V→ -50 ADJ→ blank 3 H E 2 K I Style: Pin 1.Adj(GND) 2.Vout(TAB) 3.Vin 1 J 3-Lead TO-252 Plastic Surface Mount Package CYStek Package Code: J3 *: Typical Inches Min. Max. 0.0177 0.0217 0.0650 0.0768 0.0354 0.0591 0.0177 0.0236 0.2520 0.2677 0.2125 0.2283 DIM A B C D E F Millimeters Min. Max. 0.45 0.55 1.65 1.95 0.90 1.50 0.45 0.60 6.40 6.80 5.40 5.80 DIM G H I J K L Inches Min. Max. 0.0866 0.1102 *0.0906 0.0354 0.0315 0.2047 0.2165 0.0551 0.0630 Millimeters Min. Max. 2.20 2.80 *2.30 0.90 0.80 5.20 5.50 1.40 1.60 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. LM1117-XXXJ3 CYStek Product Specification