800 mA Low-Dropout Linear Regulator LM1117, LM1117I The LM1117 is a low dropout voltage regulator with a dropout of 1.2 V at 800 mA of load current. The LM1117 is available in an adjustable version, which can set the output voltage from 1.25 to www.onsemi.com 13.8 V with only two external resistors. In addition, it is available in five fixed voltages, 1.8 V, 2.5 V, 3.3 V, and 5 V. The LM1117 offers current limiting and thermal shutdown. Its circuit is trimmed to assure output voltage accuracy to within +/1%. Features SOT223 Available in 1.8 V, 2.5 V, 3.3 V, 5.0 V, and Adjustable Versions CASE 318H SpaceSaving SOT223 Package Current Limiting and Thermal Protection PIN CONFIGURATION Output Current 800 mA Tab Line Regulation 0.2% (Maximum) Load Regulation 0.4% (Maximum) Temperature Range: 40C to 125C 123 These are Pb-Free Devices SOT223 (Top View) Applications Pin: 1. Adjust/Ground Post Regulator for Switching DCDC Converter 2. Output High Efficiency Linear Regulators 3. Input Battery Chargers Heatsink tab is connected to Pin 2. Portable Instrumentation Active SCSI Termination Regulation ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 11 of this data sheet. DEVICE MARKING INFORMATION See general marking information in the device marking section on page 11 of this data sheet. TYPICAL APPLICATIONS 110 110 3 2 LM1117 Input Output Input Output 3 LM1117 2 3 2 LM1117 XT285 18 to 27 ++ XTXX 10 22 XTA 110 ++ 10 10 ++ Lines 10 10 F 1 F 1 F F F 1 F 4.75 V + to 110 5.25 V Figure 1. Fixed Figure 2. Adjustable Figure 3. Active SCSI Bus Terminator Output Regulator Output Regulator Semiconductor Components Industries, LLC, 2020 1 Publication Order Number: February, 2021 Rev. 1 LM1117/DLM1117, LM1117I MAXIMUM RATINGS Rating Symbol Value Unit Input Voltage (Note 1) V 20 V in Output Short Circuit Duration (Notes 2 and 3) Infinite Power Dissipation and Thermal Characteristics Case 318H (SOT223) Power Dissipation (Note 2) P Internally Limited W D Thermal Resistance, JunctiontoAmbient, Minimum Size Pad R 160 C/W JA Thermal Resistance, JunctiontoCase R 15 C/W JC Maximum Die Junction Temperature Range T 55 to 150 C J Storage Temperature Range T 65 to 150 C stg Operating Ambient Temperature Range T C A LM1117 0 to +125 LM1117I 40 to +125 Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. This device series contains ESD protection and exceeds the following tests: Human Body Model (HBM), Class 2, 2000 V Machine Model (MM), Class B, 200 V Charge Device Model (CDM), Class IV, 2000 V. 2. Internal thermal shutdown protection limits the die temperature to approximately 175C. Proper heatsinking is required to prevent activation. The maximum package power dissipation is: T T J(max) A P D R JA 3. The regulator output current must not exceed 1.0 A with V greater than 12 V. in www.onsemi.com 2