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Description
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 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 includes a Zener trimmed bandgap reference to assure output voltage accuracy to within ±1%. A minimum of 10-µF tantalum capacitor is required at 2 Applications the output to improve the transient response and stability.
FEATURES
• Available in 1.8 V, 2.5 V, 3.3 V, 5 V, and Adjustable Versions
• Space-Saving SOT-223 and WSON Packages
• Current Limiting and Thermal Protection
• Output Current 800 mA
• Line Regulation 0.2% (Maximum)
• Load Regulation 0.4% (Maximum)
• Temperature Range
– LM1117: 0°C to 125°C
– LM1117I: −40°C to 125°C
APPLICATIONS
• Post Regulator for Switching DC–DC Converter Device
• High Efficiency Linear Regulators
• Battery Chargers
• Portable Instrumentation
• Active SCSI Termination Regulator
ORDERING GUIDE
Device PackageType PackageDrawing Pins SPQ
LM1117DTX-1.8/NOPB TO-252 NDP 3 2500
LM1117DTX-2.5/NOPB TO-252 NDP 3 2500
LM1117DTX-3.3/NOPB TO-252 NDP 3 2500
LM1117DTX-5.0/NOPB TO-252 NDP 3 2500
LM1117DTX-ADJ/NOPB TO-252 NDP 3 2500
LM1117IDTX-3.3/NOPB TO-252 NDP 3 2500
LM1117IDTX-5.0/NOPB TO-252 NDP 3 2500
LM1117IDTX-ADJ/NOPB TO-252 NDP 3 2500
LM1117ILD-ADJ/NOPB WSON NGN 8 1000
LM1117IMP-3.3/NOPB SOT-223 DCY 4 1000
LM1117IMP-5.0/NOPB SOT-223 DCY 4 1000
LM1117IMP-ADJ/NOPB SOT-223 DCY 4 1000
LM1117IMPX-3.3/NOPB SOT-223 DCY 4 2000
LM1117IMPX-5.0/NOPB SOT-223 DCY 4 2000
LM1117IMPX-ADJ/NOPB SOT-223 DCY 4 2000
LM1117LD-1.8/NOPB WSON NGN 8 1000
LM1117LD-2.5/NOPB WSON NGN 8 1000
LM1117LD-3.3/NOPB WSON NGN 8 1000