Circuit Board Chip LM1117 800-mA Low-Dropout Linear Regulator IC LM1117MPX-3.3

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