Features 3 Description
1 The LM1117 is a low dropout voltage regulator with a • Available in 1.8 V, 2.5 V, 3.3 V, 5 V, and
dropout of 1.2 V at 800 mA of load current. Adjustable Versions
• Space-Saving SOT-223 and WSON Packages The LM1117 is available in an adjustable version,
which can set the output voltage from 1.25 to 13.8 V • Current Limiting and Thermal Protection
with only two external resistors. In addition, it is
• Output Current 800 mA available in five fixed voltages, 1.8 V, 2.5 V, 3.3 V,
• Line Regulation 0.2% (Maximum) and 5 V.
• Load Regulation 0.4% (Maximum) The LM1117 offers current limiting and thermal
• Temperature Range shutdown. Its circuit includes a Zener trimmed
bandgap reference to assure output voltage accuracy – LM1117: 0°C to 125°C
to within ±1%.
– LM1117I: −40°C to 125°C
A minimum of 10-µF tantalum capacitor is required at
2 Applications the output to improve the transient response and
stability.
• Post Regulator for Switching DC–DC Converter
Device Information
(1)
• High Efficiency Linear Regulators
• Battery Chargers PART NUMBER PACKAGE BODY SIZE (NOM)
• Portable Instrumentation SOT-223 (4) 6.50 mm × 3.50 mm
TO-220 (3) 14.986 mm × 10.16 mm • Active SCSI Term
