onsemi LM1117
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. The LM1117 offers current limiting and thermal shutdown.FEATURES
● Available in 1.8 V, 2.5 V, 3.3 V, 5.0 V, and Adjustable Versions● Space−Saving SOT−223 Package
● Current Limiting and Thermal Protection
● Output Current 800 mA
● Line Regulation 0.2% (Maximum)
● Load Regulation 0.4% (Maximum)
● Temperature Range: −40C to 125C
● These are Pb-Free Devices
APPLICATIONS
● Post Regulator for Switching DC−DC Converter● High Efficiency Linear Regulators
● Battery Chargers
● Portable Instrumentation
● Active SCSI Termination Regulation SOT−223 CASE 318H PIN CONFIGURATION Tab 123 SOT−223 (Top View) Pin: 1. Adjust/Ground 2. Output 3. Input Heatsink tab is connected to Pin 2. ORDERING INFORMATION See detailed ordering and shipping information 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 W Input 3 10 + mF LM1117 XTXX 1 2 Output + 10 mF Input 3 10 + mF LM1117 XTA 1 2 Output + 10 mF 3 LM1117 XT285 10 + mF 1 4.75 V + to 5.25 V 2 110 W + 22 110 W mF 110 W 18 to 27 Lines Figure 1.