LMS8117A

LMS8117A 1A Low-Dropout Linear Regulator July 2001 LMS8117A 1A Low-Dropout Linear Regulator General Description The LMS8117A is a series of low dropout voltage regulators with a dropout of 1.2V at 1A of load current. It has the same pin-out as National Semiconductor’s industry standard LM317. The LMS8117A is available in an adjustable version, which can set the output voltage from 1.25V to 13.8V with only two external resistors. In addition, it is also available in two fixed voltages, 1.8V and 3.3V. The LMS8117A offers current limiting and thermal shutdown. Its circuit includes a zener trimmed bandgap reference to assure output voltage accuracy to within ± 1%. The LMS8117A series is available in SOT-223 and TO-252 D-PAK packages. A minimum of 10µF tantalum capacitor is required at the output to improve the transient response and stability. Features n n n n n n n Available in 1.8V, 3.3V, and Adjustable Versions Space Saving SOT-223 and TO-252 Packages Current Limiting and Thermal Protection Output Current 1A Temperature Range 0˚C to 125˚C Line Regulation 0.2% (Max) Load Regulation 0.4% (Max) Applications n n n n Post Regulator for Switching DC/DC Converter High Efficiency Linear Regulators Battery Charger Battery Powered Instrumentation Typical Application Fixed Output Regulator DS101196-28 © 2001 National Semiconductor Corporation DS101196 www.national.com LMS8117A Ordering Information Package 3-lead SOT-223 Temperature Range (TJ) 0˚C to +125˚C LMS8117AMP-ADJ LMS81...