LC1117

LC1117 REV1.0-Revised DEC 2007 1A Bipolar Linear Regulator DESCRIPTION LC1117 is a series of low dropout threeterminal regulators with a dropout of 1.26V at 1A load current. Other than a fixed version （ Vout ＝ 1.2V,1.8V,2.5V,2.85V,3.3V,5V ） , LC1117 has an adjustable version, which can provide an output voltage from 1.25 to 13.8V with only two external resistors。 LC1117 offers thermal shut down and current limit functions, to assure the stability of chip and power system. And it uses trimming technique to guarantee output voltage accuracy within ±1.5％(1.2V version is within ±2％).Other output voltage accuracy can be customized on command, such as ±1％ or ±2 ％. LC1117 is available in SOT-223,TO-252 power package。 FEATURES Other than a fixed version and an adjustable version, output value can be customized on command. Maximum output current is 1A Range of operation input voltage: Max 15V Line regulation: 0.2％ Load regulation: 0.4％ Environment Temperature: -40℃~85℃ APPLICATIONS Power Management for Computer Mother Board, Graphic Card LCD Monitor and LCD TV DVD Decode Board ADSL Modem Post Regulators for Switching Supplies TYPICAL APPLICATION ELECTRICAL CHARACTERISTICS Load Regulation VS. Temp（Iout from10mA to1A） ∆Vout/Vout*100％ 1 0.5 0 -0.5 -1 -50 -25 0 25 50 75 100 125 150 Temperature（℃） Application circuit of LC1117 fixed version NOTE: Input capacitor (Cin=10uF) and Output capacitor (Cout=22uF) are recommended in all application circuit. Tantalum ca...