G9967 Global Mixed-mode Technology Inc. 3A Low Dropout Regulator with Enable Features General Description The G9967 is a high performance positive voltage regulator designed for use in applications requiring very low dropout voltage at up to 3 Amps. Since it has superior dropout characteristics compared with regular LDOs, it can be used to supply adjustable voltage on motherboards or on peripheral cards from the power supply thus allowing the elimination of costly heatsinks. An enable pin further reduces power dissipation while shut down. The G9967 provides excellent regulation over variations in line, load and temperature. It provides over current and over temperature protection functions. Adjustable Outputs Over Current and Over Temperature Protection Output Current 3A Enable Pin 20µA Quiescent Current in Shutdown TO-263-5 Package Applications Battery Powered Systems Motherboards Peripheral Cards Network Cards Set Top Boxes Notebook Computers The G9967 is available with adjustable outputs in TO-263-5 package. Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Pb free) G9967-ADJTGU G9967 -40°C ~ +85°C TO-263-5 Note: TG: TO-263-5 U: Tape & Reel Pin Configuration Typical Application Circuit G9967-ADJ G9967-ADJ VEN VEN VIN VIN VO VO R1 C1 220µF 1 2 3 4 GND ADJ C2 220µF R2 5 VIN VEN GND ADJ VO TO-263-5 1.2 (R1+R2) Volts R2 R2=12KΩ is recommended VO = TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.4 Preliminary May 03, 2005 1