G991 Global Mixed-mode Technology Inc. 1.6X Linear Fan Driver with VO Fully On Control Features General Description The G991 is a high performance positive voltage regulator designed for use in applications requiring very low dropout voltage at up to 0.5 Amps. The G991 VO output voltage follows the 1.6 times of VSET voltage until it reaches VIN voltage. The VSET voltage must be larger than 1V to guarantee VO 1.6 times of VSET. An FON pin turns VO output fully on when given low. The G991 provides excellent regulation over variations in line, load and temperature. VO Follows 1.6 Times of VSET 150mV Dropout @ 0.5A Over Current and Over Temperature Protection FON Pin to Turn VO Fully On Power SOP-8 Package Applications Notebook Computer Fan Driver Battery Powered Systems Motherboards Peripheral Cards The G991 is available in the power SOP-8 package. Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Green) G991P11U G991 -40°C ~ +85°C SOP-8 Note: P1: SOP-8 1: Bonding Code U: Tape & Reel Pin Configuration Typical Application Circuit G991 VSET G991 VSET FON FON FON 1 8 GND VIN VIN VIN 2 7 GND VO VO VO 3 6 GND VSET 4 5 GND CO 2.2µF GND CIN 2.2µF SOP-8 VO =1.6 X VSET TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.0 Mar 23, 2009 1 G995 Global Mixed-mode Technology Inc. 1.6X Linear Fan Driver with VO Fully On Control Features General Description The G995 is a high performance positive voltage regulator designed for use in applications requiring very low dropout voltage at up to 0.5 Amps. The G995 VO output voltage follows the 1.6 times of VSET voltage until it reaches VIN voltage. The VSET voltage must be larger than 1V to guarantee VO 1.6 times of VSET. An FON pin turns VO output fully on when given low. The G995 provides excellent regulation over variations in line, load and temperature. VO Follows 1.6 Times of VSET 150mV Dropout @ 0.5A Over Current and Over Temperature Protection FON Pin to Turn VO Fully On Power SOP-8 Package Applications Notebook Computer Fan Driver Battery Powered Systems Motherboards Peripheral Cards The G995 is available in the power SOP-8 package. Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Pb free) G995P1U G995 -40°C ~ +85°C SOP-8 Note: P1: SOP-8 U: Tape & Reel Pin Configuration Typical Application Circuit G995 VSET VSET G995 FON FON FON 1 8 GND VIN VIN VIN 2 7 GND VO VO VO 3 6 GND VSET 4 5 GND CO 2.2µF GND CIN 2.2µF SOP-8 VO =1.6 X VSET TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.0 May 29, 2007 1