G994

Global Mixed-mode Technology Inc. G994 4X Linear Fan Driver for 12V DC Fan Features „ VO Follows 4.0 Times of VSET „ 0.5V Dropout @ 0.5A „ Over Current and Over Temperature Protection „ Enable Pin „ 100µA Quiescent Current in Shutdown „ Power TO-252-5, SOP-8, SOP-8 with power pad Package Applications „ Notebook Computer Fan Driver „ Projector Cooling Fan „ Battery Powered Systems „ Motherboards „ Peripheral Cards Ordering Information ORDER NUMBER G994TJU G994P1U G994F1U Note: TJ: TO-252-5 U: Tape & Reel P1: SOP-8 MARKING 994 G994 G994 F1:SOP (FD) General Description The G994 is a high performance positive voltage regulator designed for use in applications requiring very low dropout voltage at up to 0.5 Amps. The G994 VO output voltage follows the 4.0 times of VSET voltage until it reaches VIN voltage. The VSET voltage must be larger than 1V to guarantee VO 4.0 times of VSET. An enable pin further reduces power dissipation while shut down. The G994 provides excellent regulation over variations in line, load and temperature. The G994 is available in the power TO-252-5, SOP-8 and SOP-8 with power pad package. TEMP. RANGE -40°C ~ +85°C -40°C ~ +85°C -40°C ~ +85°C PACKAGE (Pb free) TO-252-5 SOP-8 SOP-8 (FD) Pin Configuration Typical Application Circuit G994 GND Top View 123 4 5 VO VIN GND VEN VSET TO-252-5 Ver: 1.0 Jan 25, 2006 VO 1 VIN 2 VEN 3 VSET 4 G994 SOP-8 8 GND 7 GND 6 GND 5 GND VO 1 G994 8 NC/GND VIN 2 7 NC/GND VEN 3 6 GND VSET 4 5 NC/GND SOP-8 (...