FAN1589

www.fairchildsemi.com FAN1589 2.7A, 1.2V Low Dropout Linear Regulator for VRM8.5 Features Fast transient response Low dropout voltage at up to 2.7A Load regulation: 0.05% typical Trimmed current limit On-chip thermal limiting Standard TO-220, TO-263, TO-263 center cut and TO-252 (DPAK) packages Description The FAN1589 is a low dropout three-terminal regulator with 2.7A output current capability. This device has been optimized for VTT bus termination, where transient response and minimum input voltage are critical. The FAN1589 offers fixed 1.2V with 2.7A current capability for a GTL+ bus VTT termination. Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload and ambient temperature that would create excessive junction temperatures. The FAN1589 is available in the industry-standard TO-220, TO-263, TO-263 center cut and TO-252 (DPAK) power packages. Applications A GTL+ bus supply for VRM 8.5 Low voltage logic supply Post regulator for switching supply Typical Application FAN1589 VOUT VIN + GND + VIN = 3.3V 10µF 1.2V at 2.7A 22µF REV. 1.0.3 2/25/02 FAN1589 PRODUCT SPECIFICATION Pin Assignments FAN1589T FRONT VIEW FAN1589M FRONT VIEW Tab is OUT Tab is OUT 1 2 3 1 2 3 GND OUT IN 3-Lead Plastic TO-263 θJC = 3°C/W* GND OUT IN 3-Lead Plastic TO-220 θJC = 3°C/W FAN1589MC FRONT VIEW FAN1589D Tab is OUT 1 2 3 1 2 3 FRONT VIEW Tab ...