The FAN1084, FAN1084-1.5 and FAN1084-3.3 are low dropout three-terminal regulators with 4.5A output current capability. These devices have been optimized for low voltage applications including V_TT bus termination, where transient response and minimum input voltage are critical. The FAN1084 is ideal for low voltage microprocessor applications requiring a regulated output from 1.5V to 3.6A with an input supply of 5V or less. The FAN1084-1.5 offers fixed 1.5V with 4.5A current capabilities for GTL+ bus V_TT termination. the FAN1084-3.3 offers a fixed 3.3V output at 4.5A.

On-chip thermal limiting provides protection against any combination of overload and ambient temperature that would create excessive junction temperatures.

The FAN1084 series regulators are available in the industry-standard TO-220, TO-263 center cut, and TO-252 (DPAK) power packages.

• Fast transient response
• Low dropout voltage at up to 4.5A
• Load regulation: 0.5% typical
• On-chip thermal limiting
• Standard TO-220, TO-263 center cut, and TO-252 packages

• Desktop PCs, RISC and embedded processors' supply
• GTL, SSTL logic Reference bus supply
• Low voltage V_CC logic supply
• Battery-powered circuitry
• Post regulator for switching supply
• Cable and ADSL modems' DSP core supply
• Set Top Boxes and Web Boxes modules' supply