More DDR product information

The FAN1581, FAN1581x12, FAN1581-1.5, and FAN1581-2.5 are ultra-low dropout regulators with 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 FAN1581 is ideal for low voltage microprocessor applications requiring a regulated output from 1.3V to 5.7V with a power input supply of 1.75V to 6.5V. The FAN1581-1.5 offers fixed 1.5V with 5A current capabilities for GTL+ bus V_TT termination. Additionally, the FAN1581x12 offers fixed 1.2V output for CPU Bus termination. The FAN1581-2.5 offers fixed 2.5V with 5A current capability for logic IC operation and processors while minimizing the overall power dissipation.

Current limit ensures 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 FAN1581 series regulators are available in the 5-Pin TO-263, TO-252 and TO-220 packages.

• Ultra Low dropout voltage, 0.4V typical at 5A
• 1.2V Versions available for GTL termination
• Remote sense operation
• Fast transient response
• Load regulation: 0.05% typical
• 0.5% initial accuracy
• On-chip thermal limiting
• TO-263, TO-252 and TO-220 packages

• Support of GTL+ bus supply
• Low voltage logic supply
• Embedded Processor supplies
• Split plane regulator
• 2.5V and 1.8V Logic Families
• DDR Termination Supply