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Pentium is a registered trademark of Intel Corporation. PowerPC is a trademark of IBM Corporation.

REV. 1.1.3 11/9/03

Features

• Ultra Low dropout voltage, 0.4V typical at 3A

• Remote sense operation

• Fast transient response

• Load regulation: 0.05% typical

• 0.5% initial accuracy

• On-chip thermal limiting

• 5-Pin TO-252 DPAK, and TO-263 packages

Applications

• 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

Description

The FAN1582, FAN1582-1.5, and FAN1582-2.5 are ultra-low

dropout regulators with 3A output current capability. These

devices have been optimized for low voltage applications

minimum input voltage are critical. The FAN1582 is ideal

for low voltage microprocessor applications requiring a reg-

ulated output from 1.3V to 5.7V with a power input supply

of 1.75V to 6.5V. The FAN1582-1.5 offers fixed 1.5V with

FAN1582-2.5 offers fixed 2.5V with 3A 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 exces-

sive junction temperatures.

The FAN1582 series regulators are available in the 5-Pin

TO-252 DPAK, and TO-263 power packages.

Typical Applications

22

µF

2.1V at 3A

10

µF

+

+

Adj

FAN1582

22

µF

2.5V at 3A

10

µF

+

1

µF

+

+

GND

FAN1582–2.5

86.6

Ω

124

Ω

22

µF

5V at 3A

10

µF

+

+

Adj

FAN1582

374

Ω

124

Ω

FAN1582

3A Adjustable/Fixed Ultra Low Dropout

Linear Regulator