FAN1582 3A Adjustable/Fixed Ultra Low Dropout Linear Regulator

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FAN1582 3A Adjustable/Fixed Ultra Low Dropout Linear Regulator

March 2007

FAN1582 3A Adjustable / Fixed Ultra Low Dropout Linear Regulator
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-263 package

Description
The FAN1582, FAN1582-1.5, and FAN1582-2.5 are ultra low dropout regulators with 3A output current capability. These devices are optimized for low-voltage applications, including VTT bus termination, where transient response and minimum input voltage are critical. The FAN1582 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 FAN1582-1.5 offers fixed 1.5V with 3A current capabilities for GTL bus VTT termination. The 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. Onchip thermal limiting provides protection against combination of overload and ambient temperature that would create excessive junction temperatures. The FAN1582 is available in a 5-pin TO-263 power package.

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

Ordering Information
Part Number
FAN1582MX FAN1582M15X FAN1582M25X

Package
5-Pin TO-263 5-PinTO-263 5-Pin TO-263

Pb-Free
Yes Yes Yes
VIN 3.3V 10F

Operating Temperature Range
-65 to 150 C -65 to 150 C -65 to 150 C
VIN VSENSE

Packing Method
Tape and Reel Tape and Reel Tape and Reel

VIN 3.3V 10F VCNTL 5V

VIN

VSENSE FAN1582 VOUT

VCNTL 5V 1F 2.1V at 3A 124 22F VIN 5.75V 10F VCNTL 12V

FAN1582 2.5 VOUT VCNTL GND

2.5V at 3A 22F

VCNTL Adj

VIN

VSENSE FAN1582 VOUT

86.6

5V at 3A 124 22F

VCNTL Adj

374

Figure 1. Typical Application
Pentium is a registered trademark of Intel corportaion. PowerPCTM is a trademark of IBM Corporation.

2003 Fairchild Semiconductor Corporation FAN1582 Rev. 1.1.4

www.fairchildsemi.com

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