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FAN1582_0311 Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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FAN1582_0311 Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 11 page www.fairchildsemi.com 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 including VTT bus termination, where transient response and 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 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. 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 VCNTL = 5V 2.1V at 3A 10 µF VIN = 3.3V + + VIN VSENSE VCNTL Adj VOUT FAN1582 22 µF VCNTL = 5V 2.5V at 3A 10 µF VIN = 3.3V + 1 µF + + VIN VSENSE VCNTL GND VOUT FAN1582–2.5 86.6 Ω 124 Ω 22 µF VCNTL = 12V 5V at 3A 10 µF VIN = 5.75V + + VIN VSENSE VCNTL Adj VOUT FAN1582 374 Ω 124 Ω FAN1582 3A Adjustable/Fixed Ultra Low Dropout Linear Regulator |
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