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FAN1582 View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
Manufacturer
FAN1582 Datasheet PDF : 11 Pages
1 2 3 4 5 6 7 8 9 10
www.fairchildsemi.com
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-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
VIN = 3.3V
+
10µF
VCNTL = 5V
VIN
VSENSE
FAN1582
VCNTL
VOUT
Adj
VIN = 3.3V
+
10µF
124
2.1V at 3A
+
22µF
86.6
VCNTL = 5V
+
1µF
VIN = 5.75V
+
10µF
VCNTL = 12V
VIN
VSENSE
FAN1582–2.5
VCNTL
VOUT
GND
VIN
VSENSE
FAN1582
VCNTL
VOUT
Adj
2.5V at 3A
+
22µF
124
5V at 3A
+
22µF
374
Pentium is a registered trademark of Intel Corporation. PowerPC is a trademark of IBM Corporation.
REV. 1.1.3 11/9/03
 

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