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FAN1582 Arkusz danych(PDF) 1 Page - Fairchild Semiconductor

Numer części FAN1582
Szczegółowy opis  3A Adjustable/Fixed Ultra Low Dropout Linear Regulator
Download  12 Pages
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Producent  FAIRCHILD [Fairchild Semiconductor]
Strona internetowa  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN1582 Arkusz danych(HTML) 1 Page - Fairchild Semiconductor

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www.fairchildsemi.com
Pentium is a registered trademark of Intel Corporation. PowerPC is a trademark of IBM Corporation.
REV. 1.1.2 2/26/03
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 SPAK, TO-252 DPAK, and TO-263 packages
Applications
• Pentium® Processors
• PowerPC, AMD K5 and K6 processors
• Pentium support of GTL+ bus supply
• Low voltage logic supply
• Embedded Processor supplies
• Split plane regulator
• New 2.5V and 1.8V Logic Families
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
SPAK, 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
124
22
µF
VCNTL = 12V
5V at 3A
10
µF
VIN = 5.75V
+
+
VIN
VSENSE
VCNTL
Adj
VOUT
FAN1582
374
124
FAN1582
3A Adjustable/Fixed Ultra Low Dropout
Linear Regulator


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