FAN1084 Fairchild Semiconductor, FAN1084 Datasheet
FAN1084
Manufacturer Part Number
FAN1084
Description
4.5A Adjustable/Fixed Low Dropout Linear Regulator
Manufacturer
Fairchild Semiconductor
Datasheet
1.FAN1084.pdf
(11 pages)
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Features
• Fast transient response
• Low dropout voltage at up to 4.5A
• Load regulation: 0.5% typical
• On-chip thermal limiting
• Standard TO-220, TO-263 center cut, and TO-252
Applications
• Desktop PCs, RISC and embedded processors’ supply
• GTL, SSTL logic Reference bus supply
• Low voltage V
• Battery-powered circuitry
• Post regulator for switching supply
• Cable and ADSL modems’ DSP core supply
• Set Top Boxes and Web Boxes modules’ supply
Application Diagrams
FAN1084
4.5A Adjustable/Fixed Low Dropout Linear Regulator
packages
CC
logic supply
V
IN = 3.3V
V
IN = 5V
10 F
10 F
+
+
V
V
FAN1084-1.5
IN
IN
FAN1084
ADJ
GND
V
V
OUT
OUT
Description
The FAN1084, FAN1084-1.5, and FAN1084-3.3 are low
dropout three-terminal regulators with 4.5A output current
capability. These devices have been optimized for low voltage
applications including V
response and minimum input voltage are critical. The
FAN1084 is ideal for low voltage microprocessor applica-
tions requiring a regulated output from 1.5V to 3.6A with an
input supply of 5V or less. The FAN1084-1.5 offers fixed
1.5V with 4.5A current capabilities for GTL+ bus V
termination. The FAN1084-3.3 offers a fixed 3.3V output
at 4.5A.
On-chip thermal limiting provides protection against any
combination of overload and ambient temperature that
would create excessive junction temperatures.
The FAN1084 series regulators are available in the industry-
standard TO-220, TO-263 center cut, and TO-252 (DPAK)
power packages.
124
124
+
22 F
1.5V at 4.5A
+
22 F
2.5V at 4.5A
TT
bus termination, where transient
www.fairchildsemi.com
REV. 1.0.6 11/18/02
TT
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