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FAN1581MX Datasheet

  • FAN1581MX

  • 5A Adjustable/Fixed Ultra Low Dropout Linear Regulator

  • 88.41KB

  • 13頁

  • FAIRCHILD

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FAN1581
5A Adjustable/Fixed Ultra Low Dropout
Linear Regulator
Features
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Ultra Low dropout voltage, 0.4V typical at 5A
1.2V Versions available for GTL termination
Remote sense operation
Fast transient response
Load regulation: 0.05% typical
0.5% typical initial accuracy
On-chip thermal limiting
TO-263, TO-252 and TO-220 packages
Description
The FAN1581, FAN1581-1.2, FAN1581-1.5, and FAN1581-
2.5 are ultra-low dropout regulators with 5A output current
capability. These devices have been optimized for low volt-
age applications including V
TT
bus termination, where tran-
sient response and minimum input voltage are critical. The
FAN1581 is ideal for low voltage microprocessor applica-
tions requiring a regulated output from 1.3V to 5.7V with a
power input supply of 1.75V to 6.5V. The FAN1581-1.5
offers 鏗亁ed 1.5V with 5A current capabilities for GTL+ bus
V
TT
termination. Additionally, the FAN1581-1.2 offers 鏗亁ed
1.2V output for CPU Bus termination. The FAN1581-2.5
offers 鏗亁ed 2.5V with 5A 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 FAN1581 series regulators are available in the 5-pin
TO-263, TO-252 and TO-220 packages.
Applications
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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
Typical Applications
V
IN
= 3.3V
+
10碌F
V
IN
= 3.3V
+
10碌F
V
CNTL
= 5V
+
1碌F
V
CNTL
= 5V
+
1碌F
2.1V at 5A
+
124鈩?/div>
22碌F
V
IN
= 5.75V
+
86.6鈩?/div>
10碌F
V
CNTL
= 12V
+
V
IN
= 3.3V
+
10碌F
V
CNTL
= 5V
+
1碌F
V
IN
V
SENSE
1碌F
V
IN
V
SENSE
V
IN
V
SENSE
FAN1581鈥?.5
V
OUT
V
CNTL
GND
2.5V at 5A
+
22碌F
V
IN
V
SENSE
FAN1581
V
OUT
V
CNTL
Adj
FAN1581
V
OUT
V
CNTL
Adj
124鈩?/div>
+
22碌F
5V at 5A
FAN1581-1.2
V
OUT
V
CNTL
Gnd
374鈩?/div>
1.2V at 5A
22碌F
Pentium is a registered trademark of Intel Corporation. PowerPC is a trademark of IBM Corporation.
REV. 1.2.0 11/6/03

FAN1581MX 產(chǎn)品屬性

  • 800

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - 線性

  • -

  • 正，可調(diào)式

  • 1.25 V ~ 5.7 V

  • 最高 7V

  • 0.4V @ 5A

  • 1

  • 5A

  • 0°C ~ 125°C

  • 表面貼裝

  • TO-263-4，D²Pak（3 引線+接片），TO-263AA

  • TO-263

  • 帶卷 (TR)

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