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Datasheet> All Categories > Power/power management> The power supply circuit> FAN1581P-1.5
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FAN1581P-1.5

Description
Fixed Positive LDO Regulator, 1.5V, 0.6V Dropout, BIPolar, PSSO5, PLASTIC, SPAK-5
CategoryPower/power management    The power supply circuit   
File Size106KB，11 Pages
ManufacturerFairchild
Websitehttp://www.fairchildsemi.com/
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FAN1581P-1.5 Overview

Fixed Positive LDO Regulator, 1.5V, 0.6V Dropout, BIPolar, PSSO5, PLASTIC, SPAK-5

FAN1581P-1.5 Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerFairchild
Parts packaging codeMODULE
package instructionTO-263, SMSIP5H,.41,67TB
Contacts5
Reach Compliance Codecompliant
ECCN codeEAR99
AdjustabilityFIXED
Maximum drop-back voltage 10.6 V
Nominal dropback voltage 11.05 V
Maximum absolute input voltage7 V
Maximum input voltage7 V
Minimum input voltage3 V
JESD-30 codeR-PSSO-G5
JESD-609 codee0
length9.395 mm
Maximum grid adjustment rate0.003%
Maximum load regulation0.005%
Number of functions1
Output times1
Number of terminals5
Working temperatureTJ-Max125 °C
Working temperature TJ-Min
Maximum output current 15 A
Maximum output voltage 11.53 V
Minimum output voltage 11.47 V
Nominal output voltage 11.5 V
Package body materialPLASTIC/EPOXY
encapsulated codeTO-263
Encapsulate equivalent codeSMSIP5H,.41,67TB
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Certification statusNot Qualified
Regulator typeFIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height2.16 mm
surface mountYES
technologyBIPOLAR
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.7 mm
Terminal locationSINGLE
Maximum time at peak reflow temperatureNOT SPECIFIED
Maximum voltage tolerance2%
width8 mm

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www.fairchildsemi.com
FAN1581
5A Adjustable/Fixed Ultra Low Dropout
Linear Regulator
Features
•
•
•
•
•
•
•
Ultra Low dropout voltage, 0.4V typical at 5A
Remote sense operation
Fast transient response
Load regulation: 0.05% typical
0.5% initial accuracy
On-chip thermal limiting
5-Pin SPAK and TO-263 packages
Description
The FAN1581, FAN1581-1.5, and FAN1581-2.5 are ultra-low
dropout regulators with 5A output current capability. These
devices have been optimized for low voltage applications
including V
TT
bus termination, where transient response and
minimum input voltage are critical. The FAN1581 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 FAN1581-1.5 offers fixed 1.5V with
5A current capabilities for GTL+ bus V
TT
termination. The
FAN1581-2.5 offers fixed 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
SPAK and TO-263 power 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
Typical Applications
V
IN
= 3.3V
+
10µF
V
IN
= 3.3V
+
10µF
V
CNTL
= 5V
V
CNTL
= 5V
+
1µF
2.1V at 5A
+
124Ω
22µF
V
IN
= 5.75V
+
86.6Ω
10µF
V
CNTL
= 12V
V
IN
V
SENSE
V
IN
V
SENSE
FAN1581–2.5
V
OUT
V
CNTL
GND
2.5V at 5A
+
22µF
V
IN
V
SENSE
FAN1581
V
OUT
V
CNTL
Adj
FAN1581
V
OUT
V
CNTL
Adj
124Ω
+
22µF
5V at 5A
374Ω
Pentium is a registered trademark of Intel Corporation. PowerPC is a trademark of IBM Corporation.
REV. 1.0.2 8/15/01

FAN1581P-1.5 Related Products

FAN1581P-1.5 FAN1581M-2.5 FAN1581P-2.5 FAN1581P FAN1581M-1.5
Description Fixed Positive LDO Regulator, 1.5V, 0.6V Dropout, BIPolar, PSSO5, PLASTIC, SPAK-5 Fixed Positive LDO Regulator, 2.5V, 0.6V Dropout, BIPolar, PSSO5, PLASTIC, TO-263, 5 PIN Fixed Positive LDO Regulator, 2.5V, 0.6V Dropout, BIPolar, PSSO5, PLASTIC, SPAK-5 Adjustable Positive LDO Regulator, 1.25V Min, 5.7V Max, 0.6V Dropout, BIPolar, PSSO5, POWER, PLASTIC, SPAK-5 Fixed Positive LDO Regulator, 1.5V, 0.6V Dropout, BIPolar, PSSO5, PLASTIC, TO-263, 5 PIN
Is it Rohs certified? incompatible incompatible incompatible incompatible incompatible
Parts packaging code MODULE D2PAK MODULE MODULE D2PAK
package instruction TO-263, SMSIP5H,.41,67TB TO-263, SMSIP5H,.6,67TB TO-263, SMSIP5H,.41,67TB TO-263, SMSIP5H,.41,67TB TO-263, SMSIP5H,.6,67TB
Contacts 5 4 5 5 4
Reach Compliance Code compliant unknown compliant compliant unknown
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99
Adjustability FIXED FIXED FIXED ADJUSTABLE FIXED
Maximum drop-back voltage 1 0.6 V 0.6 V 0.6 V 0.6 V 0.6 V
Nominal dropback voltage 1 1.05 V 1.05 V 1.05 V 3 V 1.05 V
JESD-30 code R-PSSO-G5 R-PSSO-G5 R-PSSO-G5 R-PSSO-G5 R-PSSO-G5
JESD-609 code e0 e0 e0 e0 e0
length 9.395 mm 9.97 mm 9.395 mm 9.395 mm 9.97 mm
Number of functions 1 1 1 1 1
Output times 1 1 1 1 1
Number of terminals 5 5 5 5 5
Working temperatureTJ-Max 125 °C 125 °C 125 °C 125 °C 125 °C
Maximum output current 1 5 A 5 A 5 A 5 A 5 A
Maximum output voltage 1 1.53 V 2.526 V 2.526 V 5.7 V 1.53 V
Minimum output voltage 1 1.47 V 2.474 V 2.474 V 1.25 V 1.47 V
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TO-263 TO-263 TO-263 TO-263 TO-263
Encapsulate equivalent code SMSIP5H,.41,67TB SMSIP5H,.6,67TB SMSIP5H,.41,67TB SMSIP5H,.41,67TB SMSIP5H,.6,67TB
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE
Peak Reflow Temperature (Celsius) NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Regulator type FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height 2.16 mm 4.8 mm 2.16 mm 2.16 mm 4.8 mm
surface mount YES YES YES YES YES
technology BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal pitch 1.7 mm 1.7 mm 1.7 mm 1.7 mm 1.7 mm
Terminal location SINGLE SINGLE SINGLE SINGLE SINGLE
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
width 8 mm 8.955 mm 8 mm 8 mm 8.955 mm
Maker Fairchild - Fairchild Fairchild Fairchild
Maximum absolute input voltage 7 V 7 V 7 V - 7 V
Maximum input voltage 7 V 7 V 7 V - 7 V
Minimum input voltage 3 V 5.1 V 5.1 V - 3 V
Maximum grid adjustment rate 0.003% 0.003% 0.003% - 0.003%
Maximum load regulation 0.005% 0.005% 0.005% - 0.005%
Nominal output voltage 1 1.5 V 2.5 V 2.5 V - 1.5 V
Maximum voltage tolerance 2% 2% 1% - 2%

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