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FAN1587AMC15X 반도체 회로 부품 판매점

3A Adjustable/Fixed Low Dropout Linear Regulator



Fairchild Semiconductor 로고
Fairchild Semiconductor
FAN1587AMC15X 데이터시트, 핀배열, 회로
www.fairchildsemi.com
FAN1587A
3A Adjustable/Fixed Low Dropout Linear Regulator
Features
• Fast transient response
• Low dropout voltage at up to 3A
• Load regulation: 0.05% typical
• Trimmed current limit
• On-chip thermal limiting
• Standard TO-220, TO-263, TO-263 center cut,
and TO-252 packages
Applications
• Pentium® Class GTL+ bus supply
• Low voltage logic supply
• Post regulator for switching supply
• 12V to 5V linear regulator
• 3.3V to 1.5V linear regulator
Description
The FAN1587A, FAN1587A-1.5, and FAN1587A-3.3 are low
dropout three-terminal regulators with 3A output current capa-
bility. These devices have been optimized for low voltage
applications including VTT bus termination, where transient
response and minimum input voltage are critical. The
FAN1587A is ideal for low voltage microprocessor applica-
tions requiring a regulated output from 1.5V to 3.6V with an
input supply of 12V or less. The FAN1587A-1.5 offers fixed
1.5V with 3A current capability for GTL+ bus VTT termina-
tion. The FAN1587A-3.3 offers fixed 3.3V current capability
for logic IC operation.
Current limit is trimmed to ensure specified output current and
controlled short-circuit current. On-chip thermal limiting pro-
vides protection against any combination of overload and
ambient temperature that would create excessive junction
temperatures.
The FAN1587A, FAN1587A-1.5, and FAN1587A-3.3 are
available in the industry-standard TO-220, TO-263, TO-263
center cut, and TO-252 (DPAK) power packages.
Typical Applications
VIN = 12V
22µF
+
FAN1587A
VIN VOUT
ADJ
VOUT = VREF (1+R2/R1)+IADJ*R2
VIN = 9V
22µF
+
FAN1587A-3.3
VIN VOUT
GND
R1
124
R2
768
9V at 3A
+
22µF
3.3V at 3A
+
22µF
65-1587-16
Pentium is a registered trademark of Intel Corporation.
REV. 1.0.5 11/10/03


FAN1587AMC15X 데이터시트, 핀배열, 회로
FAN1587A
Pin Assignments
FAN1587AM-1.5
FRONT VIEW
FAN1587AM
FRONT VIEW
12 3
12 3
Tab is Out.
PRODUCT SPECIFICATION
FAN1587AT
FRONT VIEW
FAN1587AT-1.5, -3.3V
FRONT VIEW
12 3
Tab is Out.
12 3
GND OUT IN
ADJ OUT IN
3-Lead Plastic TO-263
θJC = 3°C/W*
ADJ OUT IN
GND OUT IN
3-Lead Plastic TO-220
θJC = 3°C/W
FAN1587AMC-1.5, 3.3
FRONT VIEW
FAN1587AMC
FRONT VIEW
FAN1587AD-1.5, 3.3
FRONT VIEW
FAN1587AD
FRONT VIEW
12 3
12 3
Tab is Out.
12 3
123
Tab is Out.
GND
IN
ADJ IN
3-Lead Plastic TO-263 Center Cut
θJC = 3°C/W*
GND IN
ADJ IN
3-Lead Plastic TO-252
θJC = 3°C/W*
* With package soldered to 0.5 square inch copper area over backside ground plane or internal power plane,
θJA can vary from 30°C/W to more than 40°C/W. Other mounting techniques can provide a thermal resistance
lower than 30°C/W.
2 REV. 1.0.5 11/10/03




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FAN1587AMC15X regulator

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3A Adjustable/Fixed Low Dropout Linear Regulator - Fairchild Semiconductor