FAN1585AT18 FAIRCHILD [Fairchild Semiconductor], FAN1585AT18 Datasheet

no-image

FAN1585AT18

Manufacturer Part Number
FAN1585AT18
Description
5A Adjustable/Fixed Low Dropout Linear Regulator
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheet
Features
• Fast transient response
• Low dropout voltage at up to 5A
• Load regulation: 0.05% typical
• Trimmed current limit
• On-chip thermal limiting
• Standard TO-220, TO-263 and TO-263 center cut packages
Applications
• AGTL+ bus supply for FC-PGA
• Low voltage logic supply
• Post regulator for switching supply
• 3.3V to 1.5V linear regulator
• 5V to 1.8V linear regulator
Typical Applications
FAN1585A
5A Adjustable/Fixed Low Dropout Linear Regulator
V
V
IN = 3.3V
V
IN = 3.3V
OUT
22 F
22 F
= V
REF
(1 + R2/R1) + I
+
+
V
V
FAN1585A-1.5
IN
IN
FAN1585A
ADJ
GND
Adj
• R2
V
V
OUT
OUT
Description
The FAN1585A, FAN1585A-1.5, and FAN1585A-1.8 are
low dropout three-terminal regulators with 5A output current
capability. These devices have been optimized for low volt-
age applications including V
where transient response and minimum input voltage are
critical. The FAN1585A-1.5 offers fixed 1.5V with 5A
current capabilities for AGTL+ bus V
FC-PGA. The FAN1585A is ideal for low voltage micro-
processor applications requiring a regulated output from
1.5V to 3.6V with an input supply of 5V or less, or for
FC-PGA applications with significant trace resistance.
Current limit is trimmed to ensure specified output current
and controlled short-circuit current. On-chip thermal limit-
ing provides protection against any combination of overload
and ambient temperature that would create excessive junc-
tion temperatures.
The FAN1585A series regulators are available in the industry-
standard TO-220, TO-263 and TO-263 center cut power
packages.
R1
124
R2
24.9
+
22 F
1.5V at 5A
+
22 F
1.5V at 5A
TT
www.fairchildsemi.com
bus termination for FC-PGA,
TT
termination for
REV. 1.1.5 11/7/03

Related parts for FAN1585AT18

FAN1585AT18 Summary of contents

Page 1

FAN1585A 5A Adjustable/Fixed Low Dropout Linear Regulator Features • Fast transient response • Low dropout voltage • Load regulation: 0.05% typical • Trimmed current limit • On-chip thermal limiting • Standard TO-220, TO-263 and TO-263 center ...

Page 2

FAN1585A Pin Assignments FAN1585AM-1.5 FAN1585AM-1.8 FAN1585AM FRONT VIEW FRONT VIEW Tab is Out GND OUT IN ADJ OUT IN 3-Lead Plastic TO-263 = 3 C/W* JC *With package soldered to 0.5 square inch copper ...

Page 3

PRODUCT SPECIFICATION Electrical Characteristics Tj = 25°C unless otherwise specified. The denotes specifications which apply over the specified operating temperature range. Parameter Conditions 3 Reference Voltage 1.5V 10mA 4 Output Voltage 3.0V 10mA 5 Output Voltage 3.3V 10mA 1, 2 ...

Page 4

FAN1585A Typical Performance Characteristics 1.5 1.4 1.3 1.2 1.1 1.0 T=0 C 0.9 T=125 C T=25 C 0.8 0.7 0.6 0 OUTPUT CURRENT (A) Figure 1. Dropout Voltage vs. Output Current 1.275 1.270 1.265 1.260 1.255 ...

Page 5

PRODUCT SPECIFICATION Typical Performance Characteristics 8.0 7.0 6.0 5.0 4.0 -75 -50 - 100 125 150 175 JUNCTION TEMPERATURE ( C) Figure 7. Short-Circuit Current vs. Temperature ...

Page 6

FAN1585A Applications Information General The FAN1585A and FAN1585A-1.5 are three-terminal regu- lators optimized for GTL+ V termination and logic appli- TT cations. These devices are short-circuit protected and offer thermal shutdown to turn off the regulator when the junction temperature ...

Page 7

PRODUCT SPECIFICATION FAN1585A V IN OUT ADJ REF ADJ R2/R1 (R2) OUT REF ADJ Figure 11. Basic Regulator Circuit Load Regulation It is not ...

Page 8

FAN1585A Junction-to-case thermal resistance is specified from the IC junction to the bottom of the case directly below the die. This is the lowest resistance path for heat flow. Proper mounting ensures the best thermal flow from this area of ...

Page 9

PRODUCT SPECIFICATION Mechanical Dimensions 3-Lead TO-263 Package Inches Millimeters Symbol Min. Max. Min. A .160 .190 4.06 b .020 .036 0.51 b2 .049 .051 1.25 c2 .045 .055 1.14 D .340 .380 8.64 E .380 .405 9.65 e .100 BSC ...

Page 10

FAN1585A Mechanical Dimensions 3-Lead TO-263 Center Cut Package Inches Millimeters Symbol Min. Max. Min. A .160 .190 4.06 b .020 .036 0.51 b2 .049 .051 1.25 c2 .045 .055 1.14 D .340 .380 8.64 E .380 .405 9.65 e .100 ...

Page 11

PRODUCT SPECIFICATION Mechanical Dimensions 3-Lead TO-220 Package Inches Millimeters Symbol Min. Max. Min. A .140 .190 3.56 b .015 .040 .38 b1 .045 .070 1.14 c1 .014 .022 .36 øP .139 .161 3.53 D .560 .650 14.22 E .380 .420 ...

Page 12

... TO-220 FAN1585AM18X TO-263 in Tape and Reel FAN1585AMC18X TO-263 Center Cut in Tape and Reel FAN1585AT18 TO-220 DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS ...

Related keywords