FAN1582D-2.5 FAIRCHILD [Fairchild Semiconductor], FAN1582D-2.5 Datasheet

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FAN1582D-2.5

Manufacturer Part Number
FAN1582D-2.5
Description
3A Adjustable/Fixed Ultra Low Dropout Linear Regulator
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheet
Features
• Ultra Low dropout voltage, 0.4V typical at 3A
• Remote sense operation
• Fast transient response
• Load regulation: 0.05% typical
• 0.5% initial accuracy
• On-chip thermal limiting
• 5-Pin SPAK, TO-252 DPAK, and TO-263 packages
Applications
• Pentium
• PowerPC
• 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
Pentium is a registered trademark of Intel Corporation. PowerPC is a trademark of IBM Corporation.
FAN1582
3A Adjustable/Fixed Ultra Low Dropout
Linear Regulator
V
V
CNTL
IN
= 3.3V
= 5V
10 F
®
Processors
+
, AMD K5 and K6 processors
V
V
IN
CNTL
FAN1582
Adj
V
SENSE
V
OUT
124
86.6
+
22 F
2.1V at 3A
V
V
V
Description
The FAN1582, FAN1582-1.5, and FAN1582-2.5 are ultra-low
dropout regulators with 3A output current capability. These
devices have been optimized for low voltage applications
including V
minimum input voltage are critical. The FAN1582 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 FAN1582-1.5 offers fixed 1.5V with
3A current capabilities for GTL+ bus V
FAN1582-2.5 offers fixed 2.5V with 3A 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 FAN1582 series regulators are available in the 5-Pin
SPAK, TO-252 DPAK, and TO-263 power packages.
CNTL
V
IN
CNTL
IN
= 5.75V
= 3.3V
= 12V
= 5V
10 F
10 F
1 F
TT
+
+
+
bus termination, where transient response and
V
V
V
V
FAN1582–2.5
CNTL
CNTL
IN
IN
FAN1582
GND
Adj
V
V
SENSE
SENSE
V
V
OUT
OUT
www.fairchildsemi.com
124
374
TT
REV. 1.1.2 2/26/03
termination. The
+
+
22 F
22 F
2.5V at 3A
5V at 3A

Related parts for FAN1582D-2.5

FAN1582D-2.5 Summary of contents

Page 1

FAN1582 3A Adjustable/Fixed Ultra Low Dropout Linear Regulator Features • Ultra Low dropout voltage, 0.4V typical at 3A • Remote sense operation • Fast transient response • Load regulation: 0.05% typical • 0.5% initial accuracy • On-chip thermal limiting • ...

Page 2

... Control Voltage. This pin draws small-signal power to control the FAN1582 circuitry. Connect to a voltage higher than VIN, as shown in the applications circuits. Input Voltage Control CNTL Current Limit Voltage Loop Amplifier PRODUCT SPECIFICATION FAN1582D FAN1582D-1.5, -2.5 FRONT VIEW FRONT VIEW ...

Page 3

PRODUCT SPECIFICATION Absolute Maximum Ratings Parameter CNTL Operating Junction Temperature Range Lead Temperature (Soldering, 10 sec.) Storage Temperature Range Electrical Characteristics T =25° unless otherwise specified. J OUT S ADJ ...

Page 4

FAN1582 Typical Perfomance Characteristics 1.0 0.9 0.8 0.7 0.6 T=0 C 0.5 0.4 T=25 C 0.3 0.2 0.1 0.0 0 0.5 1 1.5 OUTPUT CURRENT (A) Dropout Voltage vs. Output Current 1.275 1.270 1.265 1.260 1.255 1.250 1.245 1.240 1.235 ...

Page 5

PRODUCT SPECIFICATION Typical Perfomance Characteristics (continued -75 -50 - 100 125 150 175 JUNCTION TEMPERATURE ( C) Short-Circuit Current vs.Temeperature General The FAN1582, FAN1582-1.5, and FAN1582-2.5 are three- terminal regulators optimized ...

Page 6

FAN1582 pin of the FAN1582 for low ripple and fast transient response. When these bypassing capacitors are not used at the adjust pin, smaller values of output capacitors provide equally good results. Protection Diodes In normal operation, the FAN1582 series ...

Page 7

PRODUCT SPECIFICATION istics section provides a separate thermal resistance and maximum junction temperature for both the control circuitry and the power transistor. Calculate the maximum junction temperature for both sections to ensure that both thermal limits are met. For example, ...

Page 8

FAN1582 3.3V CNTL 1 F Table 2. Bill of Materials for Application Circuit for the FAN1582-1.5 Item Quantity 3. ...

Page 9

PRODUCT SPECIFICATION Mechanical Dimensions 5-Lead TO-263 Package 10.20 9.80 1 (1.28) 1.70 6.80 (8.00) (4.40) (1.75) (0.90) 5 GAGE PLANE R0.56 0.75 0.45 2.84 2.24 SEATING PLANE DETAIL A, ROTATED 90° SCALE: 10X REV. 1.1.2 2/26/03 A 1.40 1.00 9.40 ...

Page 10

FAN1582 Mechanical Dimensions (continued) 5-Lead TO-252 Package 6.80 6.35 5.64 5.04 6.30 5. (0.44) 0.57 0.07 1.27 0. 5.08 (5.09 GAGE PLANE 0.60 0.40 1.78 10 1.40 0 (2.90) ...

Page 11

FAN1582 Mechanical Dimensions (continued) 5-Lead SPAK Package Inches Millimeters Symbol Min. Max. Min. Max. A 0.350 0.360 8.89 0.220 NOM 5.59 NOM B b1 0.268 6.81 0.025 0.031 0. 0.070 0.080 1.78 c1 0.040 0.050 1.02 0.010 NOM ...

Page 12

... FAN1582M25X TO-263 in Tape and Reel FAN1582P25X SPAK in Tape and Reel FAN1582D25X TO-252 DPAK in Tape and Reel LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION ...

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