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Número de pieza | FAN1585AT | |
Descripción | 5A Adjustable/Fixed Low Dropout Linear Regulator | |
Fabricantes | Fairchild Semiconductor | |
Logotipo | ||
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FAN1585A
5A Adjustable/Fixed Low Dropout Linear Regulator
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
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 VTT bus termination for FC-PGA,
where transient response and minimum input voltage are
critical. The FAN1585A-1.5 offers fixed 1.5V with 5A
current capabilities for AGTL+ bus VTT termination for
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.
Typical Applications
VIN = 3.3V
22µF
+
FAN1585A
VIN VOUT
ADJ
VOUT = VREF(1 + R2/R1) + IAdj • R2
R1
124Ω
1.5V at 5A
+
22µF
R2
24.9Ω
VIN = 3.3V
22µF
+
FAN1585A-1.5
VIN VOUT
GND
1.5V at 5A
+
22µF
REV. 1.1.5 11/7/03
1 page PRODUCT SPECIFICATION
FAN1585A
Typical Performance Characteristics (continued)
8.0
7.0
6.0
5.0
4.0
-75 -50 -25 0 25 50 75 100 125 150 175
JUNCTION TEMPERATURE (°C)
Figure 7. Short-Circuit Current vs. Temperature
90
80
70
60
50
40
30
20 (VIN – VOUT) ≤ 3V
0.5V ≤ VRIPPLE ≤ 2V
10 IOUT = 5A
0
10 100
1K
10K
FREQUENCY (Hz)
100K
Figure 8. Ripple Rejection vs. Frequency
20
15
10
5
0
50 60 70 80 90 100 110 120 130 140 150
CASE TEMPERATURE (°C)
Figure 9. Maximum Power Dissipation
2.5
2
1.5
Area of Instability
1
0.5
0
0
Stable Area
1000
2000
3000
4000
5000
LOAD CURRENT (mA)
Figure 10. Stability Region VIN/VOUT = 5V/1.5V
REV. 1.1.5 11/7/03
5
5 Page PRODUCT SPECIFICATION
Mechanical Dimensions (continued)
3-Lead TO-220 Package
Symbol
A
b
b1
c1
øP
D
E
e
e1
e3
F
H1
J1
L
L1
Q
α
Inches
Min. Max.
.140 .190
.015 .040
.045 .070
.014 .022
.139 .161
.560 .650
.380 .420
.090 .110
.190 .210
.045 —
.020 .055
.230 .270
.060 .115
.500 .580
.250 BSC
.100 .135
3° 7°
Millimeters
Min. Max.
3.56 4.83
.38 1.02
1.14 1.78
.36 .56
3.53 4.09
14.22 16.51
9.65 10.67
2.29 2.79
4.83 5.33
1.14 —
.51 1.40
5.94 6.87
2.04 2.92
12.70 14.73
6.35 BSC
2.54 3.43
3° 7°
Notes
Notes:
1. Dimension c1 apply for lead finish.
e
e1
L
e3 b1
b
L1
H1
Q
E
E-PIN øP
c1
J1
α (5X)
D
A
FAN1585A
F
REV. 1.1.5 11/7/03
11
11 Page |
Páginas | Total 12 Páginas | |
PDF Descargar | [ Datasheet FAN1585AT.PDF ] |
Número de pieza | Descripción | Fabricantes |
FAN1585A | 5A Adjustable/Fixed Low Dropout Linear Regulator | Fairchild Semiconductor |
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FAN1585AM18X | 5A Adjustable/Fixed Low Dropout Linear Regulator | Fairchild Semiconductor |
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