RC1587D-3.3 [FAIRCHILD]
Fixed Positive LDO Regulator, 3.3V, 1.3V Dropout, PSSO2, PLASTIC, TO-252, 3 PIN;
| 型号： | RC1587D-3.3 |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | Fixed Positive LDO Regulator, 3.3V, 1.3V Dropout, PSSO2, PLASTIC, TO-252, 3 PIN 输出元件 调节器 |
| 文件： | 总14页 (文件大小：147K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
www.fairchildsemi.com
RC1587
3A Adjustable/Fixed Low Dropout Linear Regulator
Features
Description
• Fast transient response
The RC1587, RC1587-1.5, and RC1587-3.3 are low dropout
• Low dropout voltage at up to 3A
three-terminal regulators with 3A output current capability.
• Load regulation: 0.05% typical
These devices have been optimized for low voltage applica-
• Trimmed current limit
tions including V bus termination, where transient response
TT
• On-chip thermal limiting
• Standard TO-220, TO-263, TO-263 center cut,
and TO-252 packages
and minimum input voltage are critical. The RC1587 is ideal
for low voltage microprocessor applications requiring a reg-
ulated output from 1.5V to 3.6V with an input supply of 5V
or less. The RC1587-1.5 offers fixed 1.5V with 3A current
capability for GTL+ bus V termination. The RC1587-3.3
TT
offers fixed 3.3V current capability for logic IC operation.
Applications
• Pentium® Class GTL+ bus supply
• Low voltage logic supply
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.
• Post regulator for switching supply
The RC1587, RC1587-1.5, and RC1587-3.3 are available in
the industry-standard TO-220, TO-263, TO-263 center cut,
and TO-252 (DPAK) power packages.
Typical Applications
RC1587
V
V
V
= 3.3V
IN
OUT
1.5V at 3A
22µF
IN
+
+
ADJ
10µF
124Ω
24.9Ω
RC1587-1.5
V
V
V
= 3.3V
IN
OUT
1.5V at 3A
22µF
IN
+
+
GND
10µF
RC1587-3.3
V
V
V
= 5V
IN
OUT
3.3V at 3A
22µF
IN
+
+
GND
10µF
65-1587-16
Pentium is a registered trademark of Intel Corporation.
REV. 1.5 1/12/01
RC1587
PRODUCT SPECIFICATION
Pin Assignments
RC1587T
RC1587T-1.5, -3.3V
FRONT VIEW
FRONT VIEW
RC1587M-1.5, 3.3
FRONT VIEW
RC1587M
FRONT VIEW
1
2
3
1
2
3
1
2
3
1
2
3
GND OUT IN
ADJ OUT IN
ADJ OUT IN
GND OUT IN
3-Lead Plastic TO-263
= 3°C/W*
3-Lead Plastic TO-220
= 3°C/W
θ
θ
JC
JC
RC1587MC-1.5, 3.3
FRONT VIEW
RC1587MC
RC1587D-1.5, 3.3
FRONT VIEW
RC1587D
FRONT VIEW
FRONT VIEW
Tab is Out.
Tab is Out.
1
2
3
1
2
3
1
2
3
1
2
3
GND
IN
ADJ
IN
GND
IN
ADJ
IN
3-Lead Plastic TO-252
= 3°C/W*
θ
JC
3-Lead Plastic TO-263 Center Cut
= 3°C/W*
θ
JC
* θ can vary from 20°C/W to >40°C/W with various mounting techniques.
JA
Absolute Maximum Ratings
Parameter
Min.
Max.
7
Unit
V
V
IN
Operating Junction Temperature Range
Storage Temperature Range
0
125
150
300
°C
°C
°C
-65
Lead Temperature (Soldering, 10 sec.)
2
REV. 1.5
PRODUCT SPECIFICATION
RC1587
Electrical Characteristics
Tj = 25°C unless otherwise specified.
The • denotes specifications which apply over the specified operating temperature range.
Parameter
Conditions
Min.
Typ.
Max
Units
Reference Voltage3
1.5V ≤ (V – V
) ≤ 5.75V,
•
•
•
•
•
1.225
(-2%)
1.250
1.275
(+2%)
V
IN
OUT
10mA ≤ I
OUT
≤ 3A
Output Voltage4
Output Voltage5
Line Regulation1, 2
Load Regulation1, 2
3.3V ≤ V ≤ 7V
IN
1.47
1.5
3.3
1.53
3.366
0.2
V
V
10mA ≤ I
OUT
≤ 3A
5.1V ≤ V ≤ 7V
IN
3.234
10mA ≤ I
OUT
≤ 3A
(V
OUT
+ 1.5V) ≤ V ≤ 7V,
IN
0.005
0.05
%
%
I
= 10mA
OUT
(V – V
10mA ≤ I
OUT
) = 3V
≤ 3A
0.5
IN OUT
Dropout Voltage
Current Limit
Adjust Pin Current3
∆V
= 1%, I
= 3A
•
•
•
•
1.150
4
1.300
V
A
REF
OUT
(V – V
IN OUT
) = 2V
3.1
35
120
5
µA
µA
Adjust Pin Current Change3 1.5V ≤ (V – V
) ≤ 5.75V,
) ≤ 5.75V
0.2
IN
OUT
10mA ≤ I
OUT
≤ 3A
Minimum Load Current
Quiescent Current
Ripple Rejection
1.5V ≤ (V – V
IN
•
•
10
60
mA
mA
dB
OUT
V
IN
= 5V
4
13
f = 120Hz, C
(V – V
IN
= 22µF Tantalum,
) = 3V, I = 3A
72
OUT
OUT OUT
Thermal Regulation
Temperature Stability
Long-Term Stability
RMS Output Noise
T = 25°C, 30ms pulse
0.004
0.5
0.02
1.0
%/W
%
A
•
T = 125°C, 1000 hrs.
A
0.03
0.003
%
T = 25°C, 10Hz ≤ f ≤ 10kHz
A
%
(% of V
)
OUT
Thermal Resistance,
Junction to Case
TO-220
3
3
°C/W
°C/W
°C
TO-263, TO-252
Thermal Shutdown
150
Notes:
1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulation are
measured at a constant junction temperature by low duty cycle pulse testing.
2. Line and load regulation are guaranteed up to the maximum power dissipation (18W). Power dissipation is determined by
input/output differential and the output currrent. Guaranteed maximum output power will not be available over the full input/
output voltage range.
3. RC1587 only.
4. RC1587-1.5 only.
5. RC1587-3.3 only.
REV. 1.5
3
RC1587
PRODUCT SPECIFICATION
Typical Performance Characteristics
0.10
0.05
0
1.5
1.4
1.3
1.2
1.1
∆I = 3A
-0.05
-0.10
-0.15
-0.20
1.0
0.9
0.8
0.7
0.6
0.5
T=0°C
T=125°C
T=25°C
-75 -50 -25
0
25 50 75 100 125 150 175
0
0.5
1
1.5
2
2.5
3.0
JUNCTION TEMPERATURE (°C)
OUTPUT CURRENT (A)
Figure 1. Dropout Voltage vs. Output Current
Figure 2. Load Regulation vs. Temperature
1.275
3.70
V
SET WITH 1% RESISTORS
1.270
1.265
1.260
1.255
1.250
1.245
1.240
1.235
1.230
1.225
OUT
= 3.6V1
3.65
3.60
3.55
3.50
3.45
3.40
3.35
3.30
3.25
3.20
V
OUT
V
= 3.3V2
OUT
Note:
1. RC1587 Only
2. RC1587, -3.3
-75 -50 -25
0
25 50 75 100 125 150 175
-75 -50 -25
0
25 50 75 100 125 150 175
JUNCTION TEMPERATURE (°C)
JUNCTION TEMPERATURE (°C)
Figure 3. Reference Voltage vs. Temperature
Figure 4. Output Voltage vs. Temperature
5
4
3
2
1
0
100
Note:
1. RC1587 Only
90
80
70
60
50
40
30
20
10
0
-75 -50 -25
0
25 50 75 100 125 150 175
-75 -50 -25
0
25 50 75 100 125 150 175
JUNCTION TEMPERATURE (°C)
JUNCTION TEMPERATURE (°C)
Figure 5. Minimum Load Current vs. Temperature
Figure 6. Adjust Pin Current vs. Temperature
4
REV. 1.5
PRODUCT SPECIFICATION
RC1587
Typical Performance Characteristics (continued)
90
5.0
4.5
4.0
3.5
3.0
80
70
60
50
40
30
20
10
0
(V – V
IN
) ≤ 3V
OUT
0.5V ≤ V
≤ 2V
RIPPLE
= 3A
I
OUT
-75 -50 -25
0
25 50 75 100 125 150 175
10
100
1K
FREQUENCY (Hz)
10K
100K
JUNCTION TEMPERATURE (°C)
Figure 7. Short-Circuit Current vs. Temperature
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
REV. 1.5
5
RC1587
PRODUCT SPECIFICATION
Applications Information
General
D1
1N4002
(OPTIONAL)
The RC1587, RC1587-1.5, and RC1587-3.3 are three-terminal
regulators optimized for GTL+ V termination applications.
TT
These devices are short-circuit protected, and offer thermal
shutdown to turn off the regulator when the junction temper-
ature exceeds about 150°C. The RC1587 series provides low
dropout voltage and fast transient response. Frequency com-
pensation uses capacitors with low ESR while still maintain-
ing stability. This is critical in addressing the needs of low
voltage high speed microprocessor buses like GTL+.
RC1587
V
V
IN
OUT
IN
OUT
+
+
C1
10µF
C2
R1
ADJ
+
22µF
C
ADJ
R2
Stability
The RC1587 series require an output capacitor as a part of
the frequency compensation. It is recommended to use a
22µF solid tantalum or a 100µF aluminum electrolytic on the
output to ensure stability. The frequency compensation of
these devices optimizes the frequency response with low
ESR capacitors. In general, it is suggested to use capacitors
with an ESR of <300mΩ. It is also recommended to use
bypass capacitors such as a 22µF tantalum or a 100µF alumi-
num on the adjust pin of the RC1587 for low ripple and fast
transient response. When these bypassing capacitors are not
used at the adjust pin, larger values of output capacitors pro-
vide equally good results.
D1
1N4002
(OPTIONAL)
RC1587-1.5, -3.3
V
V
IN
OUT
IN
OUT
+
+
C1
10µF
C2
22µF
GND
65-1587-13
Figure 10. Optional Protection
Protection Diodes
Ripple Rejection
In normal operation, the RC1587 series does not require any
protection diodes. For the RC1587, internal resistors limit
internal current paths on the adjust pin. Therefore, even with
bypass capacitors on the adjust pin, no protection diode is
needed to ensure device safety under shortcircuit conditions.
In applications that require improved ripple rejection, a
bypass capacitor from the adjust pin of the RC1587 to
ground reduces the output ripple by the ratio of V
/1.25V.
OUT
The impedance of the adjust pin capacitor at the ripple fre-
quency should be less than the value of R1 (typically in the
range of 100Ω to 120Ω) in the feedback divider network in
Figure 10. Therefore, the value of the required adjust pin
capacitor is a function of the input ripple frequency. For
example, if R1 equals 100Ω and the ripple frequency equals
120Hz, the adjust pin capacitor should be 22µF. At 10kHz,
only 0.22µF is needed.
A protection diode between the input and output pins is usu-
ally not needed. An internal diode between the input and out-
put pins on the RC1587 series can handle microsecond surge
currents of 50A to 100A. Even with large value output
capacitors it is difficult to obtain those values of surge cur-
rents in normal operation. Only with large values of output
capacitance, such as 1000µF to 5000µF, and with the input
pin instantaneously shorted to ground can damage occur. A
crowbar circuit at the input can generate those levels of cur-
rent; a diode from output to input is then recommended, as
shown in Figure 10. Usually, normal power supply cycling or
system “hot plugging and unplugging” will not generate cur-
rent large enough to do any damage.
Output Voltage
The RC1587 regulator develops a 1.25V reference voltage
between the output pin and the adjust pin (see Figure 11).
Placing a resistor R1 between these two terminals causes a
constant current to flow through R1 and down through R2 to
set the overall output voltage. Normally, this current is the
specified minimum load current of 10mA.
The adjust pin can be driven on a transient basis ±7V with
respect to the output, without any device degradation. As
with any IC regulator, exceeding the maximum input-to-
output voltage differential causes the internal transistors to
break down and none of the protection circuitry is then
functional.
The current out of the adjust pin adds to the current from R1
and is typically 35µA. Its output voltage contribution is
small and only needs consideration when very precise output
voltage setting is required.
6
REV. 1.5
PRODUCT SPECIFICATION
RC1587
R
P
RC1587
OUT
PARASITIC
LINE RESISTANCE
RC1587
OUT
V
V
OUT
IN
IN
+
+
V
C1
10µF
C2
22µF
IN
IN
V
ADJ
R1
R2
REF
ADJ
I
ADJ
35µA
R1*
R2*
R
L
65-1587-14
V
= V
(1 + R2/R1) + I
REF ADJ
(R2)
OUT
*CONNECT R1 TO CASE
CONNECT R2 TO LOAD
Figure 11. Basic Regulator Circuit
Load Regulation
65-1587-15
It is not possible to provide true remote load sensing because
the RC1587 series are three-terminal devices. Load regula-
tion is limited by the resistance of the wire connecting the
regulators to the load. Load regulation per the data sheet
specification is measured at the bottom of the package.
Figure 13. Connection for Best Load Regulation
Thermal Considerations
The RC1587 series protect themselves under overload condi-
tions with internal power and thermal limiting circuitry.
However, for normal continuous load conditions, do not
exceed maximum junction temperature ratings. It is impor-
tant to consider all sources of thermal resistance from junc-
tion-to-ambient. These sources include the junction-to-case
resistance, the case-to-heat sink interface resistance, and the
heat sink resistance. Thermal resistance specifications have
been developed to more accurately reflect device tempera-
ture and ensure safe operating temperatures.
For fixed voltage devices, negative side sensing is a true
Kelvin connection with the ground pin of the device returned
to the negative side of the load. This is illustrated in
Figure 12.
R
P
PARASITIC
LINE RESISTANCE
RC1587-1.5, -3.3
IN OUT
V
IN
GND
R
L
For example, look at using an RC1587T to generate 3A @
1.5V ± 2% from a 3.3V source (3.2V to 3.6V).
Assumptions:
65-1587-17
Figure 12. Connection for Best Load Regulation
• V = 3.6V worst case
IN
• V
• I
OUT
= 1.46V worst case
= 3A continuous
OUT
For adjustable voltage devices, negative side sensing is a true
Kelvin connection with the bottom of the output divider
returned to the negative side of the load. The best load regu-
lation is obtained when the top of resistor divider R1 con-
nects directly to the regulator output and not to the load.
Figure 13 illustrates this point.
• T = 70°C
A
• θ
= 3°C/W (assuming both a heatsink and
Case-to-Ambient
a thermally conductive material)
The power dissipation in this application is:
P
= (V – V
) * (I ) = (3.6 – 1.46) * (3) = 6.42W
OUT
D
IN OUT
If R1 connects to the load, then the effective resistance
between the regulator and the load would be:
From the specification table:
R × (1 + R2/R1), R = Parasitic Line Resistance
P
P
T = T + (P ) * (θ
+ θ )
JC
J
A
D
Case-to-Ambient
= 70 + (6.42) * (3 + 3) = 109°C
The connection shown in Figure 13 does not multiply R by
P
the divider ratio. As an example, R is about four milliohms
P
The junction temperature is below the maximum rating.
per foot with 16-gauge wire. This translates to 4mV per foot
at 1A load current. At higher load currents, this drop repre-
sents a significant percentage of the overall regulation. It is
important to keep the positive lead between the regulator and
the load as short as possible and to use large wire or PC
board traces.
REV. 1.5
7
RC1587
PRODUCT SPECIFICATION
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 the package to
the heat sink. Use of a thermally conductive material at the
case-to-heat sink interface is recommended. Use a thermally
conductive spacer if the case of the device must be electri-
cally isolated and include its contribution to the total thermal
resistance. The cases of the RC1587 series are directly con-
nected to the output of the device.
U1
RC1587
V
3.3V
V
1.5V
IN
OUT
V
V
OUT
IN
R1
124Ω
+
+
ADJ
+
C1
10µF
C3
100µF
R2
24.9Ω
C2
100µF
65-1587-18
Figure 14. Application Circuit (RC1587)
Table 1. Bill of Materials for Application Circuit for the RC1587
Item
C1
Quantity
Manufacturer
Xicon
Part Number
L10V10
Description
1
2
1
1
1
10µF, 10V Aluminum
100µF, 10V Aluminum
124Ω, 1%
C2, C3
R1
Xicon
L10V100
Generic
Generic
Fairchild
R2
24.9Ω, 1%
U1
RC1587T
3A Regulator
U1
RC1587-1.5
V
V
OUT
1.5V
IN
V
V
OUT
IN
3.3V
+
+
GND
C1
C3
10µF
100µF
65-1587-19
Figure 15. Application Circuit (RC1587-1.5)
Table 2. Bill of Materials for Application Circuit for the RC1587-1.5
Item
C1
Quantity
Manufacturer
Xicon
Part Number
L10V10
Description
1
1
1
10µF, 10V Aluminum
100µF, 10V Aluminum
3A Regulator
C3
Xicon
L10V100
U1
Fairchild
RC1587T-1.5
8
REV. 1.5
PRODUCT SPECIFICATION
RC1587
U1
RC1587-3.3
V
IN
3.3V
V
OUT
3.3V
V
V
OUT
IN
+
+
GND
C1
C3
10µF
100µF
65-1587-20
Figure 16. Application Circuit (RC1587-3.3)
Table 3. Bill of Materials for Application Circuit for the RC1587-1.5
Item
C1
Quantity
Manufacturer
Xicon
Part Number
L10V10
Description
1
1
1
10µF, 10V Aluminum
100µF, 10V Aluminum
3A Regulator
C3
Xicon
L10V100
U1
Fairchild
RC1587T-3.3
REV. 1.5
9
RC1587
PRODUCT SPECIFICATION
Mechanical Dimensions
3-Lead TO-263 Package
Notes:
Inches
Millimeters
1. Dimensions are exclusive of mold flash and metal burrs.
2. Standoff-height is measured from lead tip with ref. to Datum -B-.
3. Foot length is measured with ref. to Datum -A- with lead surface
(at inner R).
4. Dimensiuon exclusive of dambar protrusion or intrusion.
5. Formed leads to be planar with respect to one another at seating
place -C-.
Symbol
Notes
Min.
Max.
Min.
Max.
A
.160
.020
.049
.045
.340
.380
.190
.036
.051
.055
.380
.405
4.06
0.51
1.25
1.14
8.64
9.65
4.83
0.91
1.30
1.40
9.65
10.29
b
b2
c2
D
E
e
.100 BSC
2.54 BSC
L
.575
.090
—
.017
0°
.625
14.61
2.29
—
0.43
0°
15.88
2.79
1.40
0.78
8°
L1
L2
R
.110
.055
.019
8°
α
E
@PKG/
@HEATSINK
L2
c2
D
E-PIN
L
R (2 PLCS)
b2
L1
b
e
-B- -A-
A
-C-
10
REV. 1.5
PRODUCT SPECIFICATION
RC1587
Mechanical Dimensions (continued)
3-Lead TO-263 Center Cut Package
Notes:
Inches
Millimeters
1. Dimensions are exclusive of mold flash and metal burrs.
Symbol
Notes
2. Standoff-height is measured from lead tip with ref. to Datum -B-.
3. Foot length is measured with ref. to Datum -A- with lead surface
(at inner R).
4. Dimensiuon exclusive of dambar protrusion or intrusion.
5. Formed leads to be planar with respect to one another at seating
place -C-.
Min.
Max.
Min.
Max.
A
.160
.020
.049
.045
.340
.380
.190
.036
.051
.055
.380
.405
4.06
0.51
1.25
1.14
8.64
9.65
4.83
0.91
1.30
1.40
9.65
10.29
b
b2
c2
D
E
e
.100 BSC
2.54 BSC
L
.575
.625
.110
.055
14.61
15.88
L1
L2
.090
—
2.29
—
2.79
1.40
1.78
0.78
8°
L3
R
.050
.017
0°
1.27
0.43
0°
.070
.019
8°
α
E
@PKG/
@HEATSINK
L2
c2
D
E-PIN
L
R (2 PLCS)
b2
L1
L3
b
e
-B- -A-
A
-C-
REV. 1.5
11
RC1587
PRODUCT SPECIFICATION
Mechanical Dimensions (continued)
3-Lead TO-220 Package
Inches
Millimeters
Symbol
Notes
Min.
Max.
Min.
Max.
A
.140
.015
.045
.014
.139
.560
.380
.090
.190
.045
.190
.040
3.56
.38
4.83
1.02
b
b1
c1
øP
D
1.14
.36
.070
.022
.161
1.78
.56
3.53
14.22
9.65
2.29
4.83
1.14
4.09
.650
.420
.110
.210
—
16.51
10.67
2.79
5.33
—
E
e
e1
e3
F
.020
.230
.080
.055
.270
.115
.51
1.40
6.87
2.92
H1
J1
L
5.94
2.04
.500
.580
12.70
14.73
L1
Q
α
.250 BSC
6.35 BSC
.100
.135
2.54
3.43
Notes:
3°
7°
3°
7°
1. Dimension c1 apply for lead finish.
H1
Q
L
b1
e3
e
e1
E
b
L1
E-PIN
øP
α (5X)
c1
A
J1
F
D
12
REV. 1.5
PRODUCT SPECIFICATION
RC1587
Mechanical Dimensions (continued)
3-Lead TO-252 Package
Notes:
Inches
Millimeters
Symbol
Notes
1. Dimensions are exclusive of mold flash and metal burrs.
Min.
Max.
Min.
Max.
2. Stand off-height is measured from lead tip with ref. to Datum -B-.
A
.086
.025
.030
.018
.210
.250
.094
.035
2.19
0.64
0.76
0.76
5.33
6.35
2.38
0.88
3. Foot length is measured with ref. to Datum -A- with lead surface
(at inner R).
b
b2
c2
D
E
.045
.023
.231
1.17
0.58
5.88
4. Dimension exclusive of dambar protrusion or intrusion.
5. Formed leads to be planar with respect to one another at seating
place -C-.
.265
6.73
e
.090 BSC
2.285 BSC
L
.370
.020
.055
.410
—
9.40
0.51
1.40
10.72
—
L1
L2
.080
2.03
R
.018
.023
0.46
0.58
α
0°
8°
0°
8°
E
@PKG/
@HEATSINK
L2
c2
D
E-PIN
L
R (2 PLCS)
b2
L1
b
e
-B- -A-
A
-C-
REV. 1.5
13
RC1587
PRODUCT SPECIFICATION
Ordering Information
Product Number
RC1587M
Package
TO-263
RC1587MC
TO-263 center cut
TO-220
RC1587T
RC1587D
TO-252
RC1587M-1.5
RC1587MC-1.5
RC1587T-1.5
RC1587D-1.5
RC1587M-3.3
RC1587MC-3.3
RC1587T-3.3
RC1587D-3.3
TO-263
TO-263 center cut
TO-220
TO-252
TO-263
TO-263 center cut
TO-220
TO-252
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. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body, or
(b) support or sustain life, and (c) whose failure to perform
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to
result in a significant injury of the user.
2. A critical component in any component of a life support de-
vice or system whose failure to perform can be reasonably
expected to cause the failure of the life support device or
system, or to affect its safety or effectiveness.
www.fairchildsemi.com
1/12/01 0.0m 001
Stock#DS30001587
1998 Fairchild Semiconductor Corporation
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