Datasheet LD1585CD2T90, LD1585CD2T80, LD1585CD2T50, LD1585CD2T33, LD1585CD2T28 Datasheet (SGS Thomson Microelectronics)

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Page 1
1/17September 2003
TYPICAL DROPOUT 1.2V
FAST TRANSIENT RESPONSE
THREE TERMINAL ADJUSTABLE OR FIXED
OUTPUT VOLTAGE 1.5V 1.8V, 2.5V, 2.85V,
3.3V, 5V, 8V, 9V, 12V.
GUARANTEED OUTPUT CURRENT UP TO
OUPUT TOLERANCE ±1% AT 25°C AND
±2% IN FU LL TEMPERATURE RANGE
INTERNAL P OWER AND THERMAL LIMIT
WIDE OPERATING TEMPERATURE RANGE
0°C TO 125°C
PACKAGE AVAILABLE : TO-220, D
2
PAK,
D
2
PAK/A
PINOUT COMPATIBILITY WITH STANDARD
ADJUSTABLE VREG
DESCRIPTION
The LD1585C is a LOW DROP Voltage Regulator able to provide up to 5A of Output Current. Dropout is guaranteed at a maximum of 1.4V at the maximum output current, decreas ing at lower loads. The device h as been i mproved to be utilized in low voltage applications where transient response and minimum input voltage are critical. The most important feature of the device con sist i n lower dropout voltage and very f as t transient
response. A 2.85V output version is suitable for SCSI-2 active terminat ion. Unlike PNP regul ato rs, where a pa rt of the output current is wasted as quiescent current, the LD1585C quiescent current flows into the load, so increase efficiency. Only a 10µF minimum capacitor is n eed for stability. The device is supplied in TO-220, D
2
PAK and
D
2
PAK/A. On chi p t rim ming allows the regulator to reach a very tight output voltage tolera nc e, within ±1% at 25°C.
LD1585C
SERIES
5A LOW DROPOUT FAST RESPONSE
POSITIVE VOLTAGE REGULATOR ADJUSTABLE AND FIXED
SCHEMATIC DIAGRAM
TO-220
D2PAK D2PAK/A
Page 2
LD1585C SERIES
2/17
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
THERMAL DATA
APPLICATION CIRCUITS
Symbol Parameter² Value Unit
V
I
DC Input Voltage
30 V
I
O
Output Current
Internally Limited mA
P
D
Power Dissipation
Internally Limited mW
T
stg
Storage Temperature Range
-55 to +150 °C
T
op
Operating Junction Temperature Range
0 to +125 °C
Symbol Parameter TO-220
D
2
PAK
Unit
R
thj-case
Thermal Resistance Junction-case
3 3 °C/W
R
thj-amb
Thermal Resistance Junction-ambient
50 62.5 °C/W
R
2
VO=V
REF
(1 + )
R
1
Page 3
LD1585C SERIES
3/17
CONNECTION DIAGRAM (top view)
ORDERING CODES
(*) Available in Tape & Reel with the suffix "R" for fixed version and "-R" for adjustable version.
TO-220
D
2
PAK D2PAK/A
TO-220
D
2
PAK (*) D2PAK/A (*)
OUTPUT VOLTAGE
LD1585CV15 LD1585CD2T15 LD1585CD2M15 1.5 V LD1585CV18 LD1585CD2T18 LD1585CD2M18 1.8 V LD1585CV25 LD1585CD2T25 LD1585CD2M25 2.5 V LD1585CV28 LD1585CD2T28 LD1585CD2M28 2.85 V LD1585CV33 LD1585CD2T33 LD1585CD2M33 3.3 V LD1585CV50 LD1585CD2T50 LD1585CD2M50 5.0 V LD1585CV80 LD1585CD2T80 LD1585CD2M80 8.0 V LD1585CV90 LD1585CD2T90 LD1585CD2M90 9.0 V LD1585CV12 LD1585CD2T120 LD1585CD2M120 12.0 V
LD1585CV LD1585CD2T LD1585CD2M ADJ
Page 4
LD1585C SERIES
4/17
ELECTRICAL CHARACTERISTICS OF LD158 5#15 (VI=4.5V, CI=CO=10µF, TJ= 0 to 125°C, unless otherwise specified.)
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
ELECTRICAL CHARACTERISTICS OF LD158 5#18 (VI=4.8V, CI=CO=10µF, TJ= 0 to 125°C, unless otherwise specified.)
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
Output Voltage IO=0mA TJ= 25°C 1.485 1.5 1.515 V
I
O
=0to5A VI= 3 to 25V (note 1) 1.47 1.5 1.53 V
V
O
Line Regulation IO=0mA VI=3to15V TJ= 25°C 0.005 0.2 %
I
O
=0mA VI= 3 to 15V 0.005 0.2 %
V
O
Load Regulation IO=0to5A TJ= 25°C 0.05 0.3 %
I
O
= 0 to 5A 0.05 0.5 %
V
d
Dropout Voltage IO=5 A 1.2 1.4 V
I
q
Quiescent Current VI≤ 25V 5 10 mA
I
sc
Short Circuit Current VI-VO= 5V 5.5 7 A Termal Regulation T
J
= 25°C, 30ms pulse 0.004 0.02 %/W
SVR Supply Voltage Rejection f = 120 Hz, C
O
=25µF, IO=5A
V
I-VO
=3± 1V
60 75 dB
eN RMS Output Noise Voltage
(% of V
O
)
T
J
= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 % S Long Term Stability T
J
= 125°C 1000Hrs 0.03 1 %
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
Output Voltage IO=0mA TJ= 25°C 1.782 1.8 1.818 V
I
O
=0to5A VI= 3.3 to 25V (note 1) 1.764 1.8 1.836 V
V
O
Line Regulation IO=0mA VI= 3.3 to 15V TJ= 25°C 0.005 0.2 mV
I
O
=0mA VI= 3.3 to 15V 0.005 0.2
V
O
Load Regulation IO=0to5A TJ= 25°C 0.05 0.3 mV
I
O
= 0 to 5A 0.05 0.5
V
d
Dropout Voltage IO=5 A 1.2 1.4 V
I
q
Quiescent Current VI≤ 25V 5 10 mA
I
sc
Short Circuit Current VI-VO= 5.5V 5.5 7 A Termal Regulation T
J
= 25°C, 30ms pulse 0.004 0.02 %/W
SVR Supply Voltage Rejection f = 120 Hz, C
O
=25µF, IO=5A
V
I-VO
=3± 1V
60 75 dB
eN RMS Output Noise Voltage
(% of V
O
)
T
J
= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 % S Long Term Stability T
J
= 125°C 1000Hrs 0.03 1 %
Page 5
LD1585C SERIES
5/17
ELECTRICAL CHARACTERISTICS OF LD158 5#25 (VI=5.5V, CI=CO=10µF, TJ= 0 to 125°C, unless otherwise specified.)
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
ELECTRICAL CHARACTERI S TICS OF LD1585#285 (VI=5.85V, CI=CO=10µF,TJ= 0 to 125°C, unles s otherwise specified.)
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
Output Voltage IO=0mA TJ= 25°C 2.475 2.5 2.525 V
I
O
=0to5A VI= 4 to 25V (note 1) 2.45 2.5 2.55 V
V
O
Line Regulation IO=0mA VI=4to16V TJ= 25°C 0.005 0.2 mV
I
O
=0mA VI= 4 to 16V 0.005 0.2
V
O
Load Regulation IO=0to5A TJ= 25°C 0.05 0.3 mV
I
O
= 0 to 5A 0.05 0.5
V
d
Dropout Voltage IO=5 A 1.2 1.4 V
I
q
Quiescent Current VI≤ 25V 5 10 mA
I
sc
Short Circuit Current VI-VO= 5.5V 5.5 7 A Termal Regulation T
J
= 25°C, 30ms pulse 0.004 0.02 %/W
SVR Supply Voltage Rejection f = 120 Hz, C
O
=25µF, IO=5A
V
I-VO
=3± 1V
60 75 dB
eN RMS Output Noise Voltage
(% of V
O
)
T
J
= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 % S Long Term Stability T
J
= 125°C 1000Hrs 0.03 1 %
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
Output Voltage IO=0mA TJ= 25°C 2.821 2.85 2.879 V
I
O
=0to5A VI= 4.5 to 30V (note 1) 2.793 2.85 2.907 V
V
O
Line Regulation IO=0mA VI= 4.5 to 18V TJ= 25°C 0.005 0.2 mV
I
O
=0mA VI= 4.5 to 18V 0.005 0.2
V
O
Load Regulation IO=0to5A TJ= 25°C 0.05 0.3 mV
I
O
= 0 to 5A 0.05 0.5
V
d
Dropout Voltage IO=5 A 1.2 1.4 V
I
q
Quiescent Current VI≤ 25V 5 10 mA
I
sc
Short Circuit Current VI-VO= 5.5V 5.5 7 A Termal Regulation T
J
= 25°C, 30ms pulse 0.004 0.02 %/W
SVR Supply Voltage Rejection f = 120 Hz, C
O
=25µF, IO=5A
V
I-VO
=3± 1V
60 75 dB
eN RMS Output Noise Voltage
(% of V
O
)
T
J
= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 % S Long Term Stability T
J
= 125°C 1000Hrs 0.03 1 %
Page 6
LD1585C SERIES
6/17
ELECTRICAL CHARACTERISTICS OF LD158 5#33 (VI=6.3V, CI=CO=10µF, TJ= 0 to 125°C, unless otherwise specified.)
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
ELECTRICAL CHARACTERISTICS OF LD158 5#50 (VI=8V, CI=CO=10µF, TJ= 0 to 125°C, unless otherwise specified.)
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
Output Voltage IO=0mA TJ= 25°C 3.267 3.3 3.333 V
I
O
=0to5A VI= 4.8 to 25V (note 1) 3.234 3.35 3.366 V
V
O
Line Regulation IO=0mA VI= 4.8 to 18V TJ= 25°C 0.005 0.2 mV
I
O
=0mA VI= 4.9 to 18V 0.005 0.2
V
O
Load Regulation IO=0to5A TJ= 25°C 0.05 0.3 mV
I
O
= 0 to 5A 0.05 0.5
V
d
Dropout Voltage IO=5 A 1.2 1.4 V
I
q
Quiescent Current VI≤ 25V 5 10 mA
I
sc
Short Circuit Current VI-VO= 5.5V 5.5 7 A Termal Regulation T
J
= 25°C, 30ms pulse 0.004 0.02 %/W
SVR Supply Voltage Rejection f = 120 Hz, C
O
=25µF, IO=5A
V
I-VO
=3± 1V
60 75 dB
eN RMS Output Noise Voltage
(% of V
O
)
T
J
= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 % S Long Term Stability T
J
= 125°C 1000Hrs 0.03 1 %
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
Output Voltage IO=0mA TJ= 25°C 4.95 5 5.05 V
I
O
=0to5A VI= 6.5 to 30V (note 1) 4.9 5 5.1 V
V
O
Line Regulation IO=0mA VI= 6.5 to 20V TJ= 25°C 0.005 0.2 mV
I
O
=0mA VI= 6.5 to 20V 0.005 0.2
V
O
Load Regulation IO=0to5A TJ= 25°C 0.05 0.3 mV
I
O
= 0 to 5A 0.05 0.5
V
d
Dropout Voltage IO=5 A 1.2 1.4 V
I
q
Quiescent Current VI≤ 25V 5 10 mA
I
sc
Short Circuit Current VI-VO= 5.5V 5.5 7 A Termal Regulation T
J
= 25°C, 30ms pulse 0.004 0.02 %/W
SVR Supply Voltage Rejection f = 120 Hz, C
O
=25µF, IO=5A
V
I-VO
=3± 1V
60 75 dB
eN RMS Output Noise Voltage
(% of V
O
)
T
J
= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 % S Long Term Stability T
J
= 125°C 1000Hrs 0.03 1 %
Page 7
LD1585C SERIES
7/17
ELECTRICAL CHARACTERISTICS OF LD158 5#80 (VI=11V, CI=CO=10µF, TJ= 0 to 125°C, unless otherwise specified.)
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
ELECTRICAL CHARACTERISTICS OF LD158 5#90 (VI=12V, CI=CO=10µF, TJ= 0 to 125°C, unless otherwise specified.)
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
Output Voltage IO=0mA TJ= 25°C 7.92 8 8.08 V
I
O
=0to5A VI= 9.5 to 30V (note 1) 7.84 8 8.16 V
V
O
Line Regulation IO=0mA VI= 9.5 to 20V TJ= 25°C 0.005 0.2 mV
I
O
=0mA VI= 9.5 to 20V 0.005 0.2
V
O
Load Regulation IO=0to5A TJ= 25°C 0.05 0.3 mV
I
O
= 0 to 5A 0.05 0.5
V
d
Dropout Voltage IO=5 A 1.2 1.4 V
I
q
Quiescent Current VI≤ 25V 5 10 mA
I
sc
Short Circuit Current VI-VO= 5.5V 5.5 7 A Termal Regulation T
J
= 25°C, 30ms pulse 0.004 0.02 %/W
SVR Supply Voltage Rejection f = 120 Hz, C
O
=25µF, IO=5A
V
I-VO
=3± 1V
60 75 dB
eN RMS Output Noise Voltage
(% of V
O
)
T
J
= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 % S Long Term Stability T
J
= 125°C 1000Hrs 0.03 1 %
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
Output Voltage IO=0mA TJ= 25°C 8.91 9 9.09 V
I
O
=0to5A VI= 10.5 to 30V (note 1) 8.82 9 9.18 V
V
O
Line Regulation IO=0mA VI=10.5to20V TJ= 25°C 0.005 0.2 mV
I
O
=0mA VI= 10.5 to 20V 0.005 0.2
V
O
Load Regulation IO=0to5A TJ= 25°C 0.05 0.3 mV
I
O
= 0 to 5A 0.05 0.5
V
d
Dropout Voltage IO=5 A 1.2 1.4 V
I
q
Quiescent Current VI≤ 25V 5 10 mA
I
sc
Short Circuit Current VI-VO= 5.5V 5.5 7 A Termal Regulation T
J
= 25°C, 30ms pulse 0.004 0.02 %/W
SVR Supply Voltage Rejection f = 120 Hz, C
O
=25µF, IO=5A
V
I-VO
=3± 1V
60 75 dB
eN RMS Output Noise Voltage
(% of V
O
)
T
J
= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 % S Long Term Stability T
J
= 125°C 1000Hrs 0.03 1 %
Page 8
LD1585C SERIES
8/17
ELECTRICAL CHARACTERISTICS OF LD158 5#120 (VI=15V, CI=CO=10µF, TJ= 0 to 125°C, unless otherwise specified.)
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
ELECTRICAL CHARACTERISTICS OF LD1585# (VI=4.25V, CI=CO=10µF, TJ= 0 to 125°C, unless otherwise specified.)
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
Output Voltage IO=0mA TJ= 25°C 11.88 12 12.12 V
I
O
=0to5A VI= 13.5 to 30V (note 1) 11.76 12 12.24 V
V
O
Line Regulation IO=0mA VI=13.5to25V TJ= 25°C 0.005 0.2 mV
I
O
=0mA VI= 13.5 to 25V 0.005 0.2
V
O
Load Regulation IO=0to5A TJ= 25°C 0.05 0.3 mV
I
O
= 0 to 5A 0.05 0.5
V
d
Dropout Voltage IO=5 A 1.2 1.4 V
I
q
Quiescent Current VI≤ 25V 5 10 mA
I
sc
Short Circuit Current VI-VO= 5.5V 5.5 7 A Termal Regulation T
J
= 25°C, 30ms pulse 0.004 0.02 %/W
SVR Supply Voltage Rejection f = 120 Hz, C
O
=25µF, IO=5A
V
I-VO
=3± 1V
60 75 dB
eN RMS Output Noise Voltage
(% of V
O
)
T
J
= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 % S Long Term Stability T
J
= 125°C 1000Hrs 0.03 1 %
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
Output Voltage IO= 10mA VI-VO=3V TJ= 25°C 1.237 1.25 1.263 V
I
O
= 10mA to 5AVI-VO=1.5 to 25V
(note 1)
1.225 1.25 1.275 V
V
O
Line Regulation IO= 10mA VI= 2.75 to 15V TJ= 25°C 0.015 0.2 %
I
O
= 10mA VI= 2.75 to 15V 0.1 0.2 %
V
O
Load Regulation IO= 10mA to 5ATJ= 25°C 0.1 0.3 %
I
O
= 0 to 5A 0.25 0.5 %
V
d
Dropout Voltage IO= 5A 1.2 1.4 V
I
O(min)
Minimum Load Current VI= 25V 3 10 mA
I
sc
Short Circuit Current VI-VO= 5.5V 5.5 7 A Termal Regulation T
J
= 25°C, 30ms pulse 0.004 0.02 %/W
SVR Supply Voltage Rejection f = 120 Hz, C
O
=25µF, C
ADJ
=25µF,
I
O
=5A VI-VO=3± 1V
60 75 dB
I
ADJ
Adjust Pin Current IO=10mA 50 100 µA
I
ADJ
Adjust Pin Current Change IO= 10mA to 5A VI= 3 to 25V (note 1) 0.2 5 µA
eN RMS Output Noise Voltage
(% of V
O
)
T
J
= 25°C f =10Hz to 10KHz 0.003 %
S Temperature Stability 0.5 % S Long Term Stability T
J
= 125°C 1000Hrs 0.5 %
Page 9
LD1585C SERIES
9/17
TYPICAL CHARACTERISTICS
(unless otherwise specified Tj= 25°C, CI=CO=10µFtant)
Figure1 : O utput Voltage vs Temperature
Figure2 : Short Circuit Current vs Dropout
Voltage
Figure3 : Line Regulation vs Temperature
Figure4 : Line Regulation vs Temperature
Figure5 : Load Regula tion vs Temperature
Figure6 : Load Regula tion vs Temperature
Page 10
LD1585C SERIES
10/17
Figure7 : Dropout Voltage vs Temperature
Figure8 : Dropout Voltage vs Output Current
Figure9 : Adjust Pin Current vs I nput Voltage
Figure10 : Adjust Pin Current vs Temperature
Figure11 : Adjust Pin Current Change vs
Temperature
Figure12 : Quiescent Current vs Temperature
Page 11
LD1585C SERIES
11/17
Figure13 : Reference Voltage vs Temperature
Figure14 : Minimum Load Current vs
Temperature
Figure15 : Supply Voltage Rejection vs Output Current
Figure16 : Supply Voltage Rejection vs Output Current
Figure17 : Supply Voltage Rejection vs Frequency
Figure18 : Supply Voltage Rejection vs Frequency
Page 12
LD1585C SERIES
12/17
Figure19 : Supply Voltage Rejection vs Temperature
Figure20 : Supply Voltage Rejection vs Temperature
Figure21 : Line Transient
Figure22 : Load Transient
Figure23 : Load Transient
V
I
=
15 to16V,I
O
=
200mA,C
I
=1µ
F(tant),C
O
=10µ
F(tant)
,
V
I
=15V,
I
O
=0.1to 5A,
C
I
=10µF(tant),
C
O
=10µF(tant
)
V
I
=7V,
I
O
=0.1to5A,
C
I
=10µ
F(tant),C
O
=10µ
F(tant)
Page 13
LD1585C SERIES
13/17
DIM.
mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
A 4.40 4.60 0.173 0.181 C 1.23 1.32 0.048 0.051 D 2.40 2.72 0.094 0.107
D1 1.27 0.050
E 0.49 0.70 0.019 0.027
F 0.61 0.88 0.024 0.034 F1 1.14 1.70 0.044 0.067 F2 1.14 1.70 0.044 0.067
G 4.95 5.15 0.194 0.203 G1 2.4 2.7 0.094 0.106 H2 10.0 10.40 0.393 0.409
L2 16.4 0.645 L4 13.0 14.0 0.511 0.551 L5 2.65 2.95 0.104 0.116 L6 15.25 15.75 0.600 0.620 L7 6.2 6.6 0.244 0.260 L9 3.5 3.93 0.137 0.154
DIA. 3.75 3.85 0.147 0.151
TO-220 MECHANICAL DAT
A
P011C
Page 14
LD1585C SERIES
14/17
DIM.
mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
A 4.4 4.6 0.173 0.181 A1 2.49 2.69 0.098 0.106 A2 0.03 0.23 0.001 0.009
B 0.7 0.93 0.027 0.036 B2 1.14 1.7 0.044 0.067
C 0.45 0.6 0.017 0.023 C2 1.23 1.36 0.048 0.053
D 8.95 9.35 0.352 0.368 D1 8 0.315
E 10 10.4 0.393 0.409 E1 8.5 0.335
G 4.88 5.28 0.192 0.208
L 15 15.85 0.590 0.624 L2 1.27 1.4 0.050 0.055 L3 1.4 1.75 0.055 0.068
M 2.4 3.2 0.094 0.126 R 0.4 0.016
V2
D2PAK MEC
HANICAL DATA
P011P6G
Page 15
LD1585C SERIES
15/17
DIM.
mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
A 4.40 4.60 0.173 0.181
A1 2.49 2.69 0.098 0.106
B 0.7 0.93 0.027 0.036
B2 1.14 1.7 0.044 0.067
C 0.45 0.60 0.017 0.023
C2 1.21 1.36 0.047 0.053
D 8.95 9.35 0.352 0.368
E 10 10.4 0.393 0.409
G 4.88 5.28 0.192 0.208
L 15 15.85 0.590 0.106
L2 1.27 1.4 0.050 0.055
D2PAK/A MECHA
NICAL DATA
Page 16
LD1585C SERIES
16/17
DIM.
mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
A 180 7.086 C 12.8 13.0 13.2 0.504 0.512 0.519 D 20.2 0.795 N 60 2.362
T 14.4 0.567 Ao 10.50 10.6 10.70 0.413 0.417 0.421 Bo 15.70 15.80 15.90 0.618 0.622 0.626 Ko 4.80 4.90 5.00 0.189 0.193 0.197 Po 3.9 4.0 4.1 0.153 0.157 0.161
P 11.9 12.0 12.1 0.468 0.472 0.476
Tape & Reel D
2
PAK-P2PAK-D2PAK/A-P2PAK/A MECHANICAL DATA
Page 17
LD1585C SERIES
17/17
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