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LD1580
7 A VERY LOW DROP POSITIVE VOLTAGE REGULATOR ADJUSTABLE AND FIXED
PRELIMINARY DATA
s s
s s s
s
s
s
OUTPUT CURRENT LIMIT LOW DROPOUT VOLTAGE: TYPICALLY 400mV AT 7A OUTPUT CURRENT OUTPUT VOLTAGE REMOTE SENSE PIN FAST TRANSIENT RESPONSE THERMAL SHUTDOWN PROTECTION WITH HYSTERESIS WIDE OPERATING TEMPERATURE RANGE -40C TO 125C NO SUPPLY SEQUENCING PROBLEMS IN DUAL SUPPLY MODE OUTPUT VOLTAGES AVAILABLE 1.5 V, 1.8V, 2.5 V, 3.0 V, 3.3 V ADJUSTABLE.
HEPTAWATTTM
PENTAWATTTM
5 1
DESCRIPTION The LD1580 is a very low dropout positive linear voltage regulator particularly suitable in applications requiring output currents up to 7 A. The LD1580 typical dropout voltage is 400mV at 7A while it decreases at lighter loads. This very low dropout is achieved thanks to a second input voltage pin, named VCONTROL, which is also responsable of the output power stage driving. The LD1580 is provided with an output voltage remote sense pin which reduces dramatically any SCHEMATIC DIAGRAM
P2PAK
SPAK-5L
SPAK-7L
output voltage variations that could occur due to load changes. On fixed voltage devices, the ADJ pin is still available. A small capacitor on this pin helps to improve transient response.
November 2002
1/18
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
LD1580
The LD1580 also features a built-in output current limit function and a thermal shutdown protection with hysteresis which prevents from excessive power dissipation in case of insufficient ABSOLUTE MAXIMUM RATINGS
Symbol VPOWER IOUT PD Tstg Top DC VPOWER voltage Output Current Power Dissipation Storage Temperature Range Operating Junction Temperature Range VCONTROL DC VCONTROL voltage Parameter Value from -0.3 to 6 from -0.3 to 13 Internally Limited Internally Limited -55 to +150 -40 to +125 Unit V V A W C C
heatsinking. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within 2% at the maximum output current and over the full temperature range.
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
THERMAL DATA
Symbol Parameter PENTAWATTTM HEPTAWATTTM 3 50 P2PAK 3 62.5 SPAK-5L SPAK-7L 2 TBD Unit C/W C/W
Rthj-case Thermal Resistance Junction-case Rthj-amb Thermal Resistance Junction-ambient
CONNECTION DIAGRAM (top view)
HEPTAWATTTM
PENTAWATTTM
P2PAK
SPAK-5L
SPAK-7L
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LD1580
ORDERING CODES
P2PAK (*) PENTAWATT SPAK-5L (*) SPAK-7L (*) LD1580K7-15 LD1580K7-18 LD1580K7-25 LD1580K7-30 LD1580K7-33 LD1580P2T LD1580V5V LD1580K5 HEPTAWATT LD1580V7V15 LD1580V7V18 LD1580V7V25 LD1580V7V30 LD1580V7V33 OUTPUT VOLTAGE 1.5V 1.8V 2.5V 3.0V 3.3V Adjustable
(*) Available in Tape & Reel with the suffix "R" for fixed version and "-R" for adjustable version.
TYPICAL APPLICATION CIRCUITS FOR FIXED VERSION
TYPICAL APPLICATION CIRCUITS FOR ADJUSTABLE VERSION
R2 VO = V REF (1 + ) R1
3/18
LD1580
ELECTRICAL CHARACTERISTICS FOR LD1580xx15 ( Tj = -40 C to 125 C, CP=330 F, CC=10 F, COUT=100 F, unless otherwise specified)
Symbol VO Parameter Output Voltage Test Conditions VCONTROL=4 V, VPOWER=2.3 V Tj=25 C, IOUT=0 mA VCONTROL=3 V to 12 V VPOWER=2.1 V to 5.5 V IOUT=0 to 7 A VO Line Regulation VCONTROL=2.65 V to 12 V VPOWER=2 V to 5.5 V IOUT=10 mA VCONTROL=4 V, VPOWER=2.3 V IOUT=0 to 7 A VCONTROL=4 V, VPOWER=2.3 V IOUT=100 mA VCONTROL=4 V, VPOWER=2.3 V IOUT=4 A VCONTROL=4 V, VPOWER=2 V IOUT=4 A VCONTROL=4 V, VPOWER=2.3 V IOUT=7 A IQ IOUT SVR Quiescent Current Output Current Limit Supply Voltage Rejection VCONTROL=4 V, VPOWER=2.3 V IOUT=0 A VCONTROL=4 V, VPOWER=2.3 V 1) VCONTROL=VPOWER=4 V Avg, VRIPPLE=1 VP-P IOUT=4 A, Tj=25 C VPOWER=2.3 V, IOUT=100 mA VPOWER=2.3 V, IOUT=1 A VPOWER=2.3 V, IOUT=4 A VPOWER=2.3 V, IOUT=7 A VDP Minimun VPOWER Voltage (VPOWER-VO) VCONTROL=4 V, IOUT=1 A VCONTROL=4 V, IOUT=4 A VCONTROL=4 V, IOUT=7 A TSHDN THYST Shutdown Temperature Threshold Thermal Shutdown Hysteresis (Note 2) (Note 8 60 Min. 1.485 1.470 Typ. 1.5 1.5 Max. 1.515 1.530 Unit V
0.08
0.24
%
VO IC
Load Regulation VCONTROL Pin Current
0.08 6 30 33 60 5 9 80
0.4 10 60 70 120 10
% mA
mA A dB
VDC
Minimun VCONTROL Voltage (VCONTROL-VO)
(Note 2)
0.95 0.95 1 1.05 0.05 0.2 0.4 170 5
1.15 1.15 1.2 1.3 0.15 0.4 0.6
V
V
C C
4/18
LD1580
ELECTRICAL CHARACTERISTICS FOR LD1580xx18 ( Tj = -40 C to 125 C, CP=330 F, CC=10 F, COUT=100 F, unless otherwise specified)
Symbol VO Parameter Output Voltage Test Conditions VCONTROL=4 V, VPOWER=2.6 V Tj=25 C, IOUT=0 mA VCONTROL=3.3 V to 12 V VPOWER=2.4 V to 5.5 V IOUT=0 to 7 A VO Line Regulation VCONTROL=2.95 V to 12 V VPOWER=2.3 V to 5.5 V IOUT=10 mA VCONTROL=4.3 V, VPOWER=2.6 V IOUT=0 to 7 A VCONTROL=4.3 V, VPOWER=2.6 V IOUT=100 mA VCONTROL=4.3 V, VPOWER=2.6 V IOUT=4 A VCONTROL=4.3 V, VPOWER=2.3 V IOUT=4 A VCONTROL=4.3 V, VPOWER=2.6 V IOUT=7 A IQ IOUT SVR Quiescent Current Output Current Limit Supply Voltage Rejection VCONTROL=4.3 V, VPOWER=2.6 V IOUT=0 A VCONTROL=4.3 V, VPOWER=2.6 V 1) VCONTROL=VPOWER=4.3 V Avg, VRIPPLE=1 VP-P IOUT=4 A, Tj=25 C (Note 8 58.4 Min. 1.782 1.764 Typ. 1.8 1.8 Max. 1.818 1.836 Unit V
0.08
0.24
%
VO IC
Load Regulation VCONTROL Pin Current
0.08 6 30 33 60 5 9 78.4
0.4 10 60 70 120 10
% mA
mA A dB
VDC
Minimun VCONTROL Voltage VPOWER=2.6 V, IOUT=100 mA (VCONTROL-VO) VPOWER=2.6 V, IOUT=1 A VPOWER=2.6 V, IOUT=4 A VPOWER=2.6 V, IOUT=7 A
(Note 2)
0.95 0.95 1 1.05
1.15 1.15 1.2 1.3 0.15 0.4 0.6
V
VDP
Minimun VPOWER Voltage (VPOWER-VO) Shutdown Temperature Threshold Thermal Shutdown Hysteresis
VCONTROL=4.3 V, IOUT=1 A VCONTROL=4.3 V, IOUT=4 A VCONTROL=4.3 V, IOUT=7 A
(Note 2)
0.05 0.2 0.4 170 5
V
TSHDN THYST
C C
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LD1580
ELECTRICAL CHARACTERISTICS FOR LD1580xx25 (Tj = -40 C to 125 C, CP=330 F, CC=10 F, COUT=100 F, unless otherwise specified)
Symbol VO Parameter Output Voltage Test Conditions VCONTROL=5 V, VPOWER=3.3 V Tj=25 C, IOUT=0 mA VCONTROL=4 V to 12 V VPOWER=3.1 V to 5.5 V IOUT=0 to 7 A VO Line Regulation VCONTROL=3.65 V to 12 V VPOWER=3 V to 5.5 V IOUT=10 mA VCONTROL=5 V, VPOWER=3.3 V IOUT=0 to 7 A VCONTROL=5 V, VPOWER=3.3 V IOUT=100 mA VCONTROL=5 V, VPOWER=3.3 V IOUT=4 A VCONTROL=5 V, VPOWER=3 V IOUT=4 A VCONTROL=5 V, VPOWER=3.3 V IOUT=7 A IQ IOUT SVR Quiescent Current Output Current Limit Supply Voltage Rejection VCONTROL=5 V, VPOWER=3.3 V IOUT=0 A VCONTROL=5 V, VPOWER=3.3 V (Note1) VCONTROL=VPOWER=5 V Avg, VRIPPLE=1 VP-P IOUT=4 A, Tj=25 C (Note 2) 8 55.5 Min. 2.475 2.450 Typ. 2.5 2.5 Max. 2.525 2.550 Unit V
0.08
0.24
%
VO IC
Load Regulation VCONTROL Pin Current
0.08 6 30 33 60 5 9 75.5
0.4 10 60 70 120 10
% mA
mA A dB
VDC
Minimun VCONTROL Voltage VPOWER=3.3 V, IOUT=100 mA (VCONTROL-VO) VPOWER=3.3 V, IOUT=1 A VPOWER=3.3 V, IOUT=4 A VPOWER=3.3 V, IOUT=7 A VCONTROL=5 V, IOUT=1 A VCONTROL=5 V, IOUT=4 A VCONTROL=5 V, IOUT=7 A
0.95 0.95 1 1.05
1.15 1.15 1.2 1.3 0.15 0.4 0.6
V
VDP
Minimun VPOWER Voltage (VPOWER-VO) Shutdown Temperature Threshold Thermal Shutdown Hysteresis
(Note 2)
0.05 0.2 0.4 170 5
V
TSHDN THYST
C C
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LD1580
ELECTRICAL CHARACTERISTICS FOR LD1580xx30 (Tj = -40 C to 125 C, CP=330 F, CC=10 F, COUT=100 F, unless otherwise specified)
Symbol VO Parameter Output Voltage Test Conditions VCONTROL=5.5 V, VPOWER=3.8 V Tj=25 C, IOUT=0 mA VCONTROL=4.5 V to 12 V VPOWER=3.6 V to 5.5 V IOUT=0 to 7 A VO Line Regulation VCONTROL=4.15 V to 12 V VPOWER=3.5 V to 5.5 V IOUT=10 mA VCONTROL=5.5 V, VPOWER=3.8 V IOUT=0 to 7 A VCONTROL=5.5 V, VPOWER=3.8 V IOUT=100 mA VCONTROL=5.5 V, VPOWER=3.8 V IOUT=4 A VCONTROL=5.5 V, VPOWER=3.5 V IOUT=4 A VCONTROL=5.5 V, VPOWER=3.8 V IOUT=7 A IQ IOUT SVR Quiescent Current Output Current Limit Supply Voltage Rejection VCONTROL=5.5 V, VPOWER=3.8 V IOUT=0 A VCONTROL=5.5 V, VPOWER=3.8 V 1) VCONTROL=VPOWER=5.5 V Avg, VRIPPLE=1 VP-P IOUT=4 A, Tj=25 C (Note 8 54 Min. 2.970 2.940 Typ. 3 3 Max. 3.030 3.060 Unit V
0.08
0.24
%
VO IC
Load Regulation VCONTROL Pin Current
0.08 6 30 33 60 5 9 74
0.4 10 60 70 120 10
% mA
mA A dB
VDC
Minimun VCONTROL Voltage VPOWER=3.8 V, IOUT=100 mA (VCONTROL-VO) VPOWER=3.8 V, IOUT=1 A VPOWER=3.8 V, IOUT=4 A VPOWER=3.8 V, IOUT=7 A
(Note 2)
0.95 0.95 1 1.05
1.15 1.15 1.2 1.3 0.15 0.4 0.6
V
VDP
Minimun VPOWER Voltage (VPOWER-VO) Shutdown Temperature Threshold Thermal Shutdown Hysteresis
VCONTROL=5.5 V, IOUT=1 A VCONTROL=5.5 V, IOUT=4 A VCONTROL=5.5 V, IOUT=7 A
(Note 2)
0.05 0.2 0.4 170 5
V
TSHDN THYST
C C
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LD1580
ELECTRICAL CHARACTERISTICS FOR LD1580XX33 (Tj = -40 C to 125 C, CP=330 F, CC=10 F, COUT=100 F, unless otherwise specified)
Symbol VO Parameter Output Voltage Test Conditions VCONTROL=5.8 V, VPOWER=4.1 V Tj=25 C, IOUT=0 mA VCONTROL=4.8 V to 12 V VPOWER=3.9 V to 5.5 V IOUT=0 to 7 A VO Line Regulation VCONTROL=4.45 V to 12 V VPOWER=3.8 V to 5.5 V IOUT=10 mA VCONTROL=5.8 V, VPOWER=4.1 V IOUT=0 to 7 A VCONTROL=5.8 V, VPOWER=4.1 V IOUT=100 mA VCONTROL=5.8 V, VPOWER=4.1 V IOUT=4 A VCONTROL=5.8 V, VPOWER=3.8 V IOUT=4 A VCONTROL=5.8 V, VPOWER=4.1 V IOUT=7 A IQ IOUT SVR Quiescent Current Output Current Limit Supply Voltage Rejection VCONTROL=5.8 V, VPOWER=4.1 V IOUT=0 A VCONTROL=5.8 V, VPOWER=4.1 V 1) VCONTROL=VPOWER=5.8 V Avg, VRIPPLE=1 VP-P IOUT=4 A, Tj=25 C (Note 8 53.1 Min. 3.267 3.234 Typ. 3.3 3.3 Max. 3.333 3.366 Unit V
0.08
0.24
%
VO IC
Load Regulation VCONTROL Pin Current
0.08 6 30 33 60 5 9 73.1
0.4 10 60 70 120 10
% mA
mA A dB
VDC
Minimun VCONTROL Voltage VPOWER=4.1 V, IOUT=100 mA (VCONTROL-VO) VPOWER=4.1 V, IOUT=1 A VPOWER=4.1 V, IOUT=4 A VPOWER=4.1 V, IOUT=7 A
(Note 2)
0.95 0.95 1 1.05
1.15 1.15 1.2 1.3 0.15 0.4 0.6
V
VDP
Minimun VPOWER Voltage (VPOWER-VO) Shutdown Temperature Threshold Thermal Shutdown Hysteresis
VCONTROL=5.8 V, IOUT=1 A VCONTROL=5.8 V, IOUT=4 A VCONTROL=5.8 V, IOUT=7 A
(Note 2)
0.05 0.2 0.4 170 5
V
TSHDN THYST
C C
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LD1580
ELECTRICAL CHARACTERISTICS FOR LD1580 ( Tj = - 40 C to 125 C, CP=330 F, CC=10 F, COUT=100 F, unless otherwise specified)
Symbol VO Parameter Output Voltage Test Conditions VCONTROL=2.75 V, VPOWER=2 V Tj=25 C, IOUT=10 mA VCONTROL=2.7 V to 12 V VPOWER=2.05 V to 5.5 V IOUT=0.01 to 7 A VO Line Regulation VCONTROL=2.5 V to 12 V VPOWER=1.75 V to 5.5 V IOUT=10 mA VCONTROL=2.75 V, VPOWER=2.1 V IOUT=0.01 to 7 A VCONTROL=2.75 V, VPOWER=2.05 V IOUT=100 mA VCONTROL=2.75 V, VPOWER=2.05 V IOUT=4 A VCONTROL=2.75 V, VPOWER=1.75 V IOUT=4 A VCONTROL=2.75 V, VPOWER=2.05 V IOUT=7 A IADJ IOUT SVR Adjust Pin Current Output Current Limit Supply Voltage Rejection VCONTROL=2.75 V, VPOWER=2.05 V IOUT=10 mA VCONTROL=2.75 V, VPOWER=2.05 V (Note 1) VCONTROL=VPOWER=3.75 V Avg VRIPPLE=1 VP-P IOUT=4 A, Tj=25 C (Note 2) 8 61.5 Min. 1.237 1.225 Typ. 1.250 1.250 Max. 1.263 1.275 Unit V
0.08
0.24
%
VO IC
Load Regulation VCONTROL Pin Current
0.08 6 30 33 60 50 9 81.5
0.4 10 60 70 120 120
% mA
mA A dB
VDC
Minimun VCONTROL Voltage VPOWER=2.05 V, IOUT=100 mA (VCONTROL-VO) VPOWER=2.05 V, IOUT=1 A VPOWER=2.05 V, IOUT=4 A VPOWER=2.05 V, IOUT=7 A
0.95 0.95 1 1.05
1.15 1.15 1.2 1.3 0.15 0.4 0.6
V
VDP
Minimun VPOWER Voltage (VPOWER-VO) Shutdown Temperature Threshold Thermal Shutdown Hysteresis
VCONTROL=2.75 V, IOUT=1 A VCONTROL=2.75 V, IOUT=4 A VCONTROL=2.75 V, IOUT=7 A
(Note 2)
0.05 0.2 0.4 170 5
V
TSHDN THYST
C C
Note 1: Measured when the VOUT voltage drops below 100mV with respect to its nominal value. Note 2: Measured when the VOUT voltage drops below 2% with respect to its nominal value.
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LD1580
TYPICAL CHARACTERISTICS (unless otherwise specified Tj=25C, CP=330F, CC=10F, COUT=100F) Figure 1 : Output Voltage vs Temperature Figure 4 : Output Voltage vs Temperature
Figure 2 : Minimun VCONTROL Voltage vs Temperature
Figure 5 : VCONTROL Pin Current vs Temperature
Figure 3 : Minimun VPOWER Voltage vs Output Current
Figure 6 : Minimun VPOWER Voltage vs Temperature
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LD1580
Figure 7 : VCONTROL Pin Current vs Output Current Figure 10 : Supply Voltage Rejection vs Output Current
Figure 8 : Output Current Limit vs Temperature
Figure 11 : Line Transient Response
VPOWER =3.3V, VCONTROL=5 to 7V, I OUT=1A
Figure 9 : Quiescent Current vs Temperature
Figure 12 : Line Transient Response
VPOWER =VCONTROL=5 to 7V, IOUT=1A
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LD1580
Figure 13 : Load transient Response Figure 15 : Load transient Response
VPOWER =VCONTROL=5V
VPOWER =VCONTROL=5V
Figure 14 : Load transient Response
VPOWER =VCONTROL=5V
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LD1580
HEPTAWATT (VERTICAL) MECHANICAL DATA
DIM. A C D D1 E F F1 G G1 G2 H2 H3 L L1 L2 L3 L5 L6 L7 M M1 Dia1 MIN. mm. TYP MAX. 4.8 1.37 2.8 1.35 0.55 0.8 0.9 2.67 5.21 7.8 10.4 10.4 MIN. inch TYP. MAX. 0.189 0.054 0.110 0.053 0.022 0.031 0.035 0.105 0.205 0.307 0.409 0.409
2.4 1.2 0.35 0.6 2.41 4.91 7.49 10.05 16.97 14.92 21.54 22.62 2.6 15.1 6 2.8 5.08 3.65 2.54 5.08 7.62
0.094 0.047 0.014 0.024 0.095 0.193 0.295 0.396 0.668 0.587 0.848 0.891 0.100 0.200 0.300
3 15.8 6.6
0.102 0.594 0.236 0.110 0.200
0.118 0.622 0.260
3.85
0.144
0.152
P023A
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LD1580
PENTAW ATT (VERTICAL) MECHANICAL DATA
DIM. A C D D1 E F F1 G G1 H2 H3 L L1 L2 L3 L5 L6 L7 M M1 Dia1 mm. TYP inch TYP.
MIN.
2.4 1.2 0.35 0.8 1 3.2 6.6 10.05
3.4 6.8
MAX. 4.8 1.37 2.8 1.35 0.55 1.05 1.4 3.6 7 10.4 10.4
MIN.
0.094 0.047 0.014 0.031 0.039 0.126 0.260 0.396
0.134 0.268
MAX. 0.189 0.054 0.110 0.053 0.022 0.041 0.055 0.142 0.276 0.409 0.409
17.85 15.75 21.4 22.5 2.6 15.1 6 4.5 4 3.65 3.85 0.144 3 15.8 6.6 0.102 0.594 0.236
0.703 0.620 0.843 0.886 0.118 0.622 0.260 0.177 0.157 0.152
P010E
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LD1580
P2PAK MECHANICAL DATA
mm. DIM. MIN. A A2 C D D1 E F G G1 H2 L L2 L3 R V2 0 13.59 1.27 1.30 0.30 8 0 4.30 0.03 1.17 2.40 8.95 0.35 0.80 3.20 6.60 TYP MAX. 4.80 0.23 1.37 2.80 9.35 0.55 1.05 3.60 7.00 10.40 14.39 1.40 1.70 0.535 0.050 0.051 0.012 8 MIN. 0.169 0.001 0.046 0.094 0.352 0.013 0.031 0.126 0.260 TYP. MAX. 0.188 0.009 0.053 0.110 0.368 0.021 0.041 0.142 0.275 0.409 0.566 0.055 0.067 inch
P010L4A/B
15/18
LD1580
SPAK-5L MECHANICAL DATA
DIM. A A2 C C1 D D1 F G G1 H1 H2 H3 L L1 L2 M N V 3 8.89 0.79 0.25 6 3 9.27 8.89 10.41 7.49 9.14 1.04 0.350 0.031 0.010 6 1.02 7.87 0.63 1.69 6.8 5.59 9.52 9.14 10.67 0.365 0.350 0.410 0.295 0.360 0.041 mm. MIN. 1.78 0.03 0.25 0.25 1.27 8.13 0.79 0.040 0.310 0.025 0.067 0.268 0.220 0.375 0.360 0.420 TYP MAX. 2.03 0.13 MIN. 0.070 0.001 0.010 0.010 0.050 0.320 0.031 inch TYP. MAX. 0.080 0.005
PO13F1/B
16/18
LD1580
SPAK-7L MECHANICAL DATA
DIM. A A2 C C1 D D1 F G G1 H1 H2 H3 L L1 L2 M N V 3 8.89 0.79 0.25 6 3 9.27 8.89 10.41 7.49 9.14 1.04 0.350 0.031 0.010 6 1.02 7.87 0.63 1.27 7.62 5.59 9.52 9.14 10.67 0.365 0.350 0.410 0.295 0.360 0.041 mm. MIN. 1.78 0.03 0.25 0.25 1.27 8.13 0.79 0.040 0.310 0.025 0.050 0.3 0.220 0.375 0.360 0.420 TYP MAX. 2.03 0.13 MIN. 0.070 0.001 0.010 0.010 0.050 0.320 0.031 inch TYP. MAX. 0.080 0.005
PO13F2/A
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LD1580
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. (c) The ST logo is a registered trademark of STMicroelectronics (c) 2002 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. (c) http://www.st.com
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