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LM46002PWPR Datasheet(PDF) 11 Page - Texas Instruments

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Part # LM46002PWPR
Description  SIMPLE SWITCHER 3.5 V to 60 V 2 A Synchronous Step-Down Voltage Converter
PDF  52 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM46002PWPR Datasheet(HTML) 11 Page - Texas Instruments

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background image
0
10
20
30
40
50
60
70
80
90
100
0.1
1
10
100
Frequency (MHz)
Peak Emissions
Quasi Peak Limit
Average Limit
C001
0
10
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50
60
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80
90
100
0.1
1
10
100
Frequency (MHz)
Peak Emissions
Quasi Peak Limit
Average Limit
C001
0
10
20
30
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60
70
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0
200
400
600
800
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Frequency (MHz)
Evaluation Board
EN 55022 Class B Limit
EN 55022 Class A Limit
C001
0
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50
60
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0
200
400
600
800
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Frequency (MHz)
Evaluation Board
EN 55022 Class B Limit
EN 55022 Class A Limit
C001
1.E+04
1.E+05
1.E+06
3.5
3.7
3.9
4.1
4.3
4.5
VIN (V)
Load=0.01A
Load=0.1A
Load=0.5A
Load=1A
Load=1.5A
Load=2A
C009
1.0E+04
1.0E+05
1.0E+06
5.0
5.5
6.0
6.5
7.0
VIN (V)
Load=0.1A
Load=0.5A
Load=1A
Load=1.5A
Load=2A
C005
LM46002
www.ti.com
SNVSA13B – APRIL 2014 – REVISED SEPTEMBER 2014
Typical Characteristics (continued)
Unless otherwise specified, VIN = 24 V, VOUT = 3.3 V, FS = 500 kHz, L = 10 µH, COUT = 150 µF, CFF = 47 pF. Please refer to
Application Performance Curves for Bill of Materials (BOM) for other VOUT and FS combinations.
VOUT = 5 V
FS = 1 MHz
VOUT = 3.3 V
FS = 500 kHz
Figure 20. Switching Frequency vs VIN in Drop-Out
Figure 19. Switching Frequency vs VIN in Drop-Out
Operation
Operation
VOUT = 3.3 V
FS = 500 kHz
IOUT = 2 A
VOUT = 5 V
FS = 1 MHz
IOUT = 2 A
Measured on the LM46002PWPEVM with default BOM. No input
Measured on the LM46002PWPEVM with L = 6.8 µH, COUT = 47
filter used.
µF, CFF = 47 pF. No input filter used.
Figure 21. Radiated EMI Curve
Figure 22. Radiated EMI Curve
VOUT = 3.3 V
FS = 500 kHz
IOUT = 2 A
VOUT = 5 V
FS = 1 MHz
IOUT = 2 A
Measured on the LM46002PWPEVM with default BOM. Input filter:
Measured on the LM46002PWPEVM with L = 6.8 µH, COUT = 47
Lin = 1 µH Cd = 47 µF CIN4 = 68 µF
µF, CFF = 47 pF. Input filter Lin = 1 µH Cd = 47 µF CIN4 = 68 µF
Figure 23. Conducted EMI Curve
Figure 24. Conducted EMI Curve
Copyright © 2014, Texas Instruments Incorporated
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Product Folder Links: LM46002



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