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LTM4606MPV Datasheet(PDF) 15 Page - Linear Technology

Part # LTM4606MPV
Description  Ultralow EMI 28VIN, 6A DC/DC 關Module
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTM4606MPV Datasheet(HTML) 15 Page - Linear Technology

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LTM4606
15
4606f
APPLICATIONS INFORMATION
Figure 12. No Heat Sink
Figure 13. BGA Heat Sink
AMBIENT TEMPERATURE (°C)
70
0
1
2
3
4
5
6
75
80
85
90
4606 F12
95
12VIN, 3.3VOUT, 0LFM
12VIN, 3.3VOUT, 200LFM
12VIN, 3.3VOUT, 400LFM
AMBIENT TEMPERATURE (°C)
70
0
1
2
3
4
5
6
75
80
85
90
4606 F13
95
12VIN, 3.3VOUT, 0LFM
12VIN, 3.3VOUT, 200LFM
12VIN, 3.3VOUT, 400LFM
Figure 15. BGA Heat Sink
AMBIENT TEMPERATURE (°C)
60
0
1
2
3
4
6
65
70
75
80
4606 G15
85
90
5
24VIN, 3.3VOUT, 0LFM
24VIN, 3.3VOUT, 200LFM
24VIN, 3.3VOUT, 400LFM
Figure 14. No Heat Sink
AMBIENT TEMPERATURE (°C)
60
0
1
2
3
4
5
6
65
70
75
80
4606 F14
85
24VIN, 3.3VOUT, 0LFM
24VIN, 3.3VOUT, 200LFM
24VIN, 3.3VOUT, 400LFM
with a rating twice the maximum input current needs to be
provided to protect each unit from catastrophic failure.
Radiated EMI Noise
High radiated EMI noise is a disadvantage for switching
regulators by nature. Fast switching turn-on and turn-off
make large di/dt change in the converters, which act as
the radiation sources in most systems. The LTM4606 in-
tegrates the feature to minimize the radiated EMI noise for
applications with low-noise requirements. Optimized gate
driver for the MOSFET and noise cancellation network are
installed inside the LTM4606 to achieve low radiated EMI
noise. Figure 16 shows a typical example for LTM4606 to
meet the Class B of CISPR 22 radiated emission limit.
Figure 16. Radiated Emission Scan with 12VIN to 2.5VOUT at 6A.
CISPR.22 Class B Chase 6141 BiLog, RG-8 1.5 Meters Chase
CPA9231A Horizontal, 3 Meters All Sides, 30MHz to 1000MHz,
RES BW 120kHz, SWP 455ms.
FREQUENCY (MHz)
0
100
10
90
70
50
30
80
60
40
20
0
500
900
300
700
4606 F16
1000
400
800
200
600
100



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