LM2678S-3.3 National Semiconductor, LM2678S-3.3 Datasheet - Page 22

• Manufacturer Part Number: LM2678S-3.3
• Description: DC/DC Converter IC
• Manufacturer: National Semiconductor

Specifications of LM2678S-3.3

• Input Voltage: 40V
• Output Voltage: 3.3V
• No. Of Pins: 7
• Termination Type: SMD
• Mounting Type: Through Hole
• Voltage Regulator Type: Buck Switching
• Output Current Max: 5A
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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Capacitor Selection Guides
Reverse
Voltage
50V or
More
20V
30V
40V
(V)
International Rectifier
Motorola
General
Semiconductor
Diodes, Inc.
TABLE 5. Schottky Diode Selection Table
30WQ03F
30WQ04F
MBRS340
MBRD340
30WQ05F
30BQ040
Diode Manufacturer Contact Numbers
SK32
SK33
SK34
SK35
3A
Surface Mount
(Continued)
MBRD1545CT
5A or More
MBRD835L
6TQ045S
Phone
FAX
Phone
FAX
Phone
FAX
Phone
FAX
22
[phone]
[phone]
[phone]
[phone]
[phone]
[phone]
[phone]
[phone]
31DQ03
31DQ05
SR305
MBR340
MBR350
31DQ04
1N5820
1N5821
1N5822
SR302
SR403
3A
Through Hole
80SQ045
MBR745
6TQ045
1N5825
5A or
More