LM2679T-ADJ National Semiconductor, LM2679T-ADJ Datasheet - Page 19

• Manufacturer Part Number: LM2679T-ADJ
• Description: DC/DC Converter IC
• Manufacturer: National Semiconductor

Specifications of LM2679T-ADJ

• Input Voltage: 40V
• Output Current: 5A
• Output Voltage: 37V
• No. Of Outputs: 1
• No. Of Pins: 7
• Termination Type: Through Hole
• Mounting Type: Through Hole
• Voltage Regulator Type: Switching
• Output Current Max: 5A
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Application Hints
Table 4. Input Capacitors for Fixed Output Voltage Application
No. represents the number of identical capacitor types to be connected in parallel
C Code indicates the Capacitor Reference number in Table 2 for identifying the specific component from the manufacturer.
*
(Assumes worst case maximum input voltage and load current for a given inductance value)
Check voltage rating of capacitors to be greater than application input voltage.
Voltage
Voltage
Output
Output
(V)
3.3
(V)
3.3
12
12
5
5
Inductance
Inductance
(µH)
(µH)
100
100
10
15
22
33
10
15
22
33
47
10
15
22
33
47
68
10
15
22
33
10
15
22
33
47
10
15
22
33
47
68
Sanyo OS-CON SA
(Continued)
AVX TPS Series
No.
No.
3
3
4
4
4
4
2
*
*
*
2
*
*
*
*
2
2
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Series
C Code
C Code
C10
C10
C9
C7
C4
C9
C9
C8
C9
C7
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Surface Mount
No.
No.
Sprague 594D
Sanyo MV-GX
2
3
2
2
2
3
3
2
1
2
2
3
3
2
2
1
2
2
1
1
2
2
2
1
1
2
2
2
2
1
1
1
Series
Series
19
C Code
C Code
C10
C13
C13
C13
C12
C13
C13
C13
C10
C10
C12
C13
C13
C13
C13
C13
C14
C14
C13
C14
C12
C12
C14
C13
C11
C6
Through Hole
C8
C8
C8
C8
C8
C8
Nichicon PL Series
Kemet T495 Series
No.
No.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
4
3
3
3
4
4
3
2
4
4
4
4
3
2
2
C Code
C Code
C18
C25
C24
C24
C25
C25
C25
C23
C19
C18
C18
C18
C24
C23
C21
C22
C12
C12
C12
C10
C12
C12
C12
C10
C10
C10
C12
C12
C12
C12
C9
C9
Panasonic HFQ
No.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Series
C Code
C16
C16
C16
C16
C13
C11
C14
C13
C15
C11
C8
C8
C8
C8
C8
C8
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