LM2676S-12 National Semiconductor, LM2676S-12 Datasheet - Page 18

• Manufacturer Part Number: LM2676S-12
• Description: DC/DC Converter IC
• Manufacturer: National Semiconductor

Specifications of LM2676S-12

• Input Voltage: 40V
• Output Current: 3A
• Output Voltage: 12V
• No. Of Pins: 7
• Termination Type: SMD
• Mounting Type: Through Hole
• Voltage Regulator Type: Switching
• Output Current Max: 3A
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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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
3.3
3.3
(V)
(V)
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.
2
3
2
2
3
2
2
3
3
1
1
1
1
1
1
1
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Series
C Code
C Code
C10
C10
C10
C10
C10
C10
C7
C7
C7
C9
C5
C9
C5
C5
C7
C7
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
No.
Surface Mount
No.
Sprague 594D
Sanyo MV-GX
1
1
2
2
1
1
2
2
1
2
2
2
2
2
2
1
2
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
Series
Series
18
C Code
C Code
C10
C14
C12
C10
C14
C12
C10
C10
C10
C10
C13
C12
C11
C10
C13
C13
C12
C13
C13
C10
C10
C12
C12
C13
C13
C13
Through Hole
C4
C4
C4
C7
C7
C7
Nichicon PL Series
Kemet T495 Series
No.
No.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
3
2
2
2
3
3
2
2
2
3
3
3
2
2
C Code
C Code
C18
C24
C20
C14
C14
C18
C23
C20
C18
C18
C18
C18
C23
C21
C22
C10
C12
C12
C11
C12
C12
C10
C10
C12
C12
C12
C5
C8
C8
C8
C7
C7
Panasonic HFQ
No.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Series
C Code
C13
C12
C13
C13
C12
C13
C12
C11
C6
C6
C6
C6
C6
C6
C6
C6