LM2678SD-3.3/NOPB National Semiconductor, LM2678SD-3.3/NOPB Datasheet - Page 17

• Manufacturer Part Number: LM2678SD-3.3/NOPB
• Description: IC REG SIMPLE SWITCHER 14-LLP
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Down (Buck)r

Specifications of LM2678SD-3.3/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3V
• Current - Output: 5A
• Frequency - Switching: 260kHz
• Voltage - Input: 8 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 14-LLP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: LM2678SD-3.3; LM2678SD-3.3TR

Capacitor Selection Guides
Reference
Capacitor
Code
C10
C11
C12
C13
C1
C2
C3
C4
C5
C6
C7
C8
C9
C (µF) WV (V)
330
100
220
100
47
33
68
22
10
22
AVX TPS Series
TABLE 2. Input and Output Capacitor Codes
6.3
10
10
16
16
20
20
25
35
35
Irms
1.15
1.15
0.89
1.15
0.77
0.94
0.77
0.63
0.66
(A)
1.1
C (µF) WV (V)
Sprague 594D Series
120
220
150
100
180
68
47
47
33
68
15
33
15
Surface Mount
17
6.3
6.3
10
10
16
16
16
20
25
25
35
35
50
Irms
1.05
1.35
1.95
1.15
1.05
0.75
(A)
1.1
1.4
1.3
1.6
0.9
1
1
C (µF) WV (V)
100
220
330
100
150
220
4.7
33
47
68
10
22
Kemet T495 Series
6.3
6.3
6.3
10
10
10
20
20
20
35
35
50
Irms
0.82
0.78
0.94
0.94
0.63
0.63
0.66
(A)
1.1
1.1
1.1
1.1
1.1
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