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參數(shù)資料
| 型號： | LM2670T-ADJ |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync |
| 中文描述： | 5.4 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PZFM7 |
| 封裝： | TO-220, 7 PIN |
| 文件頁數(shù)： | 18/23頁 |
| 文件大小： | 361K |
| 代理商： | LM2670T-ADJ |
Application Hints
(Continued)
Table 4. Input Capacitors for Fixed Output Voltage Application
(Assumes worst case maximum input voltage and load current for a given inductance value)
Output
Voltage
(V)
Inductance
(μH)
Surface Mount
Sprague 594D
Series
No.
1
1
2
2
1
1
2
2
1
2
2
2
2
2
2
1
AVX TPS Series
Kemet T495 Series
No.
2
3
*
*
2
2
3
*
*
2
2
3
3
*
*
*
C Code
C5
C9
*
*
C5
C5
C10
*
*
C7
C7
C10
C10
*
*
*
C Code
C7
C10
C13
C13
C7
C7
C12
C13
C13
C10
C10
C12
C12
C13
C13
C13
No.
2
3
3
2
2
2
3
3
2
2
2
3
3
3
2
2
C Code
C8
C10
C12
C12
C8
C8
C11
C12
C12
C7
C7
C10
C10
C12
C12
C12
3.3
10
15
22
33
10
15
22
33
47
10
15
22
33
47
68
100
5
12
Output
Voltage
(V)
Inductance
(μH)
Through Hole
Sanyo OS-CON SA
Series
No.
1
1
*
*
1
1
*
*
*
1
1
1
*
*
*
*
Sanyo MV-GX
Series
No.
2
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
Nichicon PL Series
Panasonic HFQ
Series
No.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
C Code
C7
C10
*
*
C7
C7
*
*
*
C9
C10
C10
*
*
*
*
C Code
C4
C10
C14
C12
C4
C4
C10
C14
C12
C10
C10
C10
C10
C13
C12
C11
No.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
C Code
C5
C18
C24
C20
C14
C14
C18
C23
C20
C18
C18
C18
C18
C23
C21
C22
C Code
C6
C6
C13
C12
C6
C6
C13
C13
C12
C6
C6
C6
C6
C13
C12
C11
3.3
10
15
22
33
10
15
22
33
47
10
15
22
33
47
68
100
5
12
*
Check voltage rating of capacitors to be greater than application input voltage.
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.
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