參數(shù)資料
型號： LM2678LD-12
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： 8.75 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, DSO14
封裝： LLP-14
文件頁數(shù)： 13/26頁
文件大小： 441K
代理商： LM2678LD-12
Capacitor Selection Guides (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
(H)
Surface Mount
AVX TPS Series
Sprague 594D
Series
Kemet T495 Series
No.
C Code
No.
C Code
No.
C Code
3.3
10
3
C7
2
C10
3
C9
15
**
3
C13
4
C12
22
**
2
C13
3
C12
33
**
2
C13
3
C12
5
10
3
C4
2
C6
3
C9
15
4
C9
3
C12
4
C10
22
**
3
C13
4
C12
33
**
2
C13
3
C12
47
**
1
C13
2
C12
12
10
4
C9
2
C10
4
C10
15
4
C8
2
C10
4
C10
22
4
C9
3
C12
4
C10
33
**
3
C13
4
C12
47
**
2
C13
3
C12
68
**
2
C13
2
C12
100
**
1
C13
2
C12
Output
Voltage (V)
Inductance
(H)
Through Hole
Sanyo OS-CON SA
Series
Sanyo MV-GX Series
Nichicon PL Series
Panasonic HFQ
Series
No.
C Code
No.
No.
C Code
No.
C Code
3.3
10
2
C9
2
C8
1
C18
1
C8
15
**
2
C13
1
C25
1
C16
22
**
1
C14
1
C24
1
C16
33
**
1
C14
1
C24
1
C16
5
10
2
C7
2
C8
1
C25
1
C8
15
**
2
C8
1
C25
1
C8
22
**
2
C13
1
C25
1
C16
33
**
1
C14
1
C23
1
C13
47
**
1
C12
1
C19
1
C11
12
10
2
C10
2
C8
1
C18
1
C8
15
2
C10
2
C8
1
C18
1
C8
22
**
2
C8
1
C18
1
C8
33
**
2
C12
1
C24
1
C14
47
**
1
C14
1
C23
1
C13
68
**
1
C13
1
C21
1
C15
100
**
1
C11
1
C22
1
C11
* 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.
LM2678
www.national.com
20
相關(guān)PDF資料
PDF描述
LM2678LDX-5.0 8.75 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, DSO14
LM2678LD-3.3 8.75 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, DSO14
LM2678LD-5.0 8.75 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, DSO14
LM2678LDX-12 8.75 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, DSO14
LM2734XMKX/NOPB 2.5 A SWITCHING REGULATOR, 1900 kHz SWITCHING FREQ-MAX, PDSO6
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2678LD-3.3 制造商:Rochester Electronics LLC 功能描述:5A STEP DOWN SIMP SWITCH 260KH - Bulk
LM2678LD-5.0 制造商:Rochester Electronics LLC 功能描述:5A STEP DOWN SIMP SWITCH 260KH - Bulk
LM2678S-12 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT
LM2678S-12/NOPB 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 HIGH EFF 5A STEP- DOWN VLTG REG RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT
LM2678S3.3 制造商:National Semiconductor 功能描述:Conv DC-DC Single Step Down 8V to 40V 8-Pin(7+Tab) TO-263 Rail
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