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參數(shù)資料
| 型號(hào)： | LM2671LDX-12 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features |
| 中文描述： | 1.25 A SWITCHING REGULATOR, 275 kHz SWITCHING FREQ-MAX, DSO16 |
| 封裝： | LLP-16 |
| 文件頁數(shù)： | 9/26頁 |
| 文件大?。?/td> | 972K |
| 代理商： | LM2671LDX-12 |
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Test Circuit and Layout Guidelines
10004222
C
IN
- 22 μF, 50V Tantalum, Sprague “199D Series”
C
OUT
- 47 μF, 25V Tantalum, Sprague “595D Series”
D1 - 3.3A, 50V Schottky Rectifier, IR 30WQ05F
L1 - 68 μH Sumida
#
RCR110D-680L
C
B
- 0.01 μF, 50V Ceramic
FIGURE 2. Standard Test Circuits and Layout Guides
Fixed Output Voltage Versions
10004223
C
IN
- 22 μF, 50V Tantalum, Sprague “199D Series”
C
OUT
- 47 μF, 25V Tantalum, Sprague “595D Series”
D1 - 3.3A, 50V Schottky Rectifier, IR 30WQ05F
L1 - 68 μH Sumida
#
RCR110D-680L
R1 - 1.5 k
, 1%
C
B
- 0.01 μF, 50V Ceramic
For a 5V output, select R2 to be 4.75 k
, 1%
where V
REF
= 1.21V
Use a 1% resistor for best stability.
FIGURE 3. Standard Test Circuits and Layout Guides
Adjustable Output Voltage Versions
L
www.national.com
9
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| LM2671LD-ADJ | SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features |
| LM2671LD-5.0 | SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features |
| LM2671LD-3.3 | SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features |
| LM2671LD-12 | SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features |
| LM2671N-3.3 | SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2671LDX-3.3 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER㈢ Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features |
| LM2671LDX-5.0 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features |
| LM2671LDX-ADJ | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER㈢ Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features |
| LM2671M-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(fēng)格:SMD/SMT |
| LM2671M-12/NOPB | 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(fēng)格:SMD/SMT |
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