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參數(shù)資料
| 型號： | LM2676 |
| 文件頁數(shù)： | 13/25頁 |
| 文件大?。?/td> | 495K |
| 代理商： | LM2676 |
LM2671 Series Buck Regulator Design Procedure (Fixed Output)
(Continued)
PROCEDURE (Fixed Output Voltage Version)
7. Frequency Synchronization (optional)
The LM2671 (oscillator) can be synchronized to run with an
external oscillator, using the sync pin (pin 3). By doing so, the
LM2671 can be operated at higher frequencies than the
standard frequency of 260 kHz. This allows for a reduction in
the size of the inductor and output capacitor.
As shown in the drawing below, a signal applied to a RC filter at
the sync pin causes the device to synchronize to the frequency
of that signal. For a signal with a peak-to-peak amplitude of 3V
or greater, a 1 k
resistor and a 100 pF capacitor are suitable
values.
EXAMPLE (Fixed Output Voltage Version)
7. Frequency Synchronization (optional)
For all applications, use a 1 k
resistor and a 100 pF capacitor
for the RC filter.
INDUCTOR VALUE SELECTION GUIDES
(For Continuous Mode Operation)
10004229
FIGURE 4. LM2671-3.3
10004230
FIGURE 5. LM2671-5.0
10004231
FIGURE 6. LM2671-12
10004232
FIGURE 7. LM2671-ADJ
L
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相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2677 | |
| LM2677SX-12 | Voltage-Mode SMPS Controller |
| LM2677SX-3.3 | Voltage-Mode SMPS Controller |
| LM2677SX-5.0 | Voltage-Mode SMPS Controller |
| LM2677SX-ADJ | Voltage-Mode SMPS Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2676EP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LM2676EP Enhanced Plastic SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator |
| LM2676LD-12 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| LM2676LD-3.3 | 制造商:Rochester Electronics LLC 功能描述:3A STEP DOWN SIMP SWITCH 260KH - Bulk 制造商:Texas Instruments 功能描述: |
| LM2676LD-ADJ | 制造商:Rochester Electronics LLC 功能描述:3A STEP DOWN SIMP SWITCH 260KH - Bulk 制造商:Texas Instruments 功能描述: |
| LM2676LDX-ADJ | 制造商:Rochester Electronics LLC 功能描述:3A STEP DOWN SIMP SWITCH 260KH - Bulk 制造商:Texas Instruments 功能描述: |
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