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參數(shù)資料
| 型號： | C3216X7R1E105K |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | N-Channel FET Synchronous Buck Regulator Controller for Low Output Voltages |
| 中文描述： | N溝道場效應(yīng)管同步降壓穩(wěn)壓控制器輸出電壓低 |
| 文件頁數(shù)： | 14/22頁 |
| 文件大?。?/td> | 602K |
| 代理商： | C3216X7R1E105K |
Example Circuits
(Continued)
This circuit design, detailed in the Design Considerations
section, uses inexpensive aluminum capacitors and off-the-
shelf inductors. It can deliver 10A at better than 85% effi-
ciency. Large bulk capacitance on input and output ensure
stable operation.
The example circuit of
Figure 4
has been designed for
minimum component count and overall solution size. A
switching frequency of 600kHz allows the use of small input/
output capacitors and a small inductor. The availability of
separate 5V and 12V supplies (such as those available from
desk-top computer supplies) and the low current further
reduce component count. Using the 12V supply to power the
MOSFET drivers eliminates the bootstrap diode, D1. At low
currents, smaller FETs or dual FETs are often the most
efficient solutions. Here, the Si4826DY, an asymmetric dual
FET in an SO-8 package, yields 92% efficiency at a load of
2A.
20049404
FIGURE 3. 5V to 1.2V, 10A, 300kHz
20049405
FIGURE 4. 5V to 1.8V, 3A, 600kHz
L
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| C3216X7R1E105K /8 | 制造商:TDK CORPORATION OF AMERICA 功能描述:Cap Ceramic 1uF 25V X7R 10% SMD 1206 125?C T/R |
| C3216X7R1E105K/0.85 | 功能描述:多層陶瓷電容器MLCC - SMD/SMT 1206 1.0uF 25V X7R 10% RoHS:否 制造商:American Technical Ceramics (ATC) 電容:10 pF 容差:1 % 電壓額定值:250 V 溫度系數(shù)/代碼:C0G (NP0) 外殼代碼 - in:0505 外殼代碼 - mm:1414 工作溫度范圍:- 55 C to + 125 C 產(chǎn)品:Low ESR MLCCs 封裝:Reel |
| C3216X7R1E105K/1.60 | 功能描述:多層陶瓷電容器MLCC - SMD/SMT 1uF 10% 25Volts RoHS:否 制造商:American Technical Ceramics (ATC) 電容:10 pF 容差:1 % 電壓額定值:250 V 溫度系數(shù)/代碼:C0G (NP0) 外殼代碼 - in:0505 外殼代碼 - mm:1414 工作溫度范圍:- 55 C to + 125 C 產(chǎn)品:Low ESR MLCCs 封裝:Reel |
| C3216X7R1E105K/10 | 制造商:TDK CORPORATION OF AMERICA 功能描述:MLCC |
| C3216X7R1E105K/8 | 功能描述:CAP CER 1UF 25V 10% X7R 1206 RoHS:是 類別:電容器 >> 陶瓷 系列:C 標準包裝:4,000 系列:- 電容:1000pF 電壓 - 額定:50V 容差:±10% 溫度系數(shù):X7R 安裝類型:表面貼裝，MLCC 工作溫度:-55°C ~ 125°C 應(yīng)用:自動 額定值:AEC-Q200 封裝/外殼:0805（2012 公制） 尺寸/尺寸:0.079" L x 0.047" W（2.00mm x 1.20mm） 高度 - 座高（最大）:- 厚度（最大）:- 引線間隔:- 特點:- 包裝:帶卷 (TR) 引線型:- |
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