參數(shù)資料
型號(hào): 4TPB220ML
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(chǎng)效應(yīng)管同步降壓穩(wěn)壓控制器輸出電壓低
文件頁(yè)數(shù): 5/22頁(yè)
文件大?。?/td> 602K
代理商: 4TPB220ML
Application Information (Continued)
FET Conduction Loss
P
Cn = 0.533W
Input Capacitor Loss
4.28
2*0.018/2 = 0.084W
Input Inductor Loss
P
Lin =I
2
in * DCRinput-L
2.82
2*0.007 = 0.055W
Output Inductor Loss
P
Lout =I
2
o * DCRoutput-L
10
2*0.004 = 0.4W
System Efficiency
Example Circuits
This circuit and the one featured on the front page have been
designed to deliver high current and high efficiency in a small
package, both in area and in height The tallest component in
this circuit is the inductor L1, which is 6mm tall. The com-
pensation has been designed to tolerate input voltages from
5 to 16V.
20049403
FIGURE 2. 5V-16V to 3.3V, 10A, 300kHz
LM2727/LM2737
www.national.com
13
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