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LM2727 데이터시트(PDF) 13 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
부품명 LM2727
상세설명  N-Channel FET Synchronous Buck Regulator Controller for Low Output Voltages
PDF  22 Pages
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제조업체  NSC [National Semiconductor (TI)]
홈페이지  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2727 데이터시트(HTML) 13 Page - National Semiconductor (TI)

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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
www.national.com
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