BAT-54 National Semiconductor Corporation, BAT-54 Datasheet - Page 13

• Manufacturer Part Number: BAT-54
• Description: N-channel Fet Synchronous Buck Regulator Controller For Low Output Voltages
• Manufacturer: National Semiconductor Corporation

Application Information
FET Conduction Loss
Input Capacitor Loss
4.28
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
2
*0.018/2 = 0.084W
P
Cn
= 0.533W
(Continued)
FIGURE 2. 5V-16V to 3.3V, 10A, 300kHz
13
Input Inductor Loss
2.82
Output Inductor Loss
10
System Efficiency
this circuit is the inductor L1, which is 6mm tall. The com-
pensation has been designed to tolerate input voltages from
5 to 16V.
2
*0.004 = 0.4W
2
*0.007 = 0.055W
P
P
Lout
Lin
= I
= I
2
2
in
o
* DCR
* DCR
output-L
input-L
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