DC2431A

Demonstration circuit 2431A is a 4-switch synchronous buck-boost regulator that demonstrates the high power capability of the LT®8390. The output is 12V and the maximum output current is 25A for up to 300W power delivery. The switching frequency is 150KHz and efficiency can go higher than 98%. DC2431A features MOSFETs that complement the 5V gate drive of the LT8390 to achieve high efficiency. 40V MOSFETs are used on the input side of the four-switch topology while 25V MOSFETs are used on the output side. Ceramic capacitors are used at both the circuit input and output because of their small size and high ripple current capability. In addition to ceramic capacitors, there are four bulk aluminium polymer capacitors on the output.

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