通通

LM5175/5176-synchronous boost-buck

 
Overview

Running diagram:3YcTr3xBaEswtg6NZuCMJh6MDoQzHo7N1fsk3shI.jpeg

 

Measured efficiency

Output ripple @12v 2.4A

 

H6C2sdiSP74iUE694zRCYyYbIYagdeXXcnXMUB9c.jpeg

 

 

Debugging method:

Please use a 0 ohm resistor for the gate resistor first.

Then short the jumper cap to CCM. If the input voltage is greater than the output voltage, adjust the gate drive resistor to eliminate the ringing of SW.

DCM can improve efficiency in light load mode

参考设计图片
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Update:2025-05-08 15:17:41

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