LTC3785 for high current applications upto 20A

Question

Hello, 
 I am exploring the buck-boost converter with external switches which can accept single Li-ion battery input and generate 3.3V at 20A. I could see LTC3785 which can be used for my application, but in the datasheet it is mentioned as 10A is the max current. If we size the MOSFETs, can we use this IC upto 20A output current application? 
 If i want to use the external current sense resistor, please provide a sketch where it should be connected. Thanks. 
 Regards, Manikandan.M

Jhun · Answer

Hello, 
 
 You can use LTPowerCAD to aid you with the design. Since this is a controller, you should be able to generate an output capable of 3.3V, 20A. 
 I suggest that you use LTSpice to simulate the design to have an idea of the behavior. 
 
 Regards, 
 Jhun

Electronic Design Services - PartnerZone

LTC3785 for high current applications upto 20A

Top Replies