LTM8067 output paralleling with resistor

Question

Hi, 
 I want to use two LTM8067 module in parallel with 32V input to get 5V, 500mA output. To have current sharing, I want to use 100mOhm series resistor for each LTM8067 output. Is it a good way to have current sharing? 
 
 I know LTM8057 output current is higher, but 32V input is high for it.

Fil · Answer

Hi, 
 100mOhms is not enough to insure droop sharing. One converter may hit current limit before the second starts to pickup the rest of the load. A higher ballast resistors will hurt efficiency. We don't have typical application circuit for this so you may have to verify your circuit in bench.

Electronic Design Services - PartnerZone

Products In This Thread

LTM8067 output paralleling with resistor

Top Replies