Hello,
I have designed a Boost Converter which operates at 325KHz, 3V-6V of input voltage to get 6V 6A (36W) and i am using a 5m ohm current sense resistor to input Isense pin of LM3481. when ever the load is increased the output voltage drops to <4V, i have added output voltage waveforms below 18W (Fig1), above 18W (Fig2) and the schematics (Fig3). F Is there any problem with the compensation circuitry and current sensing ? What can I do to overcome this issue?
Fig 1
Fig 3