I'm working on a 5V buck converter circuit. Below is the schematics:
The circuit is designed using the LM43603-Q1.
I put in an input voltage of 8.4V into the PCM_IN pin. I used a variable load to test the circuit. The problem is that as soon I withdraw 200mA from the circuit, the output voltage drops from 5V to 3.8V. Any suggestion for what could be causing the problem?