Problem1: Design of COMP pin following TI’s datasheet, but bring up is fail, output voltage Vo = 0V (schematic available via email). After I reworked COMP pin to follow TI EVM (changes: capacitor 10nF from COMP to AGND), it work with Vo = 3.3V.
Problem 2: When simulatied transient by PSpice, the original design worked on simulation, but failed on hardware. Why didn't the simulation model pick up this issue?
