Team,
we'd like to use LM3478 for first boost stage in our design (around 12W). Vin=5.8-8.2V, Vout=12V, Iout=1A, f=170kHz.
While testing it, we found that the PWM is very unstable. The output voltage is stable (despite the 0.5V dip happening on full load).
We tried different compensation methods, without effect. On the CS pin there's max 25mV now.
Attaching block diagram and scopeshot below.
Looking forward for your help.
Thanks and regards
