Hi,
I have a LM5088 based converter 50V/30V, 0.1 - 30W
which enters low frequency sawtooth oscillation on the output when dumping the load from current limitation to 0,1 W.
I belive that it is a compensation issue, please any feedback is appreciated.
250 kHz
L=100uH
Co=10uF
Rsense=40mR
Feedback voltage divider top resistor (Rf1) = 43k5
C.ramp = 1nF (pullup to Vcc by 62k)
Compensation is (220nF + 10k) || 1nF
Br,
HKH
