We are designing a DC / DC power supply circuit using the LM3478.
The design parameters are as follows.
Vin = 5V
Vout = 40V
Iout = 0 ~ 2mA
Fs = 500 ~ 600kHz (changeable)
The result of the simulation cannot be obtained by changing the parameters a little.
Also, when the circuit is actually manufactured and evaluated, Vout = 40V when Iout = 0mA (load circuit open), but Vout decreases as the load current increases.
Could you give some advice?