In one embodiment, a method is provided for reducing soft-start delay and
ensuring soft recovery from a short circuit or brown out condition in a
power converter. The method includes: providing a feedback signal
indicative of the output voltage of the power system at a first input
terminal of an error amplifier; providing a soft-start reference voltage
at a second input terminal of the error amplifier; comparing the feedback
signal against the soft-start reference voltage to generate a control
signal for regulating an output voltage of the power converter; sourcing
current for pre-charging a soft-start capacitor associated with the
soft-start reference voltage, thereby reducing soft-start delay; and
sinking current for discharging the soft-start capacitor in the event of
a short circuit or brown out condition, thereby providing soft recovery
after short circuit or brown out events.