Q
What is the benefit of hiccup mode when over current/short circuit happens?
A
Hiccup mode keeps the output current in a lower level when over current/short circuit happens to reduce the heat…
Question What is the deglitch time when PGOOD reversing? Answer The deglitch time of PGOOD from low to high is 1024 clock cycles and the
deglitch time of PGOOD from high to low is 16 clock cycles.
Q
What is the fastest soft start time that ADP2386 can achieve?
A
ADP2386 always chooses the slower soft start between internal SS time and external programmed SS time. If external SS time is programmed…
Question What is the PGOOD feature of ADP2386? Answer The PGOOD is an active high, open-drain output that requires an external
resistor to pull it up to a voltage. A pull-up resistor between 10k to 100k…
Question How do I program soft start time of ADP2386? Answer Connect an external capacitor from SS pin to GND to program the soft start
time. Follow the attached equation to get the soft start time.
Question How do I set the switching frequency? Answer The switching frequency of ADP2386 is controlled by the RT pin.
A resistor from RT pin to GND can program the switching frequency according to
…
Question Can I leave the SS pin open? Answer Yes.
ADP2386 will use internal soft start when SS pin is left open. Follow the
attached equation to get the internal soft start time.
Where fSW is the…
Question When doing layout, how do I treat the GND-EP (pin 25) and SW-EP (pin 26)? Answer The GND exposed pad should be connected to the ground plane to reduce thermal
resistance.
Add several vias…
