D24V50F5 enable pin - debouncing needed?

Support Voltage regulators
1

Hello Pololu Team,

i want to use the Enable pin on my D24V50F5 (Pololu 5V, 5A Step-Down Voltage Regulator) to switch my project on and of…
(so there are less voltage-spikes…)

my power source are 4 Li-ion protected cells in series (10V - 16.8V)
(Lithium Ion Cylindrical Battery - 3.7v 2200mAh)
i just want to connect a simple Toggle Switch between GND and Enable.
these switches can bounce - do i need to make some HW de-bouncing?
or is the enable pin / controller resistant to some bouncing?

i read it has a soft-start function.
and i also can see about 13ms rise time of the voltage with a light test load (57mA - just 3 leds…) on my oscilloscope. so seems this works nicely :wink:

hope i don’t need HW de-bouncing :wink:
sunny greetings
stefan

2

Hello, Stefan.

Is there a reason you do not want to use the switch to control the power instead of the enable line?

-Tony

3

my idea was to use the enable line so there are less spikes produced.
another advantage is i could use a smaller switch. (it only needs to handle some mA - instead of the full power)

in the meantime i tried to just use the enable line with a bouncy pushbutton for testing -
and it seems the controller handles it just fine.

4

Glad to hear it is working for you, thanks for letting us know.

-Tony